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CONSOLIDATED TO 30 JUNE 2012

LAWS OF SEYCHELLES

CHAPTER 212

SEYCHELLES BUREAU OF STANDARDS ACT

[20th October 1987]

ARRANGEMENT OF SECTIONS

PART I-PRELIMINARY

1. Short title

2. Interpretation

PART II-THE BUREAU

3. Establishment of the Bureau

4. Functions of the Bureau

4A. Bureau to be responsible for research and development

5. Director

6. Staff of the Bureau

7. Funds of the Bureau

8. Estimates

9. Accounts

10. Directions of the Minister

PART III-THE COUNCIL AND TECHNICAL COMMITTEES

11. National Standards Council

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Act 8 of 1987Act 14 of 1997

12. Functions of the Council

13. Meeting of the Council

14. Technical commitees

PART IV - SPECIFICATIONS, CODES OF PRACTICE AND MARKS

15. Standard specifications and code of practice

16. Mandatory standard specification

17. Standard marks

PART V-MISCELLANEOUS

18. Entry of premises, etc.

19. Secrecy

20. Restrictions on use of certain words

21. Protection against claims

22. Disclosure of information by worker

23. Offences

24. Regulations

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PART I-PRELIMINARY

1. This Act may be cited as the Seychelles Bureau of Standards Act. 2. In the Act-

"Bureau" means the Seychelles Bureau of Standards established by section 3; "code of practice" means a set of rules relating to methods and procedures to be applied or adopted in respect of any commodity, process or practice; "Council" means the National Standards Council established by section 11; "Director" means the Director of the Bureau appointed under section 5;

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"Commodity" means an article, product or thing which is the subject of trade or commerce; "inspector" means a person appointed under section 6(2) as an inspector; "mandatory standards specification" means a standard specification declared under section 16(1); "mark" includes any device, brand, heading, label, ticket,name, signature, word, letter or numeral or any combination thereof; "specification" means a description of a commodity, process or practice by reference to its nature, quality, strength, purity, composition, quantity, dimension, weight, grade, durability, origin, age or other characteristic; "standard code prectice" or "standard specification" means a code of practice or a specification declared under section 15(5); "Standard mark" means a mark authorised under section 17(1);

PART II - THE BUREAU

3. There is hereby established the Seychelles Bureau of Standards which shall be a

body corporate. 4. The functions of the Bureau are-

(a) to promote standardisation in industry and commerce; (b) to prepare draft specifications and codes of practice and to declare the

standard specifications and standard codes of practice; (c) to make arrangements or provide facilities for the examination and

testing of commodities and any material or substance from which or with which they may be manufactured, produced, processed or treated and for the manner of such manufacture, production, processing or treatment;

(d) to provide for use of standard marks; (e) to provide for the examination, testing and calibration of instruments,

appliances, apparatus and, subject to the Weights and Measures Act, weights and measures and weighting and measuring instruments in relation to their accurecy;

(f) to provide for the testing of commodities manufactured in Seychelles or

imported into Seychelles for the purpose of determining whether the

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commodities comply with the provisions of this Act or any other law dealing with specifications;

(g) subject to the Weight and Measures Act, to be place of deposit for the

National Standards and secondary standards for weights and measures and to calibrate the working standards kept under that Act;

(h) to do such thing as may be expedient or necessary for the proper

performance of its functions, including the levy of such fees and charges for the performance of its functions as may be prescribed; and

(i) to exercise the functions conferred on any person by or under the

Weights and Measures Act, other than those conferred by or under that Act on the Minister responsible for the administration of that Act and to do such things as may be incidental to or consequential upon the exercise of those functions.

4A. The Bureau shall be responsible for research and development in general, and

shall be charged with the following functions -

(a) to advise the Government on a national research and development policy, including general planning and the assessment of the requisite financial resources;

(b) to identify research and development activities consonant with the

national development objectives; (c) to ensure the application of the results of research activities to national

development and for the welfare of the people of Seychelles; (d) to initiate, support, coordinate and monitor research and development

activities of the nation and ensure maximum utilisation of research resources;

(e) to collect and collate information on research and development of

relevance to Seychelles and evaluate and disseminate research findings;

(f) to maintain relationships with corresponding research and development organisations in other countries and where the national interest so requires, to control and coordinate research carried out in Seychelles;

(g) to undertake any other activities or measures likely to assist in the

carrying out of its functions.

5. (1) The Minister shall appoint a person to be the Director of the Bureau on terms and conditions applicable to employees of public bodies.

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(2) The Director shall be a person who, in the opinion of the Minister, is suitably qualified in science and technology relevant to the functions of the Bureau.

(3) Subject to the directions of the Minister, the Director-

(a) shall have supervision over and direction of the day-to-day affairs of the Bureau and shall be its cheif executive officer;

(b) shall perform the functions of the Bureau; (c) shall have power to sign documents on behalf of the Bureau; and (d) may delegate any of his powers to any other employee of the

Bureau or to any public officer.

(4) Where the Director is for any reason unable to perform the functions of his ofice, the Minister may appoint a person to perform the functions of the Director until the Director assumes the functions of the office.

6. (1) The Bureau may employ such persons as are necessary to assist the Director in the performance of his functions on terms and conditions and according to the procedures applicable to employees of public bodies.

(2) In exercise of the powers under subsection (1), the Bureau shall appoint inspectors and may appoint an inspector appointed under section 7 of the Weight and Measures Act as an inspector under this Act.

7. (1) The funds of the Bureau shall consist of-

(a) moneys appropriated by the Appropriation Act and paid to the Bureau;

(b) moneys lawfully charged by the Bureau.

(2) The funds of the Bureau may be applied by the Bureau-

(a) in payment of expenses incurred by the Bureau in the performance of its functions;

(b) in payment of remuneration, fees and allowances payable to its

staff including that of the Director.

8. (1) For each financial year of the Bureau, the Bureau shall prepare and submit to the Minister, the Minister responsible for finance and the Council the estimates of income and expenditure of the Bureau.

(2) The Minister may, acting after consultation with the Council and Minister responsible for finance, approve with or without modification the estimates submitted under subsection (1).

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(3) After the Minister approves the estimates under subsection (2), the

estimates so approved shall be the estimates of the Bureau for the financial year for which it is prepared.

(4) The financial year of the bureau shall be a period of 12 mounths ending

on the 31st of December of any years:

9. (1) The Bureau shall keep proper accounts and records in relation to the accounts and shall prepare in respect of each financial year of the Bureau a statement of accounts in such form as the Minister, acting after consultation with the Minister responsible for finance, may direct.

(2) The accounts and the statement of accounts shall be audited by an auditor appointed by the Minister acting after consultation with the Minister responsible for finance.

(3) As soon as the accounts and statement of accounts are audited pursuant

to subsection (2), the Bureau shall send to the Minister, the Minister responsible for finance and the Council a copy of the statement together with a copy of any report made by the auditor on the statement or the accounts of the Bureau.

10. The Minister may, in consultation with the Council, give to the Bureau directions in writing on the policy to be followed by the Bureau in the performance of its functions and the Bureau shall comply with those directions.

PART III- THE COUNCIL AND TECHNICALCOMMITTEES

11. (1) These shall be a National Standards Council which shall consist of such

members as the Minister may, subject to subsection (2), appoint.

(2) The Minister shall appoint to the Council as its members at least one person from each of the following categories of persons -

(a) a person who in his opinion represents the manufacturers, wholesalers and retailers of commodities in Seychelles;

(b) a person who in his opinion represents consumers in Seychelles;

and (c) a person who in his opinion represents the public service.

(3) The Director shall be an ex-officio member of the Council and shall be

its secretary. (4) The Minister shall appoint one of the members of the Council as its

Chairman.

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(5) A member of the Council, other than the Director, shall hold office for

such term as the Minister may determine and shall, at the expiry of his term of office, be eligible for re-appointment.

12. The Council shall advise the Minister on matters relating to-

(a) the policy of the Bureau in relation to the administration and financial management of the Bureau;

(b) the preparation of draft specifications and codes of practice and the

declaration of standard specifications and standard codes of practice; (c) authorisation and use of standard marks. (d) any other matters referred to the Council by the Minister for carrying out

the provisions of this Act.

13. (1) The Council may meet at such times as the Council may deem it necessary for carrying out its functions but shall meet not less than twice any year.

(2) The Chairman or in his absence any other member, other than the Director, nominated by the Minister shall preside at any meeting of the Council.

(3) Questions arising at a meeting of the Council shall be decided by a

majority of the votes of the members present at the meeting and in the event of an equality of votes the Chairmen or the member presiding shall have a second or casting vote.

(4) The quorum of the Council shall be such number of members as the

Minister may, at the time of appointment of the members, determine. (5) Subject to the preceding provisions of this section, the Council shall

regulate its own proceedings.

14. (1) Where the Council deems it desirable that the matter for determination by the Council shall be referred to a technical committee for the consideration of such committee, the Minister shall after consultation with the council, appoint a technical committee.

(2) The composition and functions of the technical committee and the terms and conditions of appointment of its members shall be determined by the Minister in consultation with the Council.

(3) A technical committee shall cease to function after it has considered the

matter referred to it and tendered its advice to the Council.

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(4) Subject to any directions of the Minister and the Council, a technical committee shall regulate its own proceedings.

PART IV-SPECIFICATIONS, CODES OF PRACTICEAND MARKS

15. (1) Where the Bureau deems it desirable to declare a standard specifications

or standard code of practice, it shall prepare a draft specification or a draft code of practice.

(2) Where a commodity, process or practice in respect of which a draft specification or draft code of practice is prepared is under the control or supervision of any Ministry or Government department, the Bureau shall consult that Ministry or Department.

(3) The Bureau shall by a notice published in a local newspaper and by such

other means determined by the Bureau, give wide publicity to the draft specification or draft code of practice prepared pursuant to subsection (1), and specify in such notice a place for the inspection of the draft specification or code.

(4) Any person may within 30 days of the publication of the notice under

subsection (3) lodge with the Director a written objection or representation in respect of the draft specification or draft code of practice.

(5) The Bureau may, having regard to the objections or representation (if

any) lodged under subsection (4), confirm with or without modification, the draft specification or code of practice and declare by notice published in a local newspaper a standard specification or a standard code of practice.

16. (1) The Minister may by notice published in a local newspaper and the Gazette declare a standard specification to be mandatory standard specification with effect from a date specified in the notice.

(2) Where the Minister declares a mandatory standard specification, every person conserned at any stage of the manufacture, production, processing, treatment or distribution of the commodity in respect of which the declaration is made shall ensure compliance with that specification.

17. (1) The Minister may on the recommedation of the Bureau authorise standard marks.

(2) A standard mark shall distinguish a commodity, process or practice which conforms to a standard specification from those that do not conform to that specification.

(3) The Bureau may, subject to such conditions as it may impose, permit a

person to use a standard mark authorised under subsection (1) where the commodity, process or practice in respect of which it is used conforms to a standard specification.

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(4) An application for a permit under subsection (3) shall be made in

writing to the Director and the Director may require the applicant to furnish such particulars as he may require.

PART V-MISCHELLANEOUS

18. (1) An inspector or any person authorised by the Director may-

(a) at all reasonable times enter any premises in which any commodity, process or practice is or is reasonably suspected of being manufactured, produced, processed, treated or kept for the purpose of any trade or business;

(b) inspect or take samples of the commodity or of any material used

or suspected to be intended for use in the manufacture, production, processing or treatment of the commodity;

(c) inspect the process or practice and make any notes in relation to

the process or practice; (d) inspect any operation carried out in the premises in connection

with the commodity; (e) require any person to produce any document which is in his

possession, custody or control and which relates to the commodity, process or practice;

(f) examine and make copies or take extracts from the document;

and (g) require any person to appear before him and answer any

questions relating to the commodity, process or practice.

(2) An inspector or any person authorised under subsection (1) shall, if so required, produce his authority to excercise the powers under this section.

19. Except for the purposes of this Act or any other Act or when required by any court, no person shall disclose any information in relation to any commodity, process or practice which he has acquired in the exercise of his functions under this Act.

20. (1) No person, other than the Bureau, shall, except with the consent of the Minister in writing, use a name which contains any combination of the words "Seychelles Bureau of Standards" or "Seychelles Standards."

(2) Subsection (1) shall not apply to a person using a name described in that subsection prior to the commencement of this Act or to any name so used prior to such commencement.

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21. The fact that a commodity, process or practice conforms or is alleged to conform to a standard specification or a standard code of practice or the fact that a standard mark is used in connection with any commodity, process or practice shall not give rise to any claim against the Bureau.

22. Notwithstanding anything in any other law or in any under-taking in respect of disclosure of information, a worker shall not be liable to any penalty for disclosure of information to an inspector or any person when required to do so under section 18 and the employer of that worker shall not do anything to the prejudice of the worker on the ground of such disclosure.

23. (1) Any person who-

(a) prevents, hinders or obstructs any inspector or any person authorised under section 18 in the excercise of the inspector's or that person's functions under this Act;

(b) fails to produce any document or to appear or answer any

questions when required to do so under section 18; (c) contravenes section 19 or 20; (d) being a person concerned at any stage of the manufacture,

production, processing, treatment or distribution of a commodity in respect of which a mandatory standard specification has been declared, contravenes section 16(2);

(e) being an employer, contravenes section 22,

is guilty of an offence and liable on conviction to a fine of R.10.000.

(2) Any person who -

(a) uses a standard mark without a permit granted by the Bureau or contravenes any conditions of the permit;

(b) makes any statement or representation, whether in writing or not,

or uses a standard mark which conveys or is likely to convey the impression that a commodity, process or practice conforms to a standard specification or a standard code of practice, as the case may be, when it does not do so;

(c) without the consent of the Bureau in writing or fraudulently

makes any statement or representation, whether in writing or not, whereby comparision is made in respect of any commodity, process or practice with any standard specification,

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is guilty of an offence and liable on conviction to a fine of R.20,000 and to imprisonment for one year and is liable to a further fine of R.5,000 for each day he continues to commit that offence after conviction.

24. (1) The Minister may make regulations for carrying into effect the purposes and provisions of this Act.

(2) Without prejudice to the generality of subsection (1) regulations may provide for-

(a) matters relating to packaging, labelling, description and advertising of any commodity for which a standard specification has been declared;

(b) matters relating to inspection, taking samples and testing of

commodities; (c) matters which by this Act are required to be prescribed or which

are necessary or convenient to be prescribed; (d) offences and penalties not exceeding R.10,000 by way of fine.

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LAWS OF SEYCHELLES

SEYCHELLES BUREAU OF STANDARDS ACT

CHAPTER 212

SUBSIDIARY LEGISLATION

Section 16

SEYCHELLES BUREAU OF STANDARDS

(STANDARD SPECIFICATION FOR

REFILLABLE GAS CYLINDERS) NOTICE

[21st October, 1991)

1. This Notice may be cited as the Seychelles Bureau of Standards (Standard Specification for refillable gas cylinder) Notice.

2. The President, being the Minister responsible for the administration of the Seychelles Bureau of Standards Act, for declares the standard specification set out in the Schedule gas to be mandatory standard specification for refillable gas cylinders.

Cap. 212

SCHEDULE (reg. 2)

TABLE OF CONTENTS

SECTION ONE : GENERAL

1.1 Scope

SECTION TWO: GENERAL REQUIREMENTS

SECTION THREE: PREPARATION OF GAS CONTAINERS

FOR INSPECTION/TESTING

3.1 Hydraulic Pressure Test

3.2 Hydraulic Volumetric Expansion Test

3.3 Records

3.4 Destruction of Unserviceable Containers

SECTION FOUR: MARKING OF TESTED GAS CONTAINERS

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S.I. 62 of 1991

APPENDIX A : CORROSION

A.1 General

A.2 Types of Corrosion

TABLES

A.3 Evaluation of Corrosion

A.4 Rejection Limits

Table 1 : Intervals between Periodic Inspection and HydraulicTests

Table 2 : Rejection Limits Relating to Physical and Material Defects in the Container Shell

Table 3 : Rejection Limits for Gas Containers at Time of Inspection

REFERENCES


1.1 Scope

This standard specification specifies requirements for the periodic inspection, testing and maintenance of refillable transportable gas containers of water capacity 1 litre and above; it also applies, as far as is practicable, to containers of less than 1 litre water capacity.

SECTION TWO : GENERAL REQUIREMENTS

2.1 All refillable gas containers shall be subjected to periodic inspection and testing.

2.2 Gas containers due for periodic inspection and testing shall be identified primarily from the date of manufacture stamped on the gas container or the last periodic test date of the manufacturer stamped on the gas container or the last periodic test date of an Accredited Testing Centre stamped on the gas container.

2.3 Any container that has not been inspected or tested within the interval specified in Table 1 shall not be filled.

2.4 The responsibility for ensuring that the gas container is tested at the prescribed intervals rests with the owner.

2.5 The equipment and methods used for testing and inspecting gas containers shall comply with the requirements of this standard specification. It is emphasized that inspection is of prime importance for the identification of defects liable to render the container unsafe.

2.6 All gas containers shall be visually inspected before filling. Visual inspections must also include corrosion damage i.e. sound tests.

Table 1 : Intervals between Periodic Inspection and Hydraulic Tests

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Gas containers for :

Hydraulic

Pressure

Test

Visual Internal and

External Inspection

Permanent and high pressure liquefiable gases including carbon dioxide, oxygen, argon, nitrogen, helium, air, hydrogen 4 years

All gases and gas mixtures used in self-contained breathing apparatus, to include self-contained breathing apparatus for fire fighters

2 years 1 year

Compressed air for diving

(Steel)2 years 1 year

Compressed air for diving

(Aluminium)4 years 1 year

Low pressure liquefiable gases

including ammonia, butane, refrigerant gases, propane4 years 2 years

Pressurized fire extinguishers 4 year

NOTE. The initial periodic test shall be carried out 3 years from the date of manufacture.

