as 2661-1983 vapour degreasing plant - design installation and operation - safety requirements

7/31/2019 As 2661-1983 Vapour Degreasing Plant - Design Installation and Operation - Safety Requirements

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AS 26611983

Australian Standard

VAPOUR DEGREASING PLANTDESIGN, INSTALLATION ANDOPERATIONSAFETYREQUIREMENTS


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This Australian standard was prepared by Committee SF/24, Safety Code for

Degreasing Plant. It was approved on behalf of the Council of the Standards

Association of Australia on 18 August 1983 and published on 7 October 1983.

The following interests are represented on Committee SF/24:

Australian Chemical Industry Council

Australian Chemical Specialities Manufacturers Association

Australian and New Zealand Society of Occupational Medicine

Commonwealth Institute of Health

Confederation of Australian IndustryDepartment of Defence

Department of Industrial Relations, N.S.W.

Department of Labour and Industry, Vic.

Energy Authority of New South Wales

Metal Trades Industry Association of Australia

Royal Australian Chemical Institute

Safety Institute of Australia

Review of Austr alia n Standa rds. To keep abreast of progress in industry, Australian Standards are subjectto periodic review and are kept up to date by the issue of amendments or new editions as necessary. It isimportant therefore that Standards users ensure that they are in possession of the latest edition, and anyamendments thereto.

Full details of all Australian Standards and related publications will be found in t he Standards AustraliaCatalogue of Publications; this information is supplemented each month by the magazine The Australian

Standard, which subscribing members receive, and which gives details of new publications, new editionsand amendments, and of withdrawn Standards.

Suggestions for improvements t o Australian Standards, addressed to the head office of Standards Australia,are welcomed. Notification of any inaccuracy or ambiguity found in an Australian Standard should be madewithout delay in order that the matter may be investigated and appropriate action taken.

This standard was issued in draft form for comment as DR 82150.


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AS 26611983

Australian Standard

VAPOUR DEGREASING PLANTDESIGN, INSTALLATION ANDOPERATIONSAFETYREQUIREMENTS

First published . . . . . . . . . . . . . . . . . . . . . . . . 1983

PUBLISHED BY STANDARDS AUSTRALIA(STANDARDS ASSOCIATION OF AUSTRALIA)1 THE CRESCENT, HOMEBUSH, NSW 2140

ISBN 0 7262 3188 6


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AS 26611983 2

PREFACE

This standard was prepared by the Associations Committee on Safety for DegreasingPlant at t he request of the Safety Standards Board, i n an endeavour to establish safetyrequirements for the safe use of vapour degreasing plant.

The standard sets out the safety measures to be implemented by suppliers andmanufacturers of vapour degreasing plant and prescribes requirements that ensure thesafety and health of personnel engaged in the operation of such plant. It includesappendices that set out a recommended method for the cleaning of degreasing plant,first aid procedures and the description of properties of solvents used in vapourdegreasing processes.

Persons who work with organic solvents may be exposed to hazards of airbornecontamination, e.g. toxicity, and to other hazards such as oxygen starvation, decom-position products, liquid splashing and others. Protective measures should therefore beadopted by operators to avoid exposure by ingestion, by skin absorption or byinhalation of vapours or liquids at a concentration greater than those provided for inhygiene standards for atmospheric contaminants.

The standard covers the following categories of vapour degreasing plant using organicsolvents:

(a) Vapour degreasing.

(b) Vapour degreasing wi th ultrasonic agitation.

The requirements set out in the standard may be considered for incorporation instatutory regulations.

This standard does not cover surface treatment processes or aqueous or alkalinedegreasing and cleaning operations.

Copyright STANDARDS AUSTRALIA

Users of Standards are reminded that copyright subsists in all Standards Australia publications and software. Except where theCopyright Act allows and except where provided for below no publications or software produced by Standards Australia may bereproduced, stored in a retrieval system in any form or transmitted by any means without prior permission in writing fromStandards Australia. Permission may be conditional on an appropriate royalty payment. Requests f or permission and inform ation oncommercial software royalties should be directed to the head office of Standards Australia.

Standards Australia will permit up to 10 percent of the technical content pages of a Standard to be copied for useexclusively in-house by purchasers of the Standard without payment of a royalty or advice t o Standards Australia.

Standards Australia will also permit the inclusion of its copyright material in computer software programs for no royaltypayment provided such programs are used exclusively in-house by the creators of the programs.

Care should be taken to ensure that material used is from the current edition of t he Standard and that it i s updated whenever theStandard is amended or revised. The number and date of the Standard should t herefore be clearly i dentified.

The use of material in print form or in computer software programs to be used commercially, with or without payment, or incommercial contracts is subject to the payment of a royalty. This policy may be varied by Standards Australia at any time.


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3 AS 26611983

CONTENTS

Page

SECTION 1. SCOPE AND GENERAL

1.1 Scope . . . . . . . . . . . . . . . . . . . . 4

1.2 Appli cat ion . . . . . . . . . . . . . . . . 4

1.3 Re fer enced D ocum ents . . . . . . . 4

1.4 Def ini ti ons . . . . . . . . . . . . . . . . 4

SECTION 2. DESIGN AND CONSTRUCTIONOF VAPOUR DEGREASINGPLANT

2.1 General . . . . . . . . . . . . . . . . . . 6

2.2 Design . . . . . . . . . . . . . . . . . . . 6

2.3 Const ructi on . . . . . . . . . . . . . . . 6

SECTION 3. INSTALLATION REQUIREMENTSFOR VAPOUR DEGREASINGPLANT

3.1 Insta llati on . . . . . . . . . . . . . . . . 8

3.2 Vapour Cont rol . . . . . . . . . . . . . 8

3.3 Ex haus t a nd Ve ntilatio n Syste ms 8

3.4 Mec han ic al Re quire ments . . . . . . 8

3.5 Electric al Re quire ments . . . . . . . 8

3.6 Sa fet y S igns . . . . . . . . . . . . . . . 8

3.7 Safety Provisions for the Installation

of Heat ing Medi a . . . . . . . . . . . 8

3.8 Pi ping and Conduit s . . . . . . . . . 9

SECTION 4. SAFE OPERