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SCHEME OF TESTING AND INSPECTIONFOR

CERTIFICATION OF STEEL TUBES FOR MECHANICAL

AND GENERAL ENGG. PURPOSES

ACCORDING TO IS:3601-1984

1.

LABORATORY: An inspection department shall be maintained which shall besuitably equipped and staffed to carry out the different tests and various

inspections given in the specifications.

2. TEST RECORD: All records of the tests and analyses shall be kept in suitableforms approved by the Institution.

2.1 Copies of any records that my be required by the Institution shall be made

available at any time on request.

2.2 STATISTICAL QUALITY CONTROL: It is recommended that, as far as

possible, statistical quality control (SQC) methods may be used for controlling thequality during production as envisaged in this scheme [see IS:397 (Part I) 1972

and IS:397 (Part II)-1975].

3. STANDARD MARK: One of the standard marks given in the first column of the

first schedule of the license, as applicable, shall be applied at a suitable place onthe outside of each tube provided always that the tubes so marked conform to all

the requirements of the specification. Pipes below 50mm NB shall be marked by

using transfix labels and pipes above 50mm HB by either using transfix labels orby stenciling.

3.1 The symbol GEN to be stamped/embossed on each tube for Mechanical andGeneral Engineering Purposes at a regular interval on the tube.

4. MARKING: In addition, the following information shall be included in the labelattached to each bundle or stenciled on the tube.

a) The type and grade of the tubes;b) Name of the manufacturer or trade mark, if any;c) Size;d) Length of the tube;e) Type of surface coating if any;f) Identification mark in code or otherwise to enable the date and lot of the

manufacture to be traced back to factory records; and

g) Made in India, if required.5. LEVELS OF CONTROL: The tests as indicated in Table 1 and at the level of

control specified therein, shall be carried out on the whole production of the

factory which is covered by this scheme and appropriate records and charts

maintained in accordance with paragraph 2.0 above. All the production whichconforms to the Indian Standards and covered by this licence shall be marked

with ISI Certification Mark.

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5.1 The dimensions of the steel tubes of particular type and grade shall be checked asper relevant clause and table given in IS: 3601-1984 with suitable gauges.

5.2 On the basis of the test and analyses results, decision will be taken regardingconformity or otherwise of the lot as a whole with the requirements of thespecification as given in Table 1.

6. In respect of all other clauses of the specification, the factory shall maintainappropriate controls and checks to ensure that their product conforms to the

requirements of these clauses.

7. REJECTION: A record shall be maintained giving information relating to the

rejection of lots of tubes, which do not conform to the specification and the

method of their disposal. Such lots shall in no case be stored together with those

conforming to the specification.

8. SAMPLE: The licensee shall supply, free of charge, the sample or samples

required in accordance with Regulation 10 of the Indian Standards Institution(Certification Marks) Regulation, 1955, as subsequently amended, from his

factory/godowns. The Institution shall pay for the samples taken by it from the

open market.

9. REPLACEMENT: Whenever a complaint is received soon after the goods with

ISI Mark have been purchased and used and if there is adequate evidence that thegoods have not been misused, defective goods or their components are replaced or

repaired free of cost by the licensee in case the complaint is proved to be genuineand the warranty period (where applicable) has not expired. The final authority of

judge conformity of the product to the Indian Standard shall be with the

Institution.

10. SUSPENSION/RESUMPTION OF MARKING: The marking of the product

shall be suspended under intimation to the Institution, if at any time, there is some

difficulty in maintaining the conformity of the product to the specification, or thetesting equipment goes out of order, or if directed to do so by the Institution for

any reason. The marking may be resumed as soon as the defects are removed or

when the Institution gives the permission to do so. The information regardingresumption of marking shall also be sent to the Institution.

11. STATEMENT & DATA: The licensee shall send to the Institution, as per theenclosed proforma, a statement of the quantity produced, marked and exported by

him and the trade value thereof during the half year ending 30 June and 31

December. This statement is required to be forwarded to the Institution on or

before 31st

day of July and January for the preceding half year.Table

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IS:3601-1984

STEEL TUBES FOR MECHANICAL AND GENERAL ENGG. PURPOSES

TABLE 1 LEVELS OF CONTROL

(Clause 5 of the Scheme of Testing and Inspection)

Test Details Levels of control

Test Method

Sl.

No. Requirement

Clause Reference

No. of

Samples Lot Size Frequency

1. Chemical Composition. Relevant Parts of IS:228 One Each

consignment

i) If the s

or accom

giving re

is require

ii) If tes

chemical

outside l

of testing

2. Workmanship 5.1 IS:3601-1984

3. Straightness. 7.1 -do-

4. Surface protection. 10 IS:3601-1984 &

IS:2633-1972

This is an

5. Tensile test. 12.1 IS:3601-1984 &

IS:1894-1972

Production of

one type &

grade in one

shift.

6. Flattening test. 12.2 IS:3601-1981 &

IS:2328-1963

7. Bend test (strip) 12.3 IS:3601-1984

8. Bend test (whole tube) 12.4 IS:3601-1984 &

IS:2328-1963

9. Crushing test. 12.5 IS:3601-1984

10

.

Drift expansion test. 12.6 IS:3601-1984 &

IS:2335-1963

One Every

tube

One hours

production ofone type and

grade

In case

more of

samples

requirem

If both th

shall be

either

represent

be marke

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PERFORMA - 1

PROFORMA FOR OBTAINING QUARTERLY PRODUCTION DETAILS

Period covered *

Name of Licensee

CM/L No.

Name of Articles (s) IS No. Grade/Type/Size

1.1 Brand/Trade/Name(s) of BIS Certification Marked Products2. Total production of the articles(s)

licensed for certification marking

2.1 Total production of the article(s)conforming to Indian Standard

3. Production covered with BISCertification Mark and its

value

a) Quantity (tonne)b) Invoice sale price

3.1 Brand Name used on production covered under BIS Certification Mark3.2 Calculation of marking fee as per agreed Rate of Marking Fee

a) Unitb) Quantity covered with BIS

Certification Mark

------------------------------------------------------------------------------------------------------------

*Information to be filled up by BO before forwarding to the licensee.Note : Incase a clause is not applicable, suitable remarks may be given against it.

c) Marking fee rounded off inwhole rupees as obtained by

applying unit rates given in

(a) on quantity given in (b)

4. Quantity not covered with BISCertification Mark. If any, and

the reasons for such non-coverage

4.1 Brand Name under with non certified goods were sold5.0 Quantity Exported with BIS Standard Mark and its value5.1 Brand Name under which BIS Certified goods are exported

6.0 Authentication by Chartered AccountantSignature of Authorised Signatory

Name

Date

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