SECTION THREE : PREPARATION OF GAS CONTAINERS FOR INSPECTION/TESTING

(a) Check markings.

(b) Depressurize to atmospheric pressure.

(c) If necessary remove all loose paint, or coating from external surface using a wire brush or other suitable method as approved by SBS.

(d) Inspect for dents and corrosion.

(e) Check internally using an inspection lamp of sufficient intensity to identify any defects.

(f) Check threads of valves.

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(g) Inspect valve fittings.

(h) Check tare weight.

(i) Sound Test : Each cylinder shall be struck with a steel object on the body. A cylinder giving a muffled ring will indicate corrosion or defects. (Refer to Appendix A.)

Table 2 : Rejection Limits Relating to Physical and Material Defects in the Container Shell

DEFECTS DEFINITION REJECTION LIMIT

Bulge visible swelling of the container All

Dent

A depression in the container that has neither penetrated nor removed metal

Permanent and high pressure liquefiable gases:

When the depth of any dent exceeds 2 mm or when the diameter of any indentation is less than 30 times its depth.

Low pressure liquefiable gases:

when the depth of any dent exceeds Â¼ of its width at any point. On small diameter containers these general limits may have to be adjusted. Consideration of appearance also plays a part in the evaluation of dents, especially in the case of small containers.

Cut or GougeA sharp impression where metal has been removed or redistributed.

When the length of any cut or gouge exceeds 2% of the container length or the depth exceeds 5% of the wall thickness.

Dent containing cut or gouge

A depression in the container within which there is a cut or gouge.

When the size of the dent or gouge is greater than the dimension for rejection as an individual defect. When neither of these is exceeded but the depth any dent exceeds 1.5 mm or the diameter of any dent is less than 35 times its depth and length of cut is at least equal to the diameter of the dent.

Crack A split or rift in the metal All

Lamination Lamination may show in the form of a crack or bulge and

All

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are due to folds resulting from inclusions during the manufacturing process.

Wear at the knuckle end of the container base

Removal of material from the knuckle end of the container

When the thickness of the knuckle at the point of greatest wear is less than 75% of the original.

Corrosion see Appendix A

Table 3 : Rejection Limits for Gas Containers at Time of Inspection

DEFECTS DEFINITION REJECTION LIMIT

Fire damage

Excessive general or localized heating of a container usually indicated by:

When evidence of fire damage is accompanied by (b) or (c).

(a) charring or burning of the paint;

(b) burning of the metal;

(c) distortion of the container;

(d) melting of the metallic valve parts.

If only (a) or (d) is evident see Note.

Plug or neck inserts

Additional metal inserts fitted in the container neck or base had a plug or neck insert

When any container fitted unless it can be ascertained that the plug or neck insert is part of the approved design of the container.

Stamping Marking by means of a metal punch

When any container has stamping on the parallel section, or where the stamping is illegible or inadequate, or has been altered.

When it can be clearly established from record or otherwise, that the container fully complies with the requirements of the appropriate manufacturing specification for the relevant gas service an altered marking may be acceptable and illegible or inadequate markings may be

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corrected.

Arc or torch burns

Burning of the container metal, a hardened heat affected zone, the addition of weld metal, or the removing of metal by scarfing or cratering.

When any container show evidence of arc or torch burns or added metal.

NOTE. If paint is only charred a container may be accepted, but if paint has been removed by heat, or if metallic parts of a valve have been melted, the decision to accept, refurbish or reject shall be made the responsibility of a competent person. When so decided by a competent person, reheat treatment and retest which must include hydrostatic tests may be carried out in accordance with the specification to which the container was made.

3.1 Hydraulic Pressure Test

Each container will be submitted to a hydraulic pressure test, which may take the form of either a proof pressure test or a volumetric expansion test.

Normally, the proof pressure test shall be carried out; in the following circumstances, however, the volumetric expansion test shall be carried out instead:

(a) where the container is employed on a duty known to cause a significantly high risk of general corrosion,

(b) at the discretion of the testing station from its knowledge and experience of the history of using containers in a particular service,

(c) at the discretion of the testing station in order to resolve any doubt arising from the inspection of a container.

(d) all aluminium diving cylinders

3.1.1 Test Method

(a) More than one container may be tested at a time provided that they all have the same test pressure and that each individual test point is capable of being isolated.

(b) The test pressure shall be established from the marking on the container or as stipulated by the manufacturer.

(c) Before applying pressure the external surface of the container(s) shall be completely dry.

(d) The test pressure, once attained, shall be held for a minimum period of 2 minutes during which period the pressure as registered on the test gauge shall remain constant.

(e) Under these conditions the containers shall not show any sign of leakage visible deformation or defect.

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(f) If there is a leakage in the pressure system it shall be corrected and the container(s) shall be retested.

3.2 Hydraulic Volumetric Expansion Test

The test pressure applied shall be that marked on the container or as stipulatd by the manufacturer, or 5/3 of working pressure.

The permanent volumetric expansion of the container expressed as a percentage of the total expansion at test pressure shall not exceed 10% or as stipulatd by the manufacturer.

If the test is carried out by means of the non-water-jacket method, the container shall be examined for signs of leakage when subjected to the test pressure.

If the permanent volumetric expansion exceeds 10% of the total expansion at test pressure, or the manufacturer's stipulated value, the container shall be rejected and destroyed in accordance with clause 3.4.

However, where it can be clearly established that apparent excessive permanent volumetric expansion of a container is the result of a fault in the test equipment the container may be retested. Where the cylinder may have been over-pressurized, the test shall be carried out only after reheat treatment.

3.2.1 Failed Containers

Any container that fails to comply with the requirements of either of the two tests shall be set aside for destruction in accordance with clause 3.4.

3.2.2 Drying of Containers

Where water has been used as the test medium, the interior of each container shall be thoroughly dried by a suitable method as approved by SBS immediately after hydraulic testing.

The interior of the container shall be inspected to ensure that it is dry and free from contamination. Any contamination shall be removed by a suitable method.

3.3 Records

An inspection/test record of each container shall be retained by the testing station and the owner for not less than the interval between tests laid down in Table 1, and shall include the following information:

(i) owner

(ii) serial number

(iii) manufacturing specification

(iv) water capacity

(v) tare or empty weight as tested

(vi) test pressure

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(vii) inspection/test date

(viii) result of inspection/test

(ix) inspector

(x) details of any modification made to the container

(xi) name of gas contained

3.4 Destruction of Unserviceable Containers

Containers that have been deemed unsuitable for further service shall be impounded and handed over to SBS where it shall be retained for 3 months during which time the owner may appeal, failing which it shall be destroyed by SBS using one of the following methods, but before any container is destroyed it shall be depressurized, the contents being discharged in a safe manner as approved by SBS.

(a) the container shall be crushed by mechanical means.

(b) An irregular hole shall be burned in the top dome of the container, equivalent in area to approximately 10% of the area of the top dome; or, in the case of thin-walled container, the container will be pierced in at least three places.

Any alternative method approved by the Seychelles Bureau of Standards may be used instead.

Drilling a hole in a container shall not be considered as satisfying the requirements of this clause.

SECTION FOUR : MARKING OF TESTED GAS CONTAINERS

After satisfactory inspection and testing, gas containers shall be marked with the approved testing centre's mark. The test date shall be indicated by the month and the last two digits of the year, e.g. LAS -11-88 where LAS stands for Liquid Air Seychelles.

APPENDIX A : CORROSION

A.1 General

The walls of the container may be subjected to environmental conditions that could cause external corrosion of the metal.

Internal corrosion of the metal may also occur owing to service conditions or as a result of the nature of the gas conveyed in the container.

There is difficulty in presenting definite rejection limits in tabular form for all sizes and types of containers and their service conditions. The limits of rejection are usually established by individual companies, for their own containers, only after considerable field experience.

Extensive experience and judgement are required in evaluating whether containers that have corroded internally or externally are safe and suitable for return to service. It is important that the surface of the metal is completely cleaned of corrosion products prior to the inspection of the container.

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A.2 Types of Corrosion

The types of corrosion generally experienced may be classified as follows.

(a) General corrosion. General corrosion is that which has caused a reduction in wall thickness over an area exceeding 20% of the container surface, and may occur externally or internally.

(b) Area corrosion. Area corrosion, which may occur externally or internally, is that which has caused a general reduction in wall thickness over an area not exceeding 20% of the container surface. It excludes other types of corrosion described in (c), (d), (e) and (f).

(c) Chain pitting and line corrosion. Chain pitting and line corrosion may occur along the length, or part of the length, of a container, and may also extend round the circumference of the wall. They may be external or internal and are usually made up of a series of pits or corroded cavities in the wall thickness. Generally, they are of a limited width.

(d) Channel corrosion. Channel corrosion can be a more concentrated form of line corrosion or a channel formation in the metal. It may be formed externally by the metal being in contact with a corrosive substance or internally by the passage of gas over the surface of the metal.

(e) Isolated pits. Isolated pits are a pitting of the metal, in isolated areas, and may occur externally or internally.

(f) Crevice corrosion. Crevice corrosion is a circumferential corrosion occurring, for example, at the junction of the wall and foot ring.

A.3 Evaluation of Corrosion

A recommended procedure for evaluating container corrosion is given in A.3.1 to A.3.3.

A.3.1 If the bottom of the defect can be seen it may be possible, with judgement and experience, to evaluate it sufficiently to pass or fail the container for that defect. The limits set in A.4.1 to A.4.5 shall be used as a guide on allowable wall thickness.

A.3.2 If the defect is borderline, or gives rise to uncertainty, set the container aside for more detailed examination, using specialist equipment if necessary.

A.3.3 Where the bottom of the defect cannot be seen, where its extent cannot be evaluated using specialist equipment, the container shall be destroyed in accordance with clause 3.4.

A.4 Rejection Limits

Defects in excess of those described in A.4.1 to A.4.5 are cause for rejection.

A.4.1 General corrosion. If the depth of penetration exceeds 10% of the original wall thickness or if the original metal surface is not recognizable. If corrosion is extensive in area the container shall be dealt with as specified in A.3.2 or A.3.3.

A.4.2 Area corrosion. If the depth of penetration exceeds 15% of the original wall thickness or if the original metal surface is not recognizable.

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A.4.3 Chain pitting, line corrosion and channel corrosion. If the total length of corrosion in any direction exceeds the circumference of the container, or if the depth of penetration exceeds 25% of the original wall thickness.

A.4.4 Isolated pit. Pits at a concentration greater than 1 per 500 mm2 of the surface area shall be classified as area corrosion. The depth of discrete pits of greater than 5 mm diameter shall not exceed 25% of the original wall thickness. Pits less than 5 mm in diameter shall be assessed, as far as practicable, to ensure that the remaining wall thickness is adequate for the duty envisaged for the container.

A.4.5 Crevice corrosion. If the depth of penetration exceeds 20% of the original wall thickness.

REFERENCES

Lâaire Liquide Seychelles (Ltd), Direction Technologie

Industrial Gas Committee Document 16/85/E

Indian Gazette Notification GSR 77

British Oxygen Company (Journal 1987)

BS 5430, Part I, 1977

BS 5430, Part II, 1977

BS 5430, Part I, 1990

BS 5430, Part III, 1990

______________

SEYCHELLES BUREAU OF STANDARDS

(STANDARD SPECIFICATION FOR

CONCRETE BLOCKS) NOTICE

[16th August, 2005. ]

1. This Notice may be cited as the Seychelles Bureau of Standards (Standard Specification for Concrete Blocks) Notice.

2. The Minister of Economic Planning and Employment declares the standard specification set out in the Schedule to be the mandatory standard specification for concrete blocks with effect from the date of publication of this Notice in the Gazette.

3. The Seychelles Bureau of Standards (Standard Specification for Concrete Blocks) Notice is hereby repealed.

SCHEDULE

TABLE OF CONTENTS

21

S.I. 63 of 1991S.I. 5 of 1999S.I. 38 of 2005

Foreword


1.1 Scope

1.2 Definitions

SECTION TWO : MATERIALS

2.1 Binder

2.2 Aggregates

SECTION THREE : REQUIREMENTS

3.1 Appearance

3.2 Cavities

3.3 Surfaces

3.4 Curing time

3.5 Dimentions

3.6 Strength

SECTION FOUR: SAMPLING, TESTING AND COMPLIANCE WITH THE STANDARD

4.1 General

4.2 Sampling procedure

4.3 Testing

4.4 Compliance with the standard

SECTION FIVE : CLASSIFICATION AND CERTIFICATION

5.1 Classification

5.2 Certification

APPENDIXA: MEASUREMENT OF DIMENSIONS AND THEIR TOLERANCES

A.1 Length and height

A.2 Thickness

APPENDIX B: DETERMINATION OF CRUSHING STRENGTH OF BLOCKS

B.1 Apparatus

22

B.2 Test procedure

B.3 Calculation of crushing strength

TABLES

Table 1 Dimensions of concrete block

Table 2 Scale of sampling and acceptance number

Continuation of Table of Contents

FIGURES

Figure 1 GO/NOT GO gauges for checking length and height of blocks

Figure 2 Checking and measuring dimensions of blocks

References


1.1 Scope

This standard specification specifies the materials, tolerances and minimum performance levels for concrete blocks. It covers solid, cellular and hollow blocks not exceeding 650 mm in any work size dimension.

Units in which the height exceeds the length or six times the thickness are outside the scope of this standard specification.

Concrete paving blocks are also outside the scope of this standard specification.

1.2 Definitions

For the purpose of this standard specification the following definitions apply:

1.2.1 Acceptance Number (Ac) shall mean the maximum number of defective units permitted in the sample.

1.2.2 Batch shall mean the product unit of the same size, type and style which has been manufactured under essentially the same conditions.

1.2.3 Binder shall mean material used for the purpose of holding solid particles together in a coherent mass.

1.2.4 Blocks shall mean a walling unit (other than a unit used for bonding e.g. half block) greater than 215 mm, 100 mm and 65 mm being the dimensions of a brick. The height of block shall not exceed either its length or six times its thickness to avoid confusion with slabs or panels.

1.2.5 Bureau shall mean the Seychelles Bureau of Standards.

23

1.2.6 Cellular Block shall be deemed to be cellular if it has one or more moulded holes or cavities which do not effectively pass through the block and the solid material is between 50% and 75% of the total designed volume of the block calculated from the overall dimension.

1.2.7 Crushing Strength shall mean the value of the maximum load carried by a block per gross area when tested in accordance with Appendix B.

1.2.8 Coordinating size shall mean a size of the space, bounded by coordinating planes, allocated to a component including the allowance for joints and tolerance.

1.2.9 Height shall mean the vertical dimension perpendicular to the base when the unit is used in its normal aspect.

1.2.10 Hollow Blocks shall mean block having one or more large holes or cavities which pass through the block and the solid material is between 50 % and 75 % of the total designed volume of the block calculated from the overall dimensions.

1.2.11 Natural aggregate shall mean a granular material obtained by processing natural materials.

1.2.12 Plastering shall mean the process of applying a mixture generally used to obtain a surface finish.

1.2.13 Rendering shall mean the process of applying render.

1.2.14 Solid Blocks shall mean block of which the solid material is not less than 75 % of the total designed volume of the block calculated from the overall dimensions.

1.2.15 Tolerance limit shall mean a permissible variation of the specified value of a quantity.

1.2.16 Work Size shall mean the size of a building component specified for the manufacture to which its actual size should conform within specified permissible deviation.

SECTION TWO : MATERIALS

2.1 Binder

Blocks shall be made using one or more of the following materials complying with the requirement of the appropriate British Standards or any other equivalent standard:

Type of binder Standards to be complied with

Ordinary and Rapid

Hardening Portland

Cement BS EN 197-1

Sulphate Resisting

Portland Cement BS 4027

24

Lime BS EN 459-1, or, for autoclave blocks, other types of lime provided that they are finely ground to prevent inclusion of lumps in the finished products.

The proportion by mass of lime to cement shall be within the following limits, unless the units are autoclave:

Lime less or equal to 10 %, cement greater or equal to 90 %.

2.2 Aggregates

Concrete blocks shall be made using one or more of the aggregates as specified in Seychelles Standard SS15.

The aggregates at the mixer shall be clean and free from deleterious matter so as to not to impair the strength of the block.

Where the aggregate or cement is not covered by this standard specification, the manufacturer of the blocks shall satisfy the Seychelles Bureau of Standards with authoritative evidence that the blocks are suitable for the purpose for which they are to be used.

SECTION THREE: QUALITY REQUIREMENT

3.1 Appearance

Blocks shall be sound, free from cracks, broken edges, honey combing and other defects that would interfere with the proper placing of the blocks or impact the strength or performance of construction.

3.2 Cavities

The total width of cavity in any block, measured at right angles to the faces of the blocks as laid in the wall shall not exceed 65 % of the thickness of the block and the volume of cavity in the block shall not exceed 50 % of the gross volume of the block.

3.3 Surfaces

The vertical faces of the blocks may be tongued or grooved. When intended for use with rendering or plastering, the surface characteristics of the blocks shall be such as to provide a satisfactory bond.

3.4 Curing Time

Blocks shall be cured for a minimum period of 8 days after manufacture. During this period of time, the blocks shall be kept moist and protected from extremes of conditions of temperatures, relative humidity and wind exposure.

3.5 Dimensions

25

The dimensions of concrete blocks shall be the sizes specified in columns 2 and 3 of Table 1 of this standard taking into consideration the tolerances specified in clause 3.5.1.

Table 1 – Dimensions of concrete blocks

Length x Height Thickness

Coordinating size(mm) Work size(mm) Work size(mm)

460x210 450x200 100, 150, 200

3.5.1 Dimensional tolerances

The maximum dimensional tolerance for concrete blocks measured in accordance with Appendix A shall be as follows:

Dimensions Maximum tolerance

Length +10mm - 5mm

Height +3mm - 5mm

Thickness (average) +4mm - 4mm

Within these dimensional deviations, the bedding surfaces shall be perpendicular to the adjacent faces.

3.6 Strength

3.6.1 Hollow blocks meeting the definition of 1.2.10 and tested in accordance with Appendix B of this standard shall have a crushing strength of not less than 3.5N/mm².

3.6.2 Solid blocks meeting the definition of 1.2.14 and tested in accordance with Appendix B of this standard shall have a crushing strength of not less than 7.0N/mm².

SECTION FOUR : SAMPLING, TESTING AND COMPLIANCE WITH THE STANDARD

4.1 General

4.1.1 Sampling for compliance of this standard shall be carried out after the minimum curing time specified in 3.4 has elapsed or immediately before the delivery of blocks.

26

4.1.2 Sampling shall be done in accordance with the sampling procedure specified in clause 4.2 making use of the sampling plan specified in Table 2 of this standard specification.

4.1.3 Units of blocks damaged during transit shall not be selected for test.

Table 2 : Scale of sampling and acceptance number

Lot Size

(N)

Sample size

(n)

Acceptance number

(Ac)

Up to 500 units

501 up to 1000

1001 up to 3000

3001and above

5

8

13

20

1

1

2

2

4.2 Sampling procedure

4.2.1 Random sampling

Whenever possible, the random sampling method shall be used, in which every block in the consignment has an equal chance of being selected for the sample. The appropriate number of blocks shall be selected at random from positions throughout the consignment without any consideration being given to the quality of those selected.

This sampling method is normally convenient only when the blocks forming the consignment are being moved in a loose form from one place to another or when they have been split into a large number of small stacks, e.g on scaffolding awaiting for laying.

4.2.2 Representative sampling

When random sampling is impracticable or not convenient, e.g. when the blocks form a large stack or stacks with ready access to only a limited number of units, a representative sampling procedure shall be used as detailed in 4.2.2.1 and 4.2.2.2 below.

4.2.2.1 Sampling from a stack

The consignment shall be divided into at least six real or imaginary sections, each of similar size. An equal number of not more than four (4) blocks shall be selected at

27

random from within each section in order to give the required number without any consideration being given to the quality of those selected.

NOTE: It will be necessary to remove some sections of the stack or stacks in order to gain access to blocks within the body of such stacks when taking samples.

4.2.2.2 Sampling from a consignment formed of bonded packs

At least six packs shall be selected at random from the consignment. From each pack an equal number of not more than four (4) blocks shall be sampled at random in order to give the required number of units without any consideration being given to the quality of those selected.

4.3 Testing

4.3.1 Each block selected for test shall be examined individually for the requirements of clauses 3.1, 3.2 and 3.3. The units failing to meet one or more of the applicable requirements shall be considered as defectives and the number of defectives shall be recorded.

4.3.2 Measurement of dimensions of blocks shall be done in accordance with Appendix A of this standard and the results shall be recorded. The blocks that do not meet any of the dimensional requirements specified in clause 3.5 shall be considered as defective and the number of defectives shall be recorded.

4.3.3 Test for individual crushing strength of blocks shall be done in accordance with Appendix B of this standard and results shall recorded. Blocks that do not meet the requirements of clause 3.6 of this standard shall be considered as defectives and the number of defectives shall be recorded.


4.4.1 All manufacturers of blocks shall ensure that sample of each batch of blocks manufactured are tested and that the rest results meet the requirements of this standard before sale to the general public.

4.4.2 A batch of block shall be declared as conforming to the requirements of this standard specification if the number of defective units recorded in clause 4.3 do not exceed the Acceptance Number (Ac) in the third column of Table 2 of this standard.

SECTION FIVE: CLASSIFICATION AND CERTIFICATION

5.1 Classification

5.1.1 Manufacturers shall properly classify, store and label their blocks according to their types and designations.

5.1.2 Manufacturers shall ensure that each batch of blocks is properly marked to identify the status, the type, the date of manufacture and the curing date of the consignment.

5.1.3 Manufacturers shall ensure that the latest test result certificates are prominently displayed at the point of sale.

28

5.2 Certification

The following particulars relating to concrete blocks made in accordance with this standard specification shall be clearly indicated on the delivery note, invoice or supplier’s certificate supplied with a consignment of block:

(a) The type of the blocks, i.e whether solid, hollow or cellular;

(b) Thickness of the blocks;

(c) The name, trade mark or other means of identification of the manufacturer;

(d) The strength of the blocks in N/mm²; and

(e) The date of manufacture of the blocks.

APPENDIX A: MEASUREMENT OF DIMENSIONS AND THIR TOLERANCES

A.1 Length and height

A1.1 Apparatus

A1.1.1 Gauge appropriate to the specified length and height of the block.

A.1.1.2 External calipers

A.1.1.3 A rule or measuring tape graduated to 1mm for use with the calipers.

NOTE: Measuring equipment in use should possess valid calibration certificate at all times.

A.1.2 Test procedure

A.1.2.1 Before measuring a block, remove any flashing. Check the compliance of each block sampled as specified in clause 4.2, for the length at the four corners of the end faces as shown in figure 2(a). Ignore any tongue or groove as shown in figure 2(d) and 2(e) respectively. Similarly, check the compliance of each blocks for height at the six positions shown in figure 2(b).

A.1.2.2 Record each result as pass or fail taking into consideration the tolerance limit specified in clause 3.5.1.

A.2 Thickness

Measure the thickness of each block at the six positions shown in figure 2(c) to the nearest millimeter.

Record each result.

Calculate the average of the six results to the nearest millimeter and record the result as pass or fail taking into consideration the tolerance limit specified in sub-clause 3.5.1.

29

All dimensions are in millimetres.

NOTE 1. ‘x’ is the specified dimension of the block plus 3 mm, and ‘y’ is the specified dimension of the block minus 5 mm.

NOTE 2. Keys are used for keeping fittings at both ends in the same plane.

Figure 1 GO/NOT GO gauges for checking lenght and height of blocks

30

APPENDIX B: DETERMINATION OF CRUSHING STRENGTH OF BLOCKS

B.1 Apparatus

B.1 Capping plates

B.1.1 A steel clapping plate at least 25 mm longer and wider than the block to be capped, not less than 19 mm thick.

B.1.1.2 The steel plate described in B.1.1.1 shall be adequately supported over most of its area (e.g. in a bed or mortar) to prevent excessive deflection.

B.1.2 A square or a vertical level

B.1.3 Testing machine

A testing machine of sufficient capacity for the test and equipped with a means of providing the rate of loading specified in B.2.2 and with a pacing device. The capacity of the machine shall be such that the expected ultimate load on a specimen is greater than one-fifth of the machine scale range. The machine shall possess a valid calibration certificate at all time during test.

The testing machine shall be equipped with two permanent ferrous bearing platens that shall normally be as large as the bedding faces of the specimen being tested. Where the permanent platens of the testing machine are not as large as the specimen to be testing machine are not as large as the specimen to be tested, auxiliary bearing platens having dimensions not less than those of the specimen shall be used. These shall not be fixed to the permanent platens, but shall be brought to bear in intimate contact, care being taken to exclude dirt from the interfaces.

The upper machine platen shall be able to align freely with the specimens as contact is made but the platens shall be restrained by friction or other means from tilting with respect to each other during loading.

The lower compression platen shall be a plain, non-tilting bearing block.

The auxiliary platen that will bear on the upper surface of the specimen shall be attached loosely to the testing machine by flexible wire or chain to prevent it from falling if the specimen collapses suddenly under load.

The testing face of the main platen and both faces of each auxiliary platen shall be hardened and shall have:

(a) a flatness tolerance of 0.05 mm;

(b) a parallelism tolerance for one face of each platen with respect to the other face as datum of 0.10 mm;

32

The permanent platens shall be solid and not less than 50 mm thick, unless blocks of specified compressive strength of 7.0 N/mm² or more are to be tested, in which case the platens shall be not less than 75 mm thick.

Auxiliary platens shall be solid and have a thickness not less than two-thirds the amount by which they overhang the permanent platens unless blocks of specified compressive strength of 7.0 n/mm² or more are to be tested, in which case the thickness shall not be less than the overhang. In no case shall the auxiliary platen overhang the permanent platen by more than 75mm.

B.2 Test Procedure

B.2.1 Wipe the bearing surface of all the platens clean and remove any loose grit or other material from the surfaces of the specimen, which are to be in contact with the platens. Place the rubber plate in the machine without packing so that its centre of mass coincides with the axis of the machine. Where appropriate, set the zero of the machine with the ram slowly rising and the specimen in position, but without any platen in contact with the top of the specimen. If required, position the upper auxiliary the ram to bring the auxiliary platen or specimen into contact with the machine platen.

B.2.2 Apply the load without shock and increase it continuously at a rate of 5 + 0.5 N/mm² per minute for blocks of specified strength less than or equal to 7 N/mm²or 10 + 1 N/mm² per minute, for blocks of specified strength greater than 7 N/mm².

Maintain the appropriate loading rate, as far as possible, right up to failure.

B.2.3 Record the maximum load in newtons per millimeter square carried by the specimen during the test.

B.3 Calculation of crushing strength

B.3.1 Calculate to the nearest millimeter the average value of the three top thicknesses and the average value of the three bottom thicknesses, measured in accordance with Appendix A for each specimen.

B.3.2 Obtain the gross area of the specimen by multiplying the lesser of the two thicknesses from B.3.1 by the specified length of the block.

B.3.3 Obtain the crushing strength of the specimen by dividing the maximum load from B2.3 by the gross area from 3.2.

REFERENCES

Standards publications referred to

BS EN 197-1: 2000 Specification for Portland cement

BS EN 459-1: 2001 Specification for Building Limes

BS 4027 : 1996 Specification for Sulphate-resisting Portland cement

BS 6073-1:1981 Precast concrete masonry units

33

Part 1 Specification for pre-cast concrete masonry units

SS 15 : 1993 Specification for Aggregates from Natural Sources.

BS EN 771-4: 2003 Specification for Autoclaved aerated concrete masonry units

Acknowledgment is made to the use of information from the above standards.

_______________

Seychelles Bureau of Standards (Standard Specification for

Corrugated Iron Zincated Sheets for General Purposes) Notice

1. This Notice may be cited as the Seychelles Bureau of Standards (Standard Specification for Corrugated Iron Zincated Sheets for General Purposes) Notice and shall come into operation on such date as the Minister may, by notice published in the Gazette appoint.

2. The President, being the Minister responsible for the administration of Standard the Seychelles Bureau of Standards Act, hereby declares the Specification standard specification set out in the Schedule to be a mandatory for Corrugated standard specification for Corrugated Iron Zincated Sheets for Iron Zincated General Purposes.

SCHEDULE (Reg. 2)

TABLE OF CONTENTS


1.1 Scope

1.2 References

1.3 Method of Manufacture

1.4 Quality of Hot-Dip Zinc Coated Steel Sheet

1.5 Freedom from Defects

SECTION TWO : PROFILES, DIMENSIONS AND TOLERANCES

2.1 Profiles

2.2 Pitch and Depth of Corrugation

2.3 Indication of Dimensions

2.4 Nominal Thicknesses and Tolerances

2.5 Tolerances on Width

2.6 Tolerances on Length

SECTION THREE : SAMPLING, TESTING AND MARKING

34

S.I. 24 of 1993

3.1 General

3.2 Sampling and Testing

3.3 Retests

3.4 Testing Premises

3.5 Inspection

3.6 Marking

SECTION FOUR : COATING MASS AND GENERAL INFORMATION

4.1 Coating Mass per Unit Area

4.2 Coating Adherence

4.3 Curved Sheet

4.4 Ordering Thickness

4.5 Information to be Supplied by the Purchaser

APPENDIX A : TEST FOR DETERMINING MASS PER UNIT AREA OF ZINC COATING

A.1 Principle

A.2 Stripping Solution

A.3 Test Procedure

TABLES

Table 1 : Nominal Thicknesses and Tolerances

Table 2 : Tolerances on Width

Table 3 : Tolerances on Length

Table 4 : Minimum Coating Mass per Unit Area

REFERENCES

______________


1.1 Scope

This standard specifies the materials, profiles and dimensions of hot-dip zinc coated corrugated steel sheets for general purposes. Though this standard covers the most commonly used profile of 76.2 mm corrugation (see clause 2.1), other profiles that provide adequate strength for the

35

particular loading conditions and for the purlin spacing adopted may be used. The manufacturing process of the sheets is outside the scope of this standard.

1.2 References

The titles of the standard publication referred to in this standard are given at the end of the Schedule.

1.3 Method of Manufacture

The processes used for making the steel and manufacturing the product are left to the discretion of the producer and the manufacturer.

1.4 Quality of Hot-Dip Zinc Coated Steel Sheet

The steel shall be made in accordance with the accepted current practices of the respective country of origin and shall be manufactured from good quality hot-dip zinc coated steel sheets. For design purposes it may be assumed, that the lower yield strength will not be less than 210 N/mm2. If material with specified mechanical properties is required, reference shall be made to the appropriate quality in ISO 3575.

1.5 Freedom from Defects

The zinc coating shall be free from obvious harmful contamination and defects.

SECTION TWO: PROFILES, DIMENSIONS AND TOLERANCES

2.1 Profiles

The most commonly used profile is the 76.2 mm corrugation with either eight or ten corrugations per sheet. The profiles are shown diagrammatically in Figure 1. Any profile, however, that provides adequate strength for the particular loading conditions and for the purlin spacing adopted may be used.

2.2 Pitch and Depth of Corrugation

The pitch and depth of corrugation for the 76.2 mm profile shall be as shown in Figure 2.

2.3 Indication of Dimensions

The dimensions of corrugated sheets shall be indicated by those of the sheets prior to corrugating and shall be expressed in millimetres for thickness, width and length. The thickness of the corrugated sheets shall be indicated by the nominal thickness of the sheets prior to corrugating. This shall be regarded as the nominal thickness.

2.4 Nominal Thicknesses and Tolerances

The nominal thicknesses and their tolerances of corrugated sheets shall be as specified in Table 1.

Table 1 : Nominal Thicknesses and Tolerances (including coating on both sides)

36

NOTE 1. Thickness may be measured at any point on the material not less than 40 mm from one edge.

NOTE 2. If thickness is specified as a minimum with tolerances all plus, the permitted variation is double the tolerance values. Similarly, if thickness is specified as maximum, with tolerance all minus the permitted variation is double the tolerance values. The tolerances applicable shall be those for the mean of the range specified or implied.

2.5 Tolerances on Width

The tolerances on width of corrugated sheets shall be as shown in Table 2.

Table 2 : Tolerances on Width

2.6 Tolerances on Length

The tolerances on length of corrugated sheets shall be as shown in Table 3.

Table 3 : Tolerances on Length

Ordered Length (mm) Tolerances

< 3000 - 0 mm

+ 8 mm

> 3000 - 0 mm

+ 0.30%

SECTION THREE : SAMPLING, TESTING AND MARKING

3.1 General

The supplier (importer) may make such tests as he deems necessary to ensure that the material complies with the requirements of this standard.

The purchaser may verify the mass (per unit area) of coating by the method described in clause 3.2.

3.2 Sampling and Testing (Coating mass tests)

Sampling and testing shall be carried out as follows :

The test shall be performed on one sheet per lot, or fraction thereof, of the same quality, thickness and number of corrugations.

A lot shall consist of 20 t (tonnes) or a fraction of 20 t of the same quality, thickness and number of corrugations.

NOTE : Example: A consignment of 55 t is three lots, two of 20 t and the third of 15 t.

37

The test shall be performed on three samples, one taken from the mid-width of the sheet and the other two taken from positions at least 25 mm from each side edge. The test method shall be as given in Appendix A. The result of the test shall be expressed as:

(a) the average of the three determinations ('triple spot test') and

(b) the minimum coating mass found on any one of the three samples ('single spot test').

3.3 Retests

If a test sample fails to meet the coating mass requirements of this standard, two further test samples shall be taken at random from the same lot and the test repeated. If one of these test samples fails to comply with the specified requirements, the material shall be deemed not to comply with the requirements of this standard.

3.4 Testing Premises

All tests are to be carried out at the Seychelles Bureau of Standards laboratory. No tests are to be carried out on the supplier's premises.

3.5 Inspection

The Seychelles Bureau of Standards inspector or his representatives shall have reasonable access to the storing facility of the supplier for the purpose of inspection.

It is desirable that the inspector or his representatives use the supplier's records available wherever possible, but the inspector shall have all reasonable facilities to determine that the product is being supplied in accordance with the requirements of this standard.

3.6 Marking

The product has to be suitably identified to indicate the quality. Should the product not be branded, the supplier shall provide reasonable specifications to indicate the quality.

SECTION FOUR : COATING MASS AND GENERAL INFORMATION

4.1 Coating Mass per Unit Area

The minimum value of the coating mass shall be as given in table 4 for the single and triple spot test when tested as described in clause 3.2.

Table 4 : Minimum Coating Mass per Unit Area

Coating Type Coasting Mass per unit Area

Zinc coating (including both sides)

a) Triple Spot Test Single Spot Test

g/m² g/m²

G350

38

(Z 35) 350 min 300 min

G450

(Z 45) 450 min 385 min

NOTE 1. The mass of zinc coating is not always evenly divided between the two surfaces of the sheet or from edge to edge. However, it can normally be expected that not less than 40% of the specified minimum single spot test limit will be found on either surfaces.

NOTE 2. A zinc coating mass of 100 g/mÂ², including both sides, corresponds to a coating of approximately 7 micrometres on each side. This relationship should be used for guidance only.

4.2 Coating Adherence

The coating adherence shall be such that there is no flaking of the zinc coating after corrugating the sheets.

4.3 Curved Sheet

If curved sheet is required, the radius of curvature shall be agreed at the time of placing the order.

4.4 Ordering Thickness

The overall thickness (including the zinc coating) of the sheets shall be specified in millimetres. The minimum thickness (including the zinc coating) of the sheets shall be 0.475 mm (SWG 26).

4.5 Information to be Supplied by the Purchaser

The following information shall be given in the enquiry and order to enable the manufacturer to supply the material required:

(a) the number of this Seychelles Standard i.e. SS17;

(b) the number of corrugations (see Table 2);

(c) the required dimensions: thickness and length;

(d) a reference to ISO 3575 if material with specified mechanical properties is required (see clause 1.4);

(e) the coasting mass (see clause 4.1 Table 4);

(f) whether the sheets are to be curved and the required radius of curvature (see clause 4.3);

(g) the packing instructions: marking requirements, bundle masses, number of sheets per bundle;

(h) whether branding is required (see clause 3.5).

39

The relevant information shall be given in the enquiry and order in the above sequence, e.g: SS17, 8/76.2 corrugations; 0.425 mm x 1800 mm, 350 g/mÂ², curved sheets to radius 1 m, 2 tonnes max bundles, branded.

APPENDIX A : TEST FOR DETERMINING MASS PER UNIT AREA OF ZINC COATING

A.1 Principle

Using a sample with a surface coated area of 5000 mmÂ² on each sides (total coated surface area 10,000 mmÂ²), the loss of mass, in grams, when the coating is dissolved multiplied by 200, will represent the zinc mass in grams per square metre of sheets, including both sides.

A.2 Stripping Solution

Dissolve about 3.2 g of antimony chloride (SbCL3) or 2 g of antimony oxide (SbO3) in 500 ml of concentrated hydro- chloric acid (HCL) (relative density = 1.19 g/ml). Dilute the solution with distilled water to 1000 ml.

A.3 Test Procedure

Where necessary, the sample should be degreased, with an organic solvent that does not attack the coating, and then dried.

Before stripping, determine the mass of the sample to an accuracy better than 1% of the presumed mass per unit area of the coating.

Measure the quantity of solution so that at least 10 ml of solution are available for each 1000 mmÂ² of the surface of the sample. Immerse the sample completely in the solution at room temperature and leave until the coating has completely dissolved. The end of the dissolution process can be recognized by the cessation of the originally brisk evolution of hydrogen. Rinse the sample in running water and, if necessary, brush to remove any loose substance that may be adhering to the surface. Dip in alcohol, quickly dry and again determine the mass to the previously stated accuracy.

IMPORTANT NOTE. Small amounts of the poisonous gas antimony hydride (SbH3) will be given off during the dissolution of the zinc and it is essential that stripping be carried out using adequate fume extraction.

REFERENCES


ISO 3575 Continuous hot dip zinc-coated carbon steel sheet of commercial, lock-forming and drawing qualities.

________________

Seychelles Bureau of Standards (Standard Specification for

Modified UHT and Modified Pasteurized Skimmed and

Full Cream Milk) Notice

40

S.I. 25 of 1994

[28th March, 1994]

1. This Notice may be cited as the Seychelles Bureau of Standards (Standard Specification for Modified UHT and Modified Pasteurized Skimmed and Full Cream Milk) Notice.

2. The Minister of Industry hereby declares the standard for specification set out in the Schedule to be mandatory standard UHT specification for Modified UHT and Modified Pasteurized modified Skimmed and Full Cream Milk.

SCHEDULE (paragraph 2)

SECTION ONE: GENERAL

1.1 Scope

1.2 Definition

SECTION TWO: ESSENTIAL COMPOSITION AND QUALITY FACTORS

2.1 Compositional Factors

2.2 Quality Factors

2.3 Food Additives

2.4 Sampling

2.5 Testing

SECTION THREE: HYGIENE

SECTION FOUR: LABELLING

4.1 The Name of the Product

4.2 List of Ingredients

4.3 Certification Mark

REFERENCES


1.1 Scope

This Standard specifies the necessary requirements, (composition and quality factors), sampling and test methods for:

(a) modified ultra heat treated full cream and skimmed milk;

(b) modified pasteurized full cream and skimmed milk.

1.2 Definitions

41

For the purpose of this Standard the following definitions apply:

1.2.1 Modified milk is a liquid mixture of any two or more of the following:

(a) full cream milk;

(b) concentrated full cream milk;

(c) dried full cream milk;

(d) skimmed milk;

(e) concentrated skimmed milk;

(f) dried skimmed milk;

(g) cream;

(h) butter milk;

(i) dried butter milk;

(j) milk fat;

(k) water.

1.2.2 Ultra heat treated milk or U.H.T. milk is milk that has been processed by subjecting the product to a temperature of not less than 132°C for not less than one second and aseptically packaging it in approved hermetically sealed packages.

1.2.3 Pasteurized milk is milk that has been heated to a temperature of not less than 72°C and retaining it at such temperature for not less than 15 seconds and immediately shock cooling it to a temperature below 4.5°C.

1.2.4 Full cream milk is milk from which milk fat has not been removed.

1.2.5 Skimmed milk is milk from which milk fat has been removed.

1.2.6 Potable water means water which is in accordance with the `WHO Guidelines for Drinking Water Quality'.



2.1.1 Full cream milk shall

(a) have a minimum milk fat content: 3.2% m/m;

(b) have a minimum milk solids non fat content: 8.5% m/m.

2.1.2 Skimmed milk shall

(a) have a maximum milk fat content; 1.5% m/m;

42

(b) have a minimum milk solids non fat content: 8.5% m/m.

2.2 Quality Factors

2.2.1 Pasteurized skimmed and full cream milk shall

(a) have a coliform count not exceeding 1 coliform per mililitre;

(b) have a standard plate count not exceeding 50,000 micro-organisms per mililitre.

2.2.2 Ultra heat treated milk shall show no microbiological growth.

2.3 Food Additives

2.3.1 The food additives shall be in accordance with the Codex Alimentarius Volume XIV, Ed. 1.

2.4 Sampling

2.4.1 For the purpose of this Standard, the International Standard (ISO) 5538, first edition "Milk and Milk Products - Sampling-Inspection by Attributes" shall be followed and the Acceptable Quality Level shall be established by the Inspection and Certification Section of the Bureau, with the agreement of the interested parties.

2.5 Testing

2.5.1 The determination of coliforms shall be performed in accordance with the International Standard (ISO) 5541/1: Milk and Milk Products - Enumeration of Coliforms - Part 1 : Colony Count Technique at 30°C or International Standard (ISO) 5541/2: Milk and Milk Products - Enumeration of Coliforms - Part 2: Most Probable Number Technique at 30°C.

The standard plate count evaluation shall be performed in accordance with the International Standard (ISO) 4833: Microbiology-General Guidance for Enumeration of micro-organisms-Colony Count Technique at 30°C.

2.5.2 The determination of fat content in full and skimmed milk shall be in accordance with the A.O.A.C.1 Method, 905.02, "Fat in Milk - Roese-Gottlieb Method - Final Action".

A.O.A.C. refers to a publication entitled `Official Methods of Analysis of the Association of Official Analytical Chemists'.

SECTION THREE: HYGIENE

The product covered by the provisions of this Standard shall be prepared and packed under strict hygiene conditions in accordance with the `Code of Practice for Hygiene Practice for Food Premises - SS3: 1991', recommended by the Bureau, by persons retaining a high degree of personal cleanliness in clean premises duly approved by the public health authorities and having an ample supply of potable water.

SECTION FOUR: LABELLING

In addition to the provisions of the Codex Standards and Guidelines for the labelling of Foods and Food Additives (CAC/Volume VI, Ed. 1) the following specific provisions apply:

43


4.1.1 The name of the product shall be "Modified UHT or Pasteurized

(a) Full Cream Milk, or

(b) Skimmed Milk", which ever designation is appropriate.

4.1.1.1 This shall be written on the label or attached to the container.

4.1.1.2 The nutritional composition of the product may be declared in Joule or calorie.


4.2.1 A list of ingredients containing the maximum or the minimum percentage of milk fat shall be written on the label, or attached to a package containing modified full cream milk or skimmed milk or modified UHT milk in the form:

MILK FAT MAXIMUM or MINIMUM (here insert maximum or minimum percentage) %'.

4.2.2 This list of ingredients shall also contain the minimum percentage of milk solids non-fat written in this form:

MILK SOLIDS NON-FAT MINIMUM (here insert minimum percentage) %'.

4.3 Certification Mark

The Certification Mark of the Seychelles Bureau of Standards may also be used, subject to prior approval from the Seychelles Bureau of Standards.

REFERENCES


Codex Alimentarius Volume XVI, Ed. 1, Part II, A-5

Australian Food Standards Code, 1987

Weights and Measures Act, 1980 (Seychelles)

A.O.A.C. 15th Edition, Volume II 1990

_________________

Seychelles Bureau of Standards (Toilet Soap) Notice

[12th July, 2004]

1. This Notice may be cited as the Seychelles Bureau of Standards (Toilet Soap) Notice.

2. The Minister declares the specification set out in the Schedule to be mandatory standard specification for toilet soap.

44

S.I. 20 of 2004

3. The Seychelles Bureau of Standards (Standard Specification for Toilet Soap) Notice, 1994 is hereby repealed.

SCHEDULE

Table of Contents

Section one: General

1.1 Scope

1.2 Definition

Section two: Requirements

2.1 General requirements

2.2 Chemical Characteristic

Section three: Sampling, Testing and Compliance with the Standard

3.1 Sampling

3.2 Testing


Section four: Packing and Labelling

4.1 Packing

4.2 Labelling

Appendix A: Determination of Texture and Stability

A.1 Principle

A.2 Reagents

A.3 Apparatus

A.4 Procedure

Tables

Table 1 Chemical requirements for toilet Soap

Table 2 Scale of sampling and acceptance number

References

Section one: General

1.1 Scope

45

This standard specification specifies the requirements, method of sampling and testing, packaging and labeling of toilet soap and compliance with the standard.

The standard specification is not applicable to carbolic soap or speciality soaps such as transparent soap, medicated soap, liquid soap or sea water soap.

1.2 Definitions

For the purpose of this standard, the following definitions apply:

1.2.1 Acceptance number shall mean the maximum number of defective units permitted in a sample.

1.2.2 Lot shall mean a number of cakes of toilet soap consisting of product unit of the same size and type, which has been manufactured under essentially the same condition.

1.2.3 Product unit shall mean one unit of the lot.

1.2.4 Soap shall mean the product formed by the saponification of or neutralization of oils, fats, rosins or their acids with organic or inorganic bases.

1.2.5 Saponification shall mean a chemical reaction permitting the separation of an ester into its constituent parts, acid and alcohol or possibly phenol, by the reaction of a base, with the formation of a salt from the acid. The saponification of fats produces soap.

Section Two: Requirements

2.1 General requirements

2.1.1 The soap shall be firm and of uniform texture and colour. The product shall remain hard and smooth when tested in accordance with the procedure specified in Appendix A of this standard.

2.1.2 It shall be free from objectionable odour.

2.1.3 It shall not cause skin irritation and shall have good lathering and cleansing properties.

2.1.4 It may contain perfume and colouring matter.

2.2 Chemical Characteristic

The toilet soap shall comply with the chemical requirements specified in Table 1 of this standard.

Table 1: Chemical requirements for Toilet Soap

Characteristics Requirements

% Mass/Mass

Test Method

1. Total fatty matter content, (minimum) 60 SS24

46

2. Total free alkali content as NaOH, (maximum)

0.3 SS24

3. Chloride content as NaCL, (maximum) 1.5 SS24

4. Free caustic alkali content as NaOH, (maximum)

or

5. Free fatty acids content, (maximum)

0.05 SS24

0.3 SS24

6. Matter insoluble in Ethanol content, (maximum)

2.5 SS24

NOTE 1: In the case of characteristics listed in item 2 to 6 of Table 1, the actual results obtained by the methods of test shall be recalculated in relation to the specified minimum total fatty matter by mean of the equation detailed below. Recalculation of the result is necessary because of the loss of moisture of the toilet soap on storage.

Recalculated result = Actual result x Specified minimum total fatty matter content

Actual total fatty content

Section three: Sampling, Testing and Compliance with the standard

3.1 Sampling

3.1.1 Sampling shall be carried out in accordance with the scale of sampling specified in Table 2 of this standard.

3.1.2 The number of product unit (n) to be sampled shall depend on the size of the lot (N).

Table 2: Scale of sampling and acceptance number

Lot Size Sample Size Acceptance Number

(N) (n) (Ac)

Up to 500 units 5 1

501 up to 1000 8 1

1001 up to 3000 13 2

47

3001 and above 20 3

NOTE 2: The number of product unit shall be selected at random from the lot. In order to ensure the randomness, start from any unit, count them as 1, 2, 3 up to N in a systematic manner selecting every K th product unit where K is the integral part of N divided by n, (k=N/n).

3.2 Testing

3.2.1 Testing for texture and stability shall be done in accordance with the procedure specified in Appendix A of this standard.

3.2.2 Testing of the chemical characteristics shall be done in accordance with the test methods specified in Table 1 of this standard.

3.2.3 Each selected product unit shall be examined individually for the requirement of clause 2.1 of this standard. The units failing to meet one or more of the applicable requirements shall be considered as defective and the number of defective units shall be recorded.

3.2.4 A composite sample shall be prepared from the units sampled for testing the requirements of Table 1 of this standard. The parameters of Table 1, which fail to meet the applicable requirements, shall be considered as defective and they shall be recorded.

3.2.5 Each unit selected in accordance with Table 2 shall be inspected for the packing and labeling requirements of clause 4.0 of this standard and the number of defectives shall be recorded.


3.3.1 A lot shall be declared as confirming to the requirements of this standard if the following conditions are satisfied.

3.3.1.1 The number of defective units recorded in 3.2.3 does not exceed the Acceptance Number (Ac) in the third column of Table 2 of this standard.

3.3.1.2 The composite sample specified in accordance with subclause 3.2.1 complies with all the chemical requirements specified in Table 1 of this standard.

3.3.1.3 Each unit selected in accordance with Table 2 complies with all the packing and labeling requirements of clause 4.0 of this standard.

Section Four: Packing and Labelling

4.1 Packing

4.1.1 The individual soap cake shall be suitably packed in wrapper to protect it from damage and/or deterioration.

4.1.2 Only soap from the same batch or lot shall be packed together in a container.

4.2 Labelling

48

4.2.1 The following information shall be legibly and indelibly marked on each wrapped cake of toilet soap in one or more of the official languages of this country.

(a) Name of the product;

(b) Brand name and recognized trade mark, if any;

(c) Name and address of manufacturer;

(d) Date of manufacture and/or batch identification;

(e) Net mass when packed.

Appendix A: Determination of Texture and Stability

A.1 Principle

Soap is immersed in distilled water, and allowed to dry at room temperature and then examined for any physical defects.

A.2 Reagents

A.2.1 Distilled water or water of equivalent purity.

A.3 Apparatus

Ordinary laboratory apparatus and in particular.

A.3.1 Beaker, 1 litre capacity;

A.3.2 Thermometer of 100°C±3°C

A.4 Procedure

A.4.1 Determination

A whole cake of soap is immersed in distilled water at 25° to 30°C contained in a vessel of 1 litre capacity for one hour. The cake is withdrawn from the water and allowed to dry at room temperature for 24 hours. The soap is then examined for the requirements of subclause 2.1.1 of the standard.

References

Standards Publications referred to:

BS1914:1990 Specification for Toilet soap

IS2888:1983 Specification for Toilet soap

MS12:1980 Specification for Toilet soap

SS23:1994 Specification for Toilet soap

49

SS24:1994 Method of Analysis for Toilet and Laundry Soap

Rev.1:1999

______________________

Section 24

Seychelles Bureau of Standards

(Standard Marks) Regulations

[21st June, 1993]

1. These Regulations may be cited as the Seychelles Bureau of Standards (Standard Marks) Regulations.

2. In these Regulations -

"applicant" means a person who applies to the Director for a permit under section 17(4) of the Act;

"standard mark" means the Standard Mark authorised under section 17 of the Act;

"commodity" means a commodity which conforms to a standard specification;

"permit-holder" means a person who holds a valid permit;

"practice" means a practice which conforms to a standard specification;

"process" means a process which conforms to a standard specification.

3. The standard mark shall be as set out in the First Schedule.

4. (1) Every application for a permit to use the standard mark shall be -

(a) made to the Director in the Form set out in the Second Schedule;

(b) accompanied by -

(i) the application fee specified in the Third Schedule;

(ii) a statement in such form as the Director may require giving details of the process, or the mode of production or manufacture of the commodity, for which the permit is sought, and of any scheme of supervision and control which the applicant maintains or uses, or proposes to maintain or use and which is designed to control, during the course of the process, production or manufacture, the quality of the process or of the commodity;

(c) signed by the applicant.

50

S.I. 39 of 1993

(2) Upon receipt of an application under subregulation (1) and before the grant of a permit, the Director may require the applicant -

(a) to produce evidence to his satisfaction that -

(i) the commodity, process or practice in respect of which a licence is sought conforms to the appropriate standard specification;

(ii) the applicant has in operation a scheme of supervision and control which will adequately ensure that every commodity, process or practice in respect of which a permit is sought shall conform to the appropriate standard specification;

(b) to provide all reasonable facilities to an inspector to inspect the premises of the applicant for the purpose of-

(i) verifying the evidence produced by the applicant;

(ii) selecting samples of the commodity for testing;

(iii) checking the process or the mode of production or manufacture of the commodity and the records relating thereto;

(iv) obtaining such other information as is relevant to the application;

(c) (i) to submit for a reasonable period of time samples of the commodity for testing or such instrument, equipment, apparatus or material as would enable the process to be tested by the Bureau or such other testing authority the Director considers appropriate;

(ii) to carry out such alterations in, or additions to, the scheme of supervision and control or the mode of production or manufacture in use or to be used by the applicant as the Director may think fit.

(3) The application fee tendered under subregulation (1) (b) shall in no circumstances be refunded.

5. (1) A permit granted by the Bureau under section 17(3) of the Act shall be in the Form set out in the Fourth Schedule.

(2) No permit shall be granted except on payment of the fee specified in the Third Schedule.

(3) Where the Bureau refuses to grant a permit, the Director shall forthwith communicate the decision in writing to the applicant.

(4) A permit may cover -

(a) a number of brand names;

(b) a number of related or allied products within the scope of different standard specifications, provided such grouping has been approved by the Director;

51

(c) more than one factory belonging to the same permit holder where the commodity is manufactured or the process is carried out, provided this has been approved by the Director.

(5) Every permit -

(a) shall be valid for a period of one year from the date of grant; and

(b) may be renewable on payment of the renewable application fee specified in the Third Schedule for a further period of one year.

(6) An application for the renewal of a permit shall -

(a) be made at least two months before its date of expiry;

(b) be treated as a fresh application for the purposes of regulation 4(2).

(7) The Director may, where he is satisfied that a permit has been destroyed, lost or defaced, issue to the permit-holder a duplicate permit.

(8) The Director General may, having regard to the nature, type and annual turnover of the business of an applicant, remit any portion of the annual permit fee specified in the Third Schedule.

6. (1) Subject to subregulation (2) a permit may be revoked or suspended suspension by the Bureau for any period within the validity of the permit if it a permit is satisfied that -

(a) the permit-holder uses the standard mark in respect of a commodity, process or practice which does not comply with the standard specification relating thereto; or

(b) the permit-holder has failed to provide reasonable facilities for inspection or testing; or

(c) the permit-holder has failed to comply with the conditions of the permit; or

(d) notwithstanding any other law, the permit-holder has contravened any of the provisions of this Act.

(2) The Bureau shall not revoke or suspend a permit unless it has -

(a) given the permit-holder 14 days notice in writing of his intention to revoke or suspend the permit, which notice shall specify the grounds of revocation or suspension; and

(b) considered any representations made by the permit-holder within the period of the notice.

(3) Where the Bureau has revoked or suspended a permit -

(a) the Director shall forthwith inform the permit holder by notice in writing of the revocation or suspension;

52

(b) the permit-holder shall forthwith discontinue the use of the standard mark and shall -

(i) take necessary steps to have the mark removed from any commodity or otherwise cancelled, defaced or erased;

(ii) return the permit issued.

7. (1) Every permit-holder shall

(a) before use, submit to the Bureau for approval, a facsimile of the standard mark intended to be used;

(b) place the standard mark in such a manner as to be easily visible as a distinct mark on the commodity or any container, wrapping or binding of the commodity;

(c) specify on the commodity, container, wrapping or binding in such a manner as to be easily and distinctly visible beneath or beside the mark -

(i) the number of the appropriate standard specification;

(ii) the name of the permit-holder;

(iii) the registered trade mark, if any.

(2) Every permit-holder shall -

(a) ensure that the commodity, process or practice in respect of which the standard mark is used conforms at all times to the standard specification;

(b) establish and maintain to the satisfaction of the Director, a system of control, including inspection and testing;

(c) maintain a complete and up to date record of the system of control, including inspection and testing for the purpose of establishing that control is consistently maintained;

(d) make available for inspection on demand by an inspector the record referred to in subparagraph (c);

(e) permit the removal of the record from his premises to the Bureau for closer scrutiny.

8. (1) An applicant who is aggrieved by a refusal of the Bureau to grant a permit may appeal in writing to the Minister within 14 days of the receipt of the decision.

(2) A permit-holder who is aggrieved by the suspension or revocation by the Bureau of the permit granted to him may appeal in writing to the Minister within 14 days of the receipt of the notice of revocation or suspension.

(3) The Minister may affirm or reverse the decision of the Bureau.

53

(4) The Bureau shall give effect to the decision of the Minister under subregulation (3).

FIRST SCHEDULE

(Regulation 3)

THE STANDARD MARK

SECOND SCHEDULE

(Regulation 4)

APPLICATION FOR LICENCE TO USE THE

STANDARD MARK

To

The Director


P.O. Box 648

Victoria

1. I/We, carrying on business at ................................................ .................................................................................................................................. (full business address) under the style of ............................................... ................................................................................................ (full name of applicant) hereby apply for a permit under the Seychelles Bureau of Standards Act to use the standard mark in respect of the commodity/process/practice which conforms to the standard specification.

Seychelles Standard Specification (s) listed below:

(a) *Commodity ..............................................................

Type ..........................................................................

Size ...........................................................................

(b) *Process/Practice .....................................................

(c) Related Seychelles Standard Specification (s)

No .............................. Title ........................

No .............................. Title ........................

2.(a) The Trade Mark(s) /Brand Name(s) used by us are as follows.

..................................................................................................

54

..................................................................................................

(b) I/We intend to apply the Standard Mark on or in relation to the commodity bearing the following Trade Mark(s) /Brand Name (s):

...................................................................................................

(c) Registration No. and Date of Trade Mark(s) /Brand Name(s) proposed to be covered under the Standard Mark.

..................................................................................................

3. The above practice/commodity/process is manufactured/ carried out by ..................................................................... (Name of factory) on the premises situated at ..................... ............................................................... (address).

4. In order to ensure that the said commodity conforms to the related Seychelles Standard Specification (s) -

I/We have in use/propose to use the Scheme and Supervision and Control described in the Statement attached hereto. Routine records of all the inspections and tests are being/will be kept in the form detailed in the statement. I/We further undertake to modify, amend or alter my/our Scheme of Supervision and Control to bring it in line with that which may be specified by you from time to time.

I/We have at present no Scheme of Supervision and Control in operation. I/We, however, undertake to put in operation any such scheme as recommended by the Bureau.

5. Should the permit be granted and as long as it will remain operative, I/We hereby undertake to abide by all the terms and conditions of the permit. In the event of the permit being suspended or revoked, I/We also undertake to cease with immediate effect the use of the standard mark on any commodity covered by the permit and to withdraw all relevant advertising matters and to take such other steps as may be necessary to fulfill the provisions of the Act and any regulations prescribed under it.

6. Dated this ...................... day of.......................................

One thousand nine hundred and .......................................

.......................................................................................

Signature ............................

Name ..................................

Designation .........................

(Name of Firm)

For and on behalf of .................................................................

..................................................................................................

55

SEAL OF FIRM

*Delete where not applicable.

THIRD SCHEDULE

(Regulations 4 and 5)

FEES

Matter in which fee may be taken Amount of fee

R

1. Application fee .... ... ... ... ... ... 500

2. Annual permit fee .... ... ... ... ... ... 2000

3. Renewal application fee ... ... ... ... ... 500

FOURTH SCHEDULE

(Regulation 5)

PERMIT FOR USE OF STANDARD MARK

A. GENERAL PARTICULARS

Permit No ................................................................................

Name of Permit-holder .............................................................

.................................................................................

Address of Permit-holder ..........................................................

............................. ..................................................

............................. ..................................................

Validity of Permit-holder .........................................................

............................. ..................................................

B. SCOPE OF PERMIT

The permit-holder may use the standard mark on or in respect of the commodity, process or practice set out in the first column which is in accordance with the related standard specification set out in the second column.

FIRST COLUMN SECOND COLUMN

Commodity/Process/Practice Seychelles Standard Specification

56

.............................................. ......................................

.............................................. ......................................

.............................................. ......................................

C. CONDITIONS.

The permit is issued subject to the conditions that:

1. The requirements of the Seychelles Bureau of Standards Act and the regulations made thereunder are duly complied with; and

2. The Scheme of Supervision and Control annexed to this permit is maintained;

3. The licence should not be transferable or assignable.

Dated this ................................... day of ........................ 19 .....

.................................................

(Director)


___________

Section 16(1)

Seychelles Bureau of Standards (Plain and Flavoured

Yoghurt) Notice

[1st July, 1997]

1. This Notice may be cited as the Seychelles Bureau of Standards ((Plain and Flavoured Yoghurt) Notice.

SCHEDULE

TABLE OF CONTENTS


1.1 Scope

1.2 Definitions


2.1 Flavoured and Plain Yoghurts


57

S.I. 45 of 1997S.I 9 of 2005

2.3 Quality Factors

SECTION THREE: ESSENTIAL RAW MATERIALS

3.1 Milk and Milk Products

3.2 Flavouring Foods and Ingredients

3.3 Essential Additions

3.4 Optional Additions

SECTION FOUR: FOOD ADDITIVES

SECTION FIVE : HYGIENE

SECTION SIX : SAMPLING AND TESTING

6.1 Sampling

6.2 Testing

SECTION SEVEN : LABELLING

References

APPENDICES

Appendix A : Determination of Lactobacilli and Streptococci


1.1 Scope

This Standard gives the essential composition, quality factors and microbiological standard for plain and flavoured yoghurt. The methods of sampling and testing are also included.

1.2 Definitions

For the purpose of this Standard the following definitions apply:

1.2.1 Flavoured yoghurt is a coagulated milk product obtained by lactic a fermentation through the action of Lactobaclillus butgaricus and Streptococcus thermophilus from milk and milk products as listed ins section 3.3, to which have been added flavouring foods or other flavouring ingredients listed in sub-section 3.2.

1.2.2 Plain yoghurt Same definition as for flavoured yoghurt, except that no flavouring foods or flavouring ingredients have been added.

1.2.3 Sugars mean any carbohydrate sweetening matter.

1.2.4 Potable water means water which is in accordance with the Standard for Quality of Drinking Water as declared by the Ministry of Health under the Public Health (Water Examination) Regulation, 1994.

58


2.1 Flavoured and Plain Yoghurts

The milk part of flavoured and plain yoghurt shall comply with the requirements for yoghurts as specified under sub-section 2.2.


2.1 Full cream yoghurt shall

(a) have a minimum milk fat content: 3.0% m/m,

(b) have a minimum milk solids non-fat content 8.2% m/m.

2.2 Partially skimmed yoghurt shall

(a) have a maximum milk fat content less than 3.0% m/m,

(b) have a minimum milk fat content more than 0.5% m/m,

(c) have a minimum milk solids non-fat content: 8.2% m/m.

2.3 Skimmed yoghurt shall

(a) have a maximum milk fat content: 0.5% m/m,

(b) have a minimum milk solids non-fat content: 8.2% m/m.

2.4 Full cream, partially skimmed and skimmed yoghurt shall have a pH value not less than 4.2 and not greater than 4.5.

2.3 Quality Factors

2.3.1 Plain and flavoured yoghurt shall

(a) have a coliform count not exceeding 10 colonies per gram,

(b) have a yeasts and moulds count not exceeding 200 per gram,

(c) have cultures of lactobacillus bulgaricus in excess of I O' CFU per ml,

(d) have cultures of streptococcus thermophilus in excess of 101 CFU per ml.

2.3.2 Yoghurt shall be free from infectious agents and micro-organisms and their toxins.

SECTION THREE: ESSENTIAL RAW MATERIALS

3.1 Milk and Milk Products

- Pasteurized milk or concentrated milk, or

- Pasteurized partly skimmed milk or concentrated partly skim milk or

59

- Pasteurized skimmed milk or concentrated skimmed milk,

- Pasteurized cream, or

- Milk powder, skimmed milk powder, or

- A mixture of two or more of these products.

3.2 Flavouring Foods and Ingredients

Natural flavouring ingredients such as fruits (fresh, canned, quick frozen powdered), fruit puree, fruit pulp, jam, fruit syrup, fruit juice, honey, chocolate cocoa, nuts, coffee, spices and other harmless natural flavouring foods.

3.2.1 All natural flavouring ingredients added after pasteurisation shall of from pathogens and toxins.

3.3 Essential Additions

Cultures of Lactobacillus bulgaricus and streptococcus then-nophilus

3.4 Optional Additions

- Sugars,

- unfermented buttermilk, concentrated whey, whey power, whey proteins, edible casein, caseinates manufactured from pasteurized products,

- cultures of suitable lactic acid producing bacteria in addition those in sub-section 3.3,

- harmless natural colouring agents.

SECTION FOUR: FOOD ADDITIVES

The food additives used shall be in accordance with the Codex Alimentarius (Volume XIV, Ed. 1).

SECTION FIVE : HYGIENE

The product covered by the provisions of this Standard shall be prepared and packed under strict hygienic conditions in accordance with the SS3 : 1991 - Code of Practice for Hygienic Practice for Food Premises recommended by the Bureau, by persons retaining a high degree of personal cleanliness in clean premises duly approved by the public health authorities and having an ample supply of potable water.

SECTION SIX: SAMPLING AND TESTING

6.1 Sampling

61.1 For the purpose of this Standard the International Standard (ISO) 8197, first edition "Milk and Milk Products- Sampling-Inspection by Variables" shall be followed and the Acceptable Quality Level shall be established by the Standardisation Division of the Bureau, with the agreement of the interested parties.

60

6.2 Testing

6.2.1 The determination of coliforms shall be performed in accordance with the International Standard (ISO) 5541/1 : Milk and Milk Products Enumeration of Coliforms - Part 1 : Colony Count Technique at 30 °C or International Standard (ISO) 5541/2: Milk and Milk Products Enumeration of Coliforms – Part 2: Most Probable Number Technique at 30 °C.

6.2.2 The determination of yeasts and moulds shall be performed in accordance with the International Standard (ISO) 7954, 1987 (E): Microbiological - General Guidance for Enumeration of Yeasts and Moulds.

6.2.3 The determination of fat content in plain and flavoured yoghurt shall be performed in accordance with the A.O.A.C.' method, 905.02,"Fat in milk - Roese-Gottlieb Method - Final Action".

6.2.4 Tests for Lacrobacilli and streptococci shall be done as per Appendix A for the requirements stated in 2.3.1 (c) and (d).

' A. 0.A. C. refers to, a publication entitled 'Official Methods of Analysis of the Association of Official Analytical Chemists'.

SECTION SEVEN: LABELLING

The following information shall be clearly marked on the container or to a label attached to the containers

7.1 The name of the Product shall be flavoured or plain yoghurt whichever designation is appropriate, subject to the following provisions:

7.2 Yoghurt with not less than 3.0% m/m milk fat content should be design as full cream yoghurt.

7.3 For yoghurt with less than 3.0% m/m milk fat but with more than 0.5% m/m milk fat the designation shall be partly skimmed yoghurt.

7.4 Accompanying the name of the food shall be a milk fat statement in multiples of 0.5% , e.g. 1.0%, 2.0% etc., which is closest to the actual milk fat content of the yoghurt.

7.5 For yoghurt with less than 0.5% m/m milk fat content the designation shall be skimmed yoghurt.

7.6 The name and address of the manufacturer.

7.7 Trade name if any.

7.8 Net weight of packed content as per the Weights and Measures Ac 1980.

7.9 All ingredients in descending order of proportion.

7.10 The use by date of the Yoghurt.

7.11 The Storage instructions.

61

APPENDIX A: DETERMINATION OF LACTOBACILLI AND STREPTOCOCCI

A.1 Procedure

One millilitre of the samples of yoghurt or starter culture are added to

Molten, cooled L-S

Differential Medium, thoroughly mixed and plates poured.

Dilutions can be made in 0.1 % w/v peptone solution and equal volume.

added to double-strength L-S Medium.

The medium is incubated at 43°C for 48 hours. Both total viable counts and differential counts may be studied.

Organism Colony Appearance (After 48 hours)

Lactobacillus species Irregular red, rhizoidal colonies, 1.0- 1.5mm diameter,

surrounded by a white opaque zone.

Streptococcus species Round or oval red colonies, 0.2-0.5mm diameter, surrounded by small clear zone.

A.2 Procedure for preparation of L-S Differential Medium

Suspend 63.3g in 1 litre of distilled water. Bring to the boil to dissolve completely. Sterilize by autoclaving at 121°C for 15 minutes. Cool the sterile medium to 50°C. Just prior to use add stock solution

(1) 100ml of a 10% w/v antibiotic free skim milk powder, sterilized by autoclaving at 121°C for 5 minutes.

(2) 10ml of 2% w/v triphenyltetrazolium chloride solution, sterilized by filtration.

These solutions should be warmed to 50°C before adding them to the, base medium.

Mix thoroughly before use.

A.3 Precautions

It is important that the skim milk powder used is free from antibiotics. Check new batches of skim milk before routine use.

The medium is best freshly prepared but it should be protected from light prior to inoculation

REFERENCES

Standards publications Referred to

62

Codex Standard 1984 Codex Alimentarius Volume XVI Ed. I Part 11, A-5, Standard for Yoghurt (yoghurt) and Products Heat Treated after Fermentation.

Codex Standard Codex Alimentarius Volume VI, Ed.1, Standard and Guidelines for the Labelling of Foods and Food Additives.

Australian Foods Standards Code, 1987 A.O.A.C. 15th Edition, Volume 11 1990

Public Health (Water Examination) Regulations, (S.I. 44 of 1994 Schedule 1)

________________________

Section 16(1)

Seychelles Bureau of Standards (Modified Ultra Heat

Treated and Pasteurized Milk) Notice

[9th August, 1999]

1. This Notice may be cited as the Seychelles Bureau of Standards (Modified Ultra Heat Treated and Pasteurized Milk) Notice.

2. The Minister declares the standard specification set out in the Schedule to be the mandatory standard specification for modified ultra heat treated and modified pasteurized skimmed, partly modified skimmed and full cream milk.

SCHEDULE

TABLE OF CONTENTS

Section One: General

1.1 Scope

1.2 Definitions

Section Two: Essential Composition and Quality Factors

2.1 Composition Factors

2.2 Quality Factors

2.3 Food Additives

Section Three : Hygiene

Section Four : Sampling and Testing

4.1 Sampling

4.2 Testing

63

S.I. 34 of 1999

Section Five : Labelling


5.2 List of Ingredients Additional labelling Information

Table 1 Scale of Sampling and Acceptance number of milk

Table 2 Test methods for UHT and

Pasteurized milk

References


1.1 Scope

This Standard prescribes the necessary requirement (composition and quality factors), sampling and methods for:

(a) modified ultra heat treated skimmed, partly skimmed and full cream milk;

(b) modified pasteurized skimmed, partly skimmed full cream milk.

1.2 Definitions,

For the purpose of this standard the following definition apply:

1.2.1 Acceptance number (Ac) shall mean the maximum number of defective units permitted in the sample.

1.2.2 Full cream milk shall mean milk from which milk fat not been removed.

1.2.3 Milk shall mean, the normal mammary secretion obtain from cow without either addition thereto or extract therefrom.

1.2.4 Modified milk shall mean milk which has been reconstitute or recombined to re-establish the product's specified fi solids-non-fat ratio and solids to water ratio.

1.2.5 Partly skimmed milk shall mean milk from which fat has been removed to reduce the milk fat content to 1.3% m/m to 1.8% m/m.

1.2.6 Pasteurized milk mean milk that has been heated to a, temperature of not less than 720C and retaining it at such temperature for not less than 15 seconds and immediately shock cooling it to a temperature below 4.50C.

1.2.7 Potable water shall mean water which is in accordance with the Public Health (Water Examination) Regulations 1994, (S.I. 44 of 1994).

1.2.8 Recombined milk shall mean the milk product resulting from the combining of milk fat and milk solids-non-fat in one or more of their various forms with or without water.

64

The combination must be made so as to re-establish the product's specified fat to solids-non-fat ratio and solids to water ratio.

1.2.9 Re constituted milk shall mean the milk product resulting from the addition of water to the dried or condensed form of milk in the amount necessary to re-establish the specified Water solids ratio.

1.2.10 Reduced inspection shall mean inspection, less severe than the normal inspection, to which the latter may be switched when the inspection results of a predetermined number of lots indicate that the quality level of the production is better than that specified.

1.2.11 Rejection number (Re) shall mean the minimum number of defective units required in the sample to reject the lot.

1.2.12 Skimmed milk shall mean milk from which fat has been removed to reduce the milk fat content to not more than 0.5% m/m.

1.2.13 Tightened inspection shall mean an inspection, more severe than the normal inspection, to which the latter is switched when the inspection results of a predetermined number of consecutive lots indicate that the quality level of the production is poorer than that specified.

1.2.14 Ultra beat treated milk or UHT milk shall mean milk that has been processed by subjecting the product to a temperature of not less than 1320C for not less than one second and aseptically packaging it in approved hermetically sealed packages.

Section Two: Essential Composition And Quality Factors


2.1.1 Skimmed milk shall

(a) have a maximum milk fat content: 0.5%m/m;

(b) have a minimum milk 8.56/o m/m

solids-non-fat content; or 3.1% m/m

of milk protein

2.1.2 Partly skimmed milk shall

(a) have a minimum milk fat content: 1. 3 % m/m;

(b) have a maximum milk fat content: 1.8% m/m;

(c) have a minimum milk 8.5% m/mm

solids-non-fat content: or 3.1% m/m

of milk protein

65

2.1.3 Full cream milk shall

(a) have a minimum milk fat content: 3.2% m/m;

(b) have a maximum milk 8.5% m/m

solids-non-fat content: or 3.1% m/m

of milk protein

2.2 Quality Factors

2.2.1 Pasteurized skimmed, partly skimmed and full cream milk shall

(a) have a coliform count not exceeding 1 coliform per millilitre;

(b) have a standard plate count not exceeding 50,000 micro-organisms per millilitre.

2.2.2 Ultra heat treated milk shall show no microbiological growth.

2.3 Food Additives

2.3.1 The food additives shall be in accordance with the Codex Alimentarius Volume XIV, Ed. 1.

SECTION THREE:. HYGIENE

The product covered by the provisions of this Standard shall be prepared and packed under strict hygienic conditions in accordance with the. Seychelles standard SS3,,"1991 'Code of Practice for Hygienic Practice for Food Premises, Food Act (Sanitation) Regulations 1992 and Food Act (General Hygiene) Regulations 1992.

SECTION FOUR: SAMPLING AND TESTING

4.1 Sampling

Sampling shall be done in accordance with Table 1.

Table 1: Scale of Sampling and Acceptance number for milk

Lot Size

Normal inspection Tightened inspection Reduced inspection

n Ac Re n Ac Re n Ac Re

Up to 50

51 to 500

2 0 1

8 1 2

3 0 1

13 1 2

2 0 1

3 0 2

66

501 to 3200

3201 to 35000

35001 to 50000

Over 50000

13 2 3

20 3 4

32 5 6

50 7 8

13 1 2

20 2 3

32 3 4

50 5 6

5 1 3

8 1 4

13 2 5

20 3 6

Note : n-sample size, Ac-Acceptance number and Re-Rejection number.

4.2 Testing

4.2.1 Testing shall be done in accordance with the test methods specified in Table 2.

Parameters Test MethodsMilk FatMilk proteinMilk solids-non-fat content ColiformsStandard Plate Count (SPC)

BS 696-2AOAC 991.22AOAC 990.21ISO 5541-1/ISO 5541-2/AOAC986.33ISO 4833/AOAC 990.12

SECTION FIVE: LABELLING

The following information shall be marked or labelled legible and indelibly on each container of milk or on a label sec, fixed to it:

5.1. The Name of the Product

5.1.1 The name-of the product shall be

(a) Modified UHT Skimmed Milk or Modified Pasteurized Skimmed Milk;

(b) Modified UHT Partly Skimmed Milk or Modified Pasteurized Partly Skimmed Milk; or

(c) Modified UHT Full Cream Milk or Modified Pasteurized Full Cream Milk.


5.2.1 The maximum or the minimum percentage of milk written in this form;

'MILK FAT MAXIMUM or M114IMUM (here in maximum or minimum percentage)

5.2.2 The minimum percentage of milk so lids non-fat written this form:

MILK SOLIDS NON-FAT MINIMUM or PROTEIN MINIMUM (he re insert minimum percentage)%'

5.2.3 The nutritional composition of the product may be declared in Joule or calorie.

5.3 Additional labelling Information-

67

In addition to the provisions of section 5.1 and 5.2 of this standard, there shall be written on the label or attached to the container, the following information:-

(a) Brand name of the product; if any,

(b) Name and address. of the manufacturer;

(c) Date of manufacture and or, packing date;

(d) Expiry or best before date;

(e) Net mass in g or kg;

(f) Batch or code number;

(g) Storage instruction.

5.3.1 The expiration time after opening of the container may also be specified.

Certification Mark

The Certification Mark of the Seychelles Bureau of Standards may also be used on this product.

N0TE: The use of the SBS Certification Mark is governed by the provisions of the Seychelles Bureau of Standards Act and the Regulations made thereunder. This mark on products/ services convey the assurance that they have been produced to comply with the requirements of a standard, under a System of Supervision, Control and Test, devised and supervised by SBS and operated by the producer in accordance with the Certification Mark Scheme of the Seychelles Bureau of Standards.

Details pertaining to the conditions and terms under which licence r the certification mark may be granted to manufacturers can be obtained from the Manager, Standardisation, Seychelles Bureau of Standards, Pointe Larue, Mahe.

REFERENCES


Act: 1980 Weights and Measures Act (Seychelles)

BS 696-2:1989 Determination of fat content of milk and milk products (Gerber method)

Food Act: 1992 Regulations (General Labelling)

Food Act: 1992 Regulation (Hygiene)

Food Act: 1992 Regulation (Sanitation)

IS04833:1991 General guidance for enumeration of micro organisms Colony count technique at 30°C.

ISO 5538 Milk and milk products Sampling inspection by Attributes (First edition)

IS05541:1986 Part 1: Enumeration of coliforms Colony count technique at 30°C

68

Part 2: Enumeration of coliforms Most probable number technique at 30°C

ISO 3534-2:1993 Statistics - Vocabulary, and Symbols

(E/F) Part 2: Statistical Quality Control

Part II, A-5 Codex Alimentarius (First edition)

Vol. XVI

SS3:1991 Seychelles standard - Code of Practice, for Hygienic Practice for Food Premises

Vol 1&2:1997 A.O.A.C. Third Revision (Sixteenth edition) Australian Food Standards Code - 1987

Dictionary of food ingredients-. Second edition - Roberts S. igoe

Guide to Food Regulations in the UK - Third edition

___________________

Section 16(1)

Seychelles Bureau of Standards (Seychelles

Standard Time) Notice

[27th December, 1999]

1. This Notice may be cited as the Seychelles Bureau of Standards (Seychelles Standard Time) Notice, and shall come into operation in 1st January, 2000.

2. The Minister declares the standard specification set out in the Schedule to be the mandatory specification for the Seychelles Standard Time.

SCHEDULE

TABLE OF CONTENTS


1.1 Scope

1.2 Definitions

Section Two: Requirement

2.1 Requirements for Global Positioning System (GPS)

2.2 Requirements for Seychelles Standard Time

References

69

S.I. 53 of 1999


1.1 Scope

The standard specification aims at establishing a reference time standard for the Seychelles. It covers the type of equipment for use for dissemination of time as adopted by the Seychelles Bureau of Standards (SBS) and the time accuracy.

1.2 Definitions

“Approved GPS Time Receiver” means a time receiver that satisfies all the requirements set out in 2.1;

“C/A” means coarse acquisition;

“Co-ordinated Universal Time” (UTC) means the time based on a weight combination of atomic clocks around the world and co-ordinated by the BIPM (Bureau International de Poids et Mesures) which often changes by the addition of leap seconds;

“L1" means a carrier frequency;

“Time” means the marking of intervals of an event with respect to a reference and it is measured in hours, minutes, seconds and calendar date;

“Time interval” means the measure of duration between two events and it can be measured as the number of seconds between two events.

Section Two: Requirements

2.1 Requirements for Global Positioning System (GPS)

An approved GPS Time Receiver shall be used for the dissemination of the Seychelles Standard Time. The requirements for the Global Positioning System (GPS) shall be as follows:

1. It shall be positioned at 04°40.7666' South, 55°31.44770' East

2. It shall have six parallel tracking channels;

3. It shall have a system accuracy better than 100 nano-seconds which is provided within one hour;

4. It shall have a receiver frequency of L11.575GHz, C/A code;

5. It shall be synchronised to Co-ordinated Universal Time (UTC).

2.2 Requirements for Seychelles Standard Time

The use of the words Seychelles Standard Time is not permitted without prior authorisation of the Seychelles Bureau of Standards. The requirements for Seychelles Standard Time shall be as follows:

1. Time accuracy better than 100 nanoseconds.

70

2. Synchronised to Co-ordinated Universal Time (UTC).

3. The display of Seychelles Standard Time shall be in hours, minutes, seconds and calendar date.

References

Standards Publications referred to:

EN50081 – 1 Electromagnetic Compatibility - Generic Emission Standard

EN50082 – 1 Electromagnetic Compatibility - Generic Immunity Standard

EN60950 Specification for Safety of Information Techno- logy Equipment, Including Electrical Business Equipment

Manual for the GPS 9390-6000 or 9390-6010 Exact Time GPS

Time Code of Frequency Generator 8500-0082

Role of the GPS from Datum Incorporated Website.

______________________

Section 24(1)

Seychelles Bureau of Standards (National Quality System

Certification Scheme) Regulations

[19th August 2002]

1. These Regulations may be cited as the Seychelles Bureau of Standards (National Quality System Certification Scheme) Regulations.

2. In these Regulations -

“Act” means the Seychelles Bureau of Standards Act;

“assessment” means a verification of the effectiveness of the quality system operated by an applicant or a registered firm through the examination of materials, processes, finished products, methods of test, records, systems, services and other activities established by the applicant or registered firm within its quality systems;

“Director General” means the Director General of the Seychelles Bureau of Standards;

“SS ISO 900, SS ISO 9002 and SS ISO 9003" means the Seychelles Standards for quality systems established under section 15 of the Act and published in the Nation of 25th July, 2002;

“quality system” means the organizational structure, responsibilities, procedures, processes and resources for implementing quality management according to SS ISO 9001, SS ISO 9002 or SS ISO 9003;

71

S.I. 23 of 2002

“registered firm” means a person or a firm holding a valid certificate of registration issued under regulation 6.

3. The Seychelles Bureau of Standards registered firm symbol shall be as specified in the First Schedule.

4. (1) Every application for a certificate of registration shall be -

(a) submitted to the Director General in the form specified in the Second Schedule;

(b) accompanied by a non-refundable application fee as specified in the Third Schedule;

(c) valid for a period of 12 months from the date of application.

(2) There shall be a separate application for a certificate of registration in respect of every site of operation, location or premises of the applicant.

5. The Director General may, on receipt of an application under regulation 4 require the applicant -

(a) to submit a quality manual which shall include, or make reference to, the quality system procedures and outline documentation used in the quality system, covering the requirements of SS ISO 9001 or SS ISO 9002 or SS ISO 9003 as the case may be;

(b) to pay an assessment fee determined by the Director General;

(c) to provide all reasonable facilities to authorised officers for the purpose of conducting assessments at the applicant premises.

6. (1) A certificate of registration shall be in the form specified in the Fourth Schedule and shall be granted upon payment of the fee specified in paragraph 2 of the Third Schedule.

(2) Every certificate of registration shall contain the terms and conditions subject to which it has been granted.

(3) A certificate of registration shall be valid for a period of 2 years from its date of issue and may be renewed for a further period of two years on payment of the renewal fee specified in paragraph 3 of the Third Schedule.

(4) Every registered firm which does not have a place of business in Seychelles shall appoint an agent in Seychelles for the duration of the certificate of registration.

(5) No certificate of registration shall be transferable or assignable, except with the approval of the Director General.

(6) The Director General may, where he is satisfied that a certificate of registration has been destroyed, lost or defaced, issue a duplicate certificate of registration on payment of the fee specified in paragraph 4 of the Third Schedule.

72

7. (1) An authorised officer may, at any reasonable time, enter the premises of a registered firm for the purpose of conducting an assessment.

(2) The Director General may require the payment of an assessment fee to be determined by him for the purpose of conducting an assessment under paragraph (1).

8. (1) No registered firm shall claim compliance with the National Quality System Certification Scheme except -

(a) from the address stated on the certificate of registration;

(b) in respect of the manufacture of goods or operation of processes or provision of services as stated on the certificate of registration.

(2) Every registered firm shall establish, maintain and document a quality system on the terms and conditions under which the certificate of registration has been granted.

(3) Every registered firm shall ensure that the quality system in respect of which a certificate of registration has been granted conforms at all times to the relevant standard.

(4) No registered firm shall use the SBS registered firm symbol -

(a) except together with the registered firm name, certificate number and the relevant standard;

(b) in such manner as to convey or to be likely to convey the impression that the product is certified by the SBS.

(5) No registered firm shall use or make any statement with reference to the firm symbol in a manner which may be misleading.

9. (1) The Board may suspend or revoke a certificate of registration where it is satisfied upon due inquiry that the registered firm has -

(a) failed to comply with any condition of the certificate of registration;

(b) contravened any provision of the Act or these regulations;

(c) failed to pay any fee under these regulations.

(2) Any registered firm whose certificate of registration has been suspended or revoked shall -

(a) forthwith discontinue the use of the SSB registered firm symbol or any material or document containing any reference to it;

(b) immediately return the certificate of registration to the Director General.

10. Any person who contravenes any of these regulations commits an offence, and shall on conviction be liable to a fine not exceeding 2,500 rupees.

FIRST SCHEDULE

73

(regulation 3)

SBS REGISTERED FIRM SYMBOL

The registered firm symbol -

(a) shall be of a circular shape as described in the design;

(b) may be larger or smaller than in the design but its parts shall keep the same proportions as in the design;

(c) the letters SBS shall be in white against a red background.

______________________

SECOND SCHEDULE

(regulation 4)

APPLICATION FOR A CERTIFICATE OF

REGISTRATION

Name of applicant

______________________________________________________________________

Address _______________________________________________________________

______________________________________________________________________

Applicant’s

representative __________________________________________________________

_____________________________________________________________________

Address of factory or premises ____________________________________________

Description of goods or services for which registration is sought

Relevant standard ______________________________________________________

I/We undertake to pay all fees which may be claimed under these regulations, irrespective of the decision regarding this application.

In the event of being granted a certificate, I/We undertake to conform to these regulations, and in particular to pay all the fees.

______________________________________________________________________

Signature of applicant or applicant’s representative

Position

74

______________________________________________________________________

Date

______________________________________________________________________

___________________

THIRD SCHEDULE

(regulations 4 and 6)

TABLE OF FEES

1. For an application 2 000

2. For a certificate of registration 4 000

3. For renewal of a certificate of registration 4 000

4. For a duplicate certificate of registration 250

______________________

FOURTH SCHEDULE

(regulation 6)

SEYCHELLES BUREAU OF STANDARDS NATIONAL QUALITY

SYSTEM CERTIFICATE SCHEME

CERTIFICATE OF REGISTRATION

Certificate Number

___________________________________

This is to certify that

_________________________________________________________________

has a quality system to manufacture goods, operate processes or provide

services detailed in the annex to this certificate and in accordance with

_________________________________________________________________

This certificate remains valid until

_________________________________________________________________

and is subject to the terms and conditions contained in

75

this certificate

Date ________________________ _____________________________

Director General


SEYCHELLES BUREAU OF STANDARDS NATIONAL

QUALITY SYSTEM CERTIFICATE SCHEME

Annex to Certificate

Number _____________________________________________________________

Date __________________________ _____________________________

Director General

__________________

Section 16(1)

Seychelles Bureau of Standards (Standard Specification for Periodic

Inspection and Testing of Refillable Gas Cylinders) Notice

[14th March, 2005]

1. This Notice may be cited as the Seychelles Bureau of Standards (Standards Specification for Periodic Inspection and Testing of Refillable Gas Cylinders) Notice.

2. The Minister of Economic Planning declares the standard specification set out in the Schedule to be mandatory standard specification for periodic inspection and testing of refillable gas cylinders.

SCHEDULE

TABLE OF CONTENTS Page


1.1 Scope 3

1.2 Definition 3

SECTION TWO : GENERAL REQUIREMENTS 4

SECTION THREE: INSPECTION AND TESTING OF

REFILLABLE GAS CYLINDERS

3.1 General 4

76

S.I. 15 of 2005S.I. 29 of 2005

3.2 Preparation of refillable gas cylinders for inspection

and testing 5

3.3 Visual inspections 6

3.4 Inspection of the cylinder neck threads 7

3.5 Hydraulic test 8

3.6 Drying of cylinders 8

3.7. Rejected cylinders 8

3.8 Destruction of unserviceable cylinders 9

3.9 Records 9

SECTION FOUR: MARKING OF TESTED GAS CYLINDERS 10

APPENDIX A: DESCRIPTION AND EVALUATION OF DEFECTS AND CONDITIONS FOR THE REJECTION OF GAS CYLINDERS

A.1 General 11

A.2 Physical or material defects 11

A.3 Corrosion 11

APPENDIX B: HYDRAULIC PROOF PRESSURE TEST

B.1 General 14

B.2 Test equipment 14

B.3 Test method 14

APPENDIX C: HYDRAULIC VOLUMETRIC

EXPANSION TEST

C.1 General 16

C.2 Water jacket volumetric expansion test 16

APPENDIX D: TARE/EMPTY WEIGHT 20

APPENDIX E: CLEARING OF ALUMINIUM ALLOY

CYLINDERS 21

Constitution of Table of Contents

TABLES

77

Table 1 Intervals between periodic inspection and hydraulic

pressure tests 5

Table 2 Rejection limits relating to physical and material

Defects in the cylinder shell 12

Table 3 Rejection criteria for corrosion of the cylinder wall 13

Table 4 Maximum allowable deviation in cylinder tare weight 20

Table 5 Procedures for cleaning the interior of aluminium

Alloy cylinders 21

FIGURES

Figure 1 Example of hydraulic proof pressure test equipment 15

Figure 2 Example of water jacket volumetric expansion

Test equipment (leveling burette method) 18

Figure 3 Example of water jacket volumetric expansion

Test equipment (fixed burette method) 19

References 22


1.1 Scope

This standard specification specifies requirements for the periodic inspection and testing of refillable, transportable aluminium alloy and steel gas cylinders of water capacity 0.5 litre up to 150 litres.

This standard does not apply for the periodic inspection and testing of acetylene cylinders or composite (full wrapped or hoop-wrapped steel or aluminium alloy cylinders and it does not cover the inspection and maintenance of cylinder valves.

1.2 Definition

For the purpose of this standard the following definitions apply:

1.2.1 Corrosion shall mean a chemical reaction on material that result in the removal of the surface of the material.

Note Corrosion may exist in many forms, such as:

(a) chemical attach where the metal is dissolved by the reagents and which may be general over the complete surface, localized (causing pitting), or a combination of the two;

78

(b) rusting caused by the combined action of moisture and air.

1.2.2 Competent person shall mean a person who, through training, qualification skills and/or practical experience is able to verify compliance with this standard.

1.2.3 Expansion shall mean the increase in the cylinder volume due to the application of pressure.

1.2.4 Gas cylinder shall mean a vessel of cylindrical shape having a water capacity of 0.5 litre up to 150 litres used for the storage and conveyance of liquefied or compressed gases.

1.2.5 High pressure liquefied gas shall mean gas that has a critical temperature between - 10°C and 70°C inclusive.

1.2.6 Hydraulic pressure test shall mean a cylinder qualification procedure consisting of the application of internal pressure with the measurement of the cylinder expansion, generally performed with water, but other liquid or gas pressure may be used.

1.2.7 Inspection shall mean visual examination of gas cylinders by a competent person, using appropriate equipment.

1.2.8 Liquefied gas shall mean gas that is liquefiable by pressure at - 10°C or higher.

1.2.9 Low pressure liquefied gas shall mean gas that has critical temperature above 70°C.

1.2.10 Mark shall mean an identification made by a stamp or a sticker as evidence of visual inspection and/or hydraulic pressure test.

1.2.11 Permanent expansion shall mean the increase in cylinder volume due to the application of pressure, which is not recovered when the pressure is released.

1.2.12 Permanent gas shall mean gas that has critical temperance below - 10°C.

1.2.13 Refillable gas cylinder shall mean a gas cylinder meeting the requirements of this standard capable of being refilled with the same type of gas (compressed of liquefied) after having satisfactorily completed the inspection and/or hydraulic pressure test specified in this standard.

1.2.14 Test pressure shall mean the required pressure applied during a pressure test.

1.2.15 Testing station shall mean suitably equipped authorised premises, staffed by competent persons to undertake the periodic inspection and/or testing of refillable gas cylinders, in accordance with this standard.

SECTION TWO : GENERAL REQUIREMENTS

2.1 Refillable gas cylinders shall be subjected to periodic inspection and testing in accordance with the schedule specified in Table 1 and in accordance with the test methods specified in this standard.

2.2 Testing stations shall have the responsibility to verify compliance wit this standard.

79

2.3 Filler of refillable gas cylinders shall be responsible to ensure that all gas cylinders have been inspected and tested prior to filling.

2.4 Refillable gas cylinders not in use shall be properly stored and labeled accordingly.

2.5 Owner, user and filler of gas cylinders shall ensure at all times that cylinders in their possession are not damaged or corroded and shall refer all those suspected of damage or corroded for further inspection and testing regardless of the prescribed inspection and test intervals.

2.6 Refillable gas cylinders due for periodic inspection and testing shall be identified primarily from the sate of manufacture of the cylinder or the last periodic test date marked on the gas cylinders.

2.7 Equipment used for inspection and testing of refillable gas cylinders shall be properly maintained and calibrated at appropriate intervals and maintenance and calibration record properly kept.

2.8 Testing stations shall ensure the necessary safety measures required for inspection and testing of refillable gas cylinders.

2.9 All methods used for the inspection and testing of refillable gas cylinders shall be in accordance with those specified in this standard.

SECTION THREE: INSPECTION AND TESTING OF

REFILLABLE GAS CYLINDERS

3.1 General

Refillable gas cylinder shall be submitted to inspection and hydraulic pressure test in accordance with the schedule specified in Table 1 of this standard.

Cylinders due for hydraulic pressure test shall undergo visual inspection regardless of the prescribed visual inspection interval specified in Table 1 of this standard.

Refurbished cylinders shall undergo both visual inspection and hydraulic pressure test regardless of the prescribed visual inspection and hydraulic pressure test intervals specified in Table 1 of this standard.

Refillable gas cylinder shall be submitted to inspection and hydraulic pressure test in accordance with the schedule specified in Table 1 of this standard.

Cylinders due for hydraulic pressure test shall undergo visual inspection regardless of the prescribed visual inspection interval specified in Table 1 of this standard.

Refurbished cylinders shall undergo both visual inspection and hydraulic pressure test regardless of the prescribed visual inspection and hydraulic pressure test intervals specified in Table 1 of this standard.

Hydraulic pressure test shall take the form of either a proof pressure test or a volumetric expansion test. However, volumetric expansion test. However, volumetric expansion test shall be carried out in the following circumstances:

80

(a) where the cylinder is employed on a duty known to cause a significantly high risk of corrosion;

(b) at the discretion of the testing station, from its knowledge and experience of the history of the cylinders used in a particular service;

(c) at the discretion of the testing station, in order to resolve any doubt arising from the inspection of a gas cylinder;

(d) when testing aluminium cylinders; and,

(e) for all diving cylinders.

Table 1 : Intervals between periodic inspection and hydraulic pressure tests

Gas cylinders for : HydraulicPressure Test

Visual InspectionExternal

InspectionInternal

Inspection

Permanent and high pressure liquefiable gases including carbon dioxide, oxygen, argon, nitrogen, helium, air, hydrogen

4 years 1 year 4 years

All gases and gas mixtures used in self-contained breathing apparatus, to include self-contained breathing apparatus for fire fighters.

2 years 1 year 1 year

Compressed air for diving (Steel) 2 years 1 year 1 year

Compressed air for diving (Aluminium)

4 years 1 year 1 year

Low pressure liquefiable gases including ammonia, butane, refrigerant gases, propane 4 years 2 years 4 years

Pressurized fire extinguishers 4 years 1 year 4 years

3.2 Preparation of refillable gas cylinders for inspection and testing

The following shall be undertaken in the preparation of gas cylinders for inspection and/or testing:

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(a) Record all markings on each cylinder;

(b) Each cylinder and its content shall be identified;

(c) Each cylinder shall be depressurised to atmospheric pressure and the contents shall be discharged in a safe manner and the release of pressure shall be controlled;

(d) Each cylinder shall be weighed on a weighing machine that has been checked for accuracy to determine the difference between the actual mass and the original mass stamped on the cylinder. (Refer to Appendix D);

(e) Where a cylinder has contained a toxic gas, the cylinder shall be purged with an inert gas, air or steam as appropriate. Where the cylinder has contained a flammable non-toxic gas, the cylinder shall be either purged or evacuated so that the percentage of flammable gas remaining is less than the lower flammability limit of the particular gas;

(f) Each cylinder shall be cleaned and have all loose coating and corrosion products and foreign matter removed from its external surface by a suitable method, e.g. by brushing, shot blasting (under close controlled conditions), water jet abrasive cleaning, chemical cleaning or other suitable methods. Care shall be taken to avoid damaging the cylinder or removing excessive amounts of the cylinder wall;

(g) Provided that the requirements given above have been complied with, the cylinder valve shall be removed for internal inspection and hydraulic pressure test.

3.3 Visual inspections

3.3.1 General

Visual inspections shall include external and/or internal inspection of gas cylinder for sign of physical and material defects, corrosion and damage.

Visual inspections shall be carried out by a competent person using appropriate inspection equipment.

Appendix A shall be used to assess the degree of defects, corrosion and damage and the rejection limit for both external and internal inspection of refillable gas cylinders.

3.3.2 External inspection

Each cylinder shall be inspected externally for:

(a) dents, cuts, gouges, bulges, cracks, laminations and base wear;

(b) corrosion, special attention shall be given to the junction between the cylinder base and the footring;

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(c) other defects such as misaligned neck ring or collar, damaged shroud or other fittings, illegible or unauthorized markings, fire damage, electric arc or torch burn, unauthorized additions or modifications.

Sound test shall be done by lightly striking on the body of the cylinder with a suitable object. A muffled ring may indicate corrosion or a defect in the metal, which should be subjected to further examination.

The cylinder which fails to meet the requirements of Appendix A shall be rejected in accordance with clause 3.7 of this standard.

3.3.3 Internal inspection

3.3.3.1 Each cylinder shall be inspected over its whole internal surface using an appropriate device (e.g. a light source of sufficient intensity) to identify any sign of physical and material defects, or corrosion.

3.3.3.2 Any internal liner or coating which can obstruct optimum internal visual inspection shall be removed.

3.3.3.3 Any cylinder showing presence of foreign matter or signs of more than light surface corrosion shall be cleaned internally under closely controlled conditions such as shot blasting, water jet abrasive cleaning, flailing, steam jet, hot water jet, rumbling, cleaning chemical or other suitable method. Care shall be taken to avoid damage to the cylinder during cleaning.

3.3.3.4 Chemical cleaning of aluminium alloy cylinder shall be done in accordance with Appendix E.

3.3.3.5 Where a cylinder is to be used for a gas which may be ingested, care shall be taken to ensure that the cleaning method is such that the cylinder is free from any residual toxicity and loose material before it is returned into service.

3.3.3.6 All cylinders shall be inspected again after cleaning.

3.3.3.7 Internal inspection shall also include inspection of the cylinder neck thread in accordance with clause 3.4 of this standard.

3.3.3.8 The cylinder which fails to meet the requirements of Appendix A shall be rejected in accordance with clause 3.7 of this standard.

3.4 Inspection of the cylinder neck threads

3.4.1 The internal neck thread of each cylinder shall be examined to ensure that it is clean, of full form, and free from damage, burrs, cracks and other imperfections. Common thread defects are galled, worn or corroded crest, and broken or nicked threads.

3.4.2 Where necessary, and where the design of the neck permits, taper threads may be rectify to ensure that there is the required number of effective threads for the safe fitting of the valve. After re-tapping, the thread shall be checked by the appropriate thread gauge.

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3.4.3 When a neck ring exists, examinations for secureness and correct thread shall be carried out. If it is found that any damage has been caused to the cylinder when replacing the neck ring, or if the neck ring has been attached by welding, brazing or soldering, the cylinder shall be removed from further service.

3.5 Hydraulic test

3.5.1 General

3.5.1.1 Each cylinder shall be subjected to a hydraulic pressure test by a competent person in accordance with the schedule specified in Table 1 of this standard. Hydraulic pressure testing shall take the form of a proof pressure test or the volumetric expansion test specified in Appendix C of this standard.

3.5.1.2 The cylinder which fails the hydraulic tests shall be rejected in accordance with clause 3.7 of this standard.

3.5.2 Proof pressure test

3.5.2.1 Hydraulic proof pressure test shall be carried out in accordance with the test method specified in Appendix B of this standard.

3.5.2.2 The test pressure shall be established from the marking on the cylinder or as stipulated by the manufacturer.

3.5.2.3 During test, the cylinder test pressure shall be held for a minimum period of 1 minute during which time there shall be no visible leakage or deformation.

3.5.3 Volumetric expansion test.

3.5.3.1 Volumetric expansion test shall take the form of the water jacket volumetric expansion tests specified in Appendix C of this standard.

3.5.3.2 The test pressure for volumetric expansion test shall be established from the marking on the cylinder or as stipulated by the manufacturer, or 5/3 of the working pressure.

3.5.3.3 The permanent volumetric expansion of the cylinder expressed as a percentage of the total expansion at test pressure shall not exceed 10% or as stipulated by the manufacturer.

3.5.3.4 Where it can be clearly established that apparent excessive permanent volumetric expansion of a cylinder is the result of a fault in the test equipment, the cylinder shall be retested. Where the cylinder may have been over-pressurised, the test shall be carried out only after re-heat treatment.

3.6 Drying of cylinders

The interior of each cylinder shall be thoroughly dried by a suitable method immediately after hydraulic pressure testing. The interior of the cylinder shall be inspected to ensure that there is no trace of free water and that it is free from contamination.

3.7 Rejected cylinders

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Any cylinder that fails to comply with the requirements of clause 3.3 for visual inspections, or any of the hydraulic tests specified in clause 3.5, shall be rejected. If it is not possible to recover a rejected cylinder, it shall be rendered unserviceable and destroyed in accordance with clause 3.8 of this standard.

3.8 Destruction of unserviceable cylinders

Cylinders that have been deemed unserviceable shall be impounded and handed over to the Seychelles Bureau of Standards where they shall be retained for three (3) months during which time the owner may appeal, failing which, it shall be destroyed by the Seychelles Bureau of Standards.

Before any cylinder is destroyed it shall be depressurized in accordance to clause 3.2(c) of this standard.

Cylinder shall be destroyed by any one of the following methods:

(a) The cylinder shall be crushed by mechanical means;

(b) An irregular hole shall be burned in the top dome of the cylinder, equivalent to 10% or more of the area of the top dome;

(c) In the case of thin-walled cylinder, the cylinder shall be pierced in at least three places;

(d) The cylinder, including its shoulder shall be cut into two or more irregular pieces;

(e) Any other alternative method approved by the Seychelles Bureau of Standards.

Drilling a hole in a cylinder shall not be considered as satisfying the requirements of this clause unless it meets the requirement of (b) above.

3.9 Records

3.9.1 Inspection/Test certificate

An inspection/test certificate shall be supplied by the testing station for each cylinder tested. This certificate shall be retained by the testing station and the owner of the cylinder for not less than the intervals between the periodic inspections and hydraulic test laid down in Table 1 of this standard, and shall include the following information:

(a) name and address of owner;

(b) serial number of cylinder;

(c) manufacturing specification;

(d) water capacity;

(e) tare or empty weight,

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(f) test pressure;

(g) method of test i.e. volumetric or proof pressure test;

(h) inspection/test date;

(i) result of inspection/test i.e. pass/fail;

(j) name and signature of inspector;

(k) details of any modification made to the cylinder;

(l) name of gas contained;

(m) name and address of the testing station;

(n) due date of the next inspection/test.

For cylinder that fails to comply with any of the inspections and/or tests required by this standard, the certificate issued to the owner of the cylinder shall identify the cause(s) of failure.

3.9.2 Maintenance of calibration, inspection and test records.

3.9.2.1 All inspection and test equipment shall be properly maintained and/or calibrated as necessary at the appropriate intervals. Records of such maintenance and calibration shall be kept accordingly.

3.9.2.2 All records of inspection and test shall be maintained by the testing station for traceability purpose.

SECTION FOUR: MARKING OF TESTED GAS CYLINDERS

After satisfactory completion of the periodic inspection and/or test, each cylinder shall be permanently and legibly marked with a stamp or a sticker with the following information:

(a) the name and address of the testing station;

(b) the test date which shall be indicated by the two numerical digits or abbreviation of the month and the year of test or the last two numerical

digits of the year of test; e.g. SBS-04-01 or SBS-APR-01 where SBS stands for Seychelles Bureau of Standards.

(c) The due date of periodic inspection and/or testing.

Stamped marking made onto the cylinder shall be confined to the shoulder of the cylinder where the thickness of the metal is greater than the wall. The marking shall not be less than 6mm in height.

APPENDIX A : DESCRIPTION AND EVALUATION OF DEFECTS AND CONDITIONS FOR THE REJECTION OF GAS CYLINDERS

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A.1 General

Gas cylinder defects can be physical, material or due to corrosion as a result of environmental or service conditions to which the cylinder has been subjected during its life.

This appendix provides limits for assessing the defects and conditions for rejection of cylinder based on field experience and judgement in order to ensure that it is safe and suitable prior to return to service.

When applying the criteria given in Table 2 and Table 3 of this standard, the conditions of use of the cylinders, the severity of the defect and the safety factors in the design shall be taken into consideration.

The pictorial figures specified in BS EN 1802, BS EN 1803 and BS EN 1968 may be used as guidelines when assessing gas cylinder defects.

A.2 Physical or material defects

The evaluation of physical and material defects in the cylinder shall be carried out in accordance with Table 2 of this standard.

A.3 Corrosion

Extensive experience and judgement are required in evaluating whether cylinders that have been corroded internally are safe and suitable for return to service. It is important that the surface of the metal is cleaned of corrosion products prior to the inspection of the cylinder.

The evaluation of corrosion of the cylinder wall shall be carried out in accordance with Table 3 of this standard.

If the defect is borderline, or gives rise to uncertainty, the cylinder shall be put aside for more detailed examination, using appropriate equipment if necessary.

Where the bottom of the defect cannot be seen and where its extent cannot be evaluated using appropriate equipment, the cylinder shall be destroyed in accordance with clause 3.8 of this standard.

Table 2 : Rejection limits relating to physical and material defects in the cylinder shell

Type of defect Definition Rejection limits

Bulge Visible swelling of the cylinder Any bulge

Dent A depression in the cylinder that has neither penetrated nor

removed metal and is greater in depth than 1% of the outside

diameter.

When the depth of the dent exceeds 3% of the external diameter of the cylinder; or

When the diameter of the dent is

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less than 15 times its depth.

Cut or Gouge A sharp impression where metal has been removed or

redistributed and whose depth exceeds 5% of the cylinder wall

thickness.

When the depth of the cut or gouge exceeds 10% of the wall

thickness; or

When the length exceeds 25% of the outside diameter of the

cylinder; or

When the wall thickness is less than the minimum designed

thickness

Crack A split or rift in the metal Any crack.

Fire damage Excessive general or localized heating of a cylinder usually

indicated by;

(a) partial melting of the cylinder;

(b) distortion of the cylinder;

(c) charring of burning of paint;

(d) fire damage to valve parts.

All cylinders in categories (a) and (b)

All cylinders in categories (c) and (d), see Note 1.

Plug or neck inserts Additional inserts fitted in the cylinder neck, wall or base.

All cylinders unless it can be clearly established that addition is part of the approved design.

Stamp marking Marking by means of a metal punch

All cylinders with illegible, modified or incorrect or

incorrectly modified markings, see Note 2.

Arc or torch burns Partial melting of the cylinder, the addition of weld or the

removal of metal by scarfing or cratering.

All cylinders with such defects.

Suspicious marks Introduced other than by the cylinder manufacturing process

All cylinders with such defects.

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or approved testing station

Vertical stability Deviation form vertically which may present a risk during service

(especially if fitted with foot ring)

All cylinders with such defects

Note 1 If paint is only charred, a cylinder may be accepted, but if paint has been removed by heat, or if metallic parts of a valve have been melted, the decision to accept, refurbish or reject shall be made the responsibility of a competent person.

Note 2 When it can be clearly established from record or otherwise that the cylinder fully complies with the requirements of the appropriate specification for the relevant gas service, an altered marking may be accepted and illegible or inadequate markings may be corrected by a competent person from an approved testing station.

Table 3 – Rejection criteria for corrosion of the cylinder wall

Type of corrosion Definition Rejection limits

General corrosion Loss of wall thickness over an area of more than 20% of the total surface area of the cylinder

If the original surface of the metal is no longer recognizable; or

If the depth of penetration exceeds 10% of original thickens of wall; or

If the wall thickens is less than the design minimum wall thickness.

Local corrosion Loss of wall thickness over an area of less than 20% of the total surface area of the cylinder except for the other types of local corrosion described below.

If the depth of penetration exceeds 20% of the original thickness of the cylinder wall thickness or if the wall thickness is less than design thickness

Chain pitting and line corrosion Corrosion forming a narrow longitudinal or circumferential line or strip or isolated craters or pits which are almost connected.

If the total length of corrosion in any direction exceeds the diameter of the cylinder and the depth exceeds 10% of the original wall thickness.

Isolated pits Corrosion forming isolated If the diameter of the pits is

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craters, without significant alignment.

greater than 5mm, refer to “Local corrosion”, see above;

If the diameter of the pits is less than 5mm, the pits shall be assessed as carefully as possible in order to check that the remaining thickness of the wall or base is adequate for the intended use for the cylinder.

Crevice corrosion Corrosion taking place in, or immediately around, an aperture.

If, after thorough cleaning, the depth of penetration exceeds 20% of the original wall thickness.

APPENDIX B : HYDRAULIC PROOF PRESSURE TEST

B.1 General

B.1.1 This appendix describes the method for carrying out the hydraulic proof pressure test as specified in sub clause 3.5.2 of this standard.

B.2 Test equipment

B.2.1 All rigid work, flexible tubing, valves, fittings and components forming the pressure system of the test equipment shall be capable to withstand a pressure of 1.5 times the maximum test pressure of any cylinder that will be tested. Flexible tubing shall have sufficient wall thickness to prevent kinking. The design and installation of the equipment and the cylinders connected to it shall be such as to avoid the trapping of air in the system when a liquid medium is used.

B.2.2 All joints within the system shall be leak-tight.

B.2.3 A suitable device shall be fitted to the test equipment to ensure that no cylinder is subjected to a pressure in excess of its test pressure by more than the tolerances in B.3.4.

B.2.4 Pressure gauges shall be to an accuracy of class 1 with a scale appropriate to the test pressure. They shall be chosen such that the test pressure is approximately between S! and T! of the value capable of being measured on the pressure gauge.

B.2.5 Pressure gauges shall be calibrated against a calibrated gauge at regular intervals, not exceeding one year. They shall also be calibrated after each repair and servicing regardless of the validity of calibration.

B.3 Test method

B.3.1 More than one cylinder may be tested at a time, as shown in Figure 1, provided that they all have the same test pressure and that each individual cylinder is capable of being isolated in case of leakage or any other defect.

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B.3.2 The test pressure shall be established from the marking on the cylinder or as stipulated by the manufacturer.

B.3.3 The external surface of the cylinder(s) shall be completely dry before applying pressure.

B.3.4 The pressure applied shall not be below the test pressure and shall not exceed the test pressure by 3% or 10 bars, whichever is the lower.

B.3.5 Apply pressure until the test pressure is reached. On attaining the test pressure, the cylinder(s) shall be isolated from the pump and the pressure shall be held for a minimum period of 1 minute during which time the pressure as registered on the test gauge reading shall remain constant.

B.3.6 The cylinder(s) shall not show any sign of leakage, visible deformation or defect during test.

B.3.7 If there is a leakage in the pressure system, it shall be corrected and the cylinder(s) re-tested.

APPENDIX C : HYDRAULIC VOLUMETRIC EXPANSION TEST

C.1 General

C.1.1 This appendix describes the water jacket method for determining the volumetric expansion of gas cylinders as specified by sub clause 3.5.3 of this standard. Water jacket volumetric expansion test can be done using one of the following methods:-

1. Levelling burette method

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2. Fixed burette method

More than one cylinder may be tested at a time provided that they all have the same test pressure and that each individual test point is capable of being isolated.

C.1.2 Test equipment

The following requirements are general to both methods of test:

(a) Hydraulic test pressure pipelines shall be capable of withstanding a pressure of 1.5 times the maximum test pressure of any cylinder that may be tested.

(b) Glass burettes shall be of sufficient length to contain the full volumetric expansion of the cylinder and shall have bores of uniform diameter such that the expansion can be read to an accuracy of 1% or 0,1 ml, whichever is the greater.

(c) Pressure gauges shall be of accuracy class 1 with a scale appropriate to the test pressure. They shall be calibrated at regular intervals, not exceeding one year. Pressure gauges shall also be calibrated after repair and servicing regardless of validity of calibration.

(d) A suitable device shall be employed to ensure that no cylinder is subjected to a pressure in excess of its test pressure.

(e) Pipework should utilize long bends in preference to elbow fittings and pressure pipes should be as short as possible. Flexible tubing should be capable of withstanding 1.5 times the maximum test pressure in the equipment and should have sufficient wall thickness to prevent kinking.

(f) All joints should be leak-tight.

(g) When installing equipment, care should be taken to avoid the trapping of air in the system.

C.2 Water jacket volumetric expansion test

C.2.1 General

The water jacket volumetric expansion test necessitates enclosing the water-filled cylinder(s) in a jacket also filled with water. The total and any permanent volumetric expansions of the cylinder(s) are measured in relation to the amount of water displaced by the expansion of the cylinder(s) when under pressure and after the pressure is released.

C.2.2 Water jacket volumetric expansion test (leveling burette method)

An example of the test equipment is shown in Figure 2.

This method is used to avoid errors due to parallax or effect of hydrostatic head.

The procedure is as follows:

(a) Fill the cylinder(s) with water and attach to the water jacket cover.

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(b) Seal the cylinder(s) in the jacket with water, allowing the air to bleed off through the air bleed valve.

(c) Connect the cylinder(s) to the hydraulic pressure line. Adjust the burette to zero level by manipulation of the jacket filling valve and drain valve. Raise the pressure in the cylinder(s) to T! of the test pressure, stop pumping and close the hydraulic pressure line valve. Check that the burette reading remains constant.

(d) A rise in water level may indicate either a leaking joint between the cylinder(s) and the jacket or a faulty cylinder.

(e) Restart the pump and open the hydraulic pressure line valve until the cylinder(s) test pressure is reached. Close the hydraulic pressure line valve and stop pumping. Check that the burette reading remains constant.

(f) Lower the burette until the water level is at zero mark on the burette support. Note the water level reading on the burette scale. This is a measure of the total expansion and shall be recorded.

(g) Open the hydraulic line drain valve to release pressure from the cylinder(s). raise the burette until the water level is at zero mark on the burette support. Check that the pressure is at zero and that the water level is constant.

(h) Note the water level reading on the burette scale. This is a measure of the permanent expansion, if any, and shall be recorded.

(i) Calculate the permanent expansion as a percentage of the total expansion from the following formula (see 3.5.3)

Permanent expansion x 100% = % Permanent expansion

Total expansion

(j) The permanent volumetric expansion of the cylinder expressed as a percentage of the total expansion at test pressure shall not exceed 10% or as stipulated by the manufacturer.

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Figure 2 : Example of water jacket volumetric expansion test equipment (levelling burette

method)

C.2.3 Water jacket volumetric expansion test (fixed burette method)

An example of the test equipment is shown in Figure 3.

The procedure is as follows:

(a) Fill the cylinder(s) with water and attach to the water jacket cover.

(b) Seal the cylinder(s) in the jacket and fill the jacket with water, allowing the air to bleed off through the air bleed valve.

(c) Connect the cylinder(s) to the pressure line. Adjust the water level in the burette to a datum on the burette scale. Apply pressure until the test pressure is reached, close the hydraulic pressure line valve and stop pumping. Record the reading on the burette when it is constant. The reading above the datum is the total expansion and shall be recorded on the test certificate.

(d) A rise in the water level may indicate either a leaking joint between the cylinder(s) and the jacket or a faulty cylinder.

(e) Release the pressure and record the burette reading. The reading above the datum is the permanent expansion and shall be recorded on the test certificate.

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(f) Calculate the permanent volumetric expansion as a percentage of the total expansion from the following equation:

Permanent expansion x 100% = % Permanent expansion

Total expansion

(g) The permanent expansion of the cylinder expressed as a percentage of the total expansion at test pressure shall not exceed 10% or as stipulated by the manufacturer.

Figure 3 : Example of the water jacket volumetric expansion test equipment (fixed burette method)

________________

APPENDIX D : TARE/EMPTY WEIGHT

The tare/empty weight of cylinders used for permanent gases shall exclude removable fittings.

The tare/empty weight of cylinders used for liquefiable gases shall include the mass of the cylinder, valve(s) and all permanent fittings.

If the tare/empty weight of the cylinder differs from the stamped tare by more than the value shown in Table 4 and it is not due to reasons of damage, the original tare shall be cancelled and the correct tare shall be marked in a permanent and legibly fashion.

Table 4 – Maximum allowable deviation in cylinder tare weight

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Cylinder water capacity (V)

(1)

Maximum allowable

deviation in

tare weight(g)

0,5V<5,0 +50

0,5V20 +200

>20 +400

APPENDIX E : CLEANING OF ALUMINIUM ALLOY CYLINDERS

Warning

Ensure the cleaning product is marked “Suitable for aluminium”; otherwise serious damage will occur. To ensure gas compatibility completely remove the cleaning agent, or check that the final cleansing operation is compatible with the intended gas service.

Internal

Aluminium cylinders in normal service can accumulate internal contamination which may detrimentally affect use. Table 5 illustrates procedures for cleaning the interior of aluminium alloy cylinders.

Table 5 – Procedures for cleaning the interior of aluminum alloy cylinders

Contamination Cleaning method

Moisture or loose particles Steam clean and blow dry

Oil and grease Degrease with suitable solvent, steam clean

and blow dry

Odour Rinse with solution of sodium bicarbonate,

then rinse with solution of acetic acid,

steam clean and blow dry

Corrosion Tumble with aluminium oxide chips

or pellets, or glass beads, steam clean

and blow dry

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NOTE Ensure all traces of cleaning agent have been removed.

External

The following procedures are examples for cleaning external surfaces:

(a) Soap and water;

(b) Solvent wipe;

(c) A scouring pad and water.

REFERENCES

BS 5430 Part 1:1990 Periodic inspection, testing and maintenance of transportable gas containers (excluding dissolved acetylene containers). Part 1 – Specification for seamless steel containers of water capacity 0.5 litre and above.

BS 5430 Part 2 1990 Periodic inspection, testing and maintenance of transportable gas containers (excluding dissolved acetylene containers). – Part 2. Specification for welded steel containers of water capacity 0.6 litre up to 150L.

BS 5430 Part 3 1990 Periodic inspection, testing and maintenance of transportable gas containers (excluding dissolved acetylene containers). – Part 3. Specification for seamless aluminium alloy containers of water capacity 0.5 litre and above.

BS 5045 Part 1 1982 Transportable has containers. – Part 1. Specification for seamless steel containers above 0.5 litre water capacity.

BS 5045 Part 2 1989 Transportable has containers. – Part 2 Specification for steel containers of 0.5 L up to 450L water capacity with welded seams.

BS 5045 Part 5 1986 Transportable gas containers. – Part 5. Specification for aluminium alloy containers above 0.5 litre up to 130 litres water capacity.

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BS 5045 Part 7 2000 Transportable gas containers. – Part 7. Specification for seamless steel gas containers of water capacity 0.5 litre up to 15 litres for special portable applications.

BS 5045 Part 8 2000 Transportable gas containers. – Part 8. Specification for seamless aluminium alloy gas containers of water capacity 0.5 litre up to 15 litres and up to 300 bar charged pressure at 15°C for special portable applications.

BS EN 1440 : 1997 Transportable refillable welded steel cylinders for liquefied petroleum gas (LPG) – Periodic requalification.

BS EN 1802 : 2002 Transportable gas cylinders – Periodic Inspection and testing of seamless aluminium alloy gas cylinders.

BS EN 1803 : 2002 Transportable gas cylinders – Periodic Inspection and testing of welded carbon steel gas cylinders.

BS EN 1968 : 2002 Transportable gas cylinders – Periodic inspection and testing of seamless steel gas cylinders.

ISO 6406 1992 Periodic inspection and testing of seamless steel gas cylinders.

ISO 10286 1992 Gas cylinders – Terminology.

SS11 Rev 1 1996 Standard Specification for periodic inspection and testing of refillable gas cylinders.

Acknowledgement is made for the use of information from the above publications.

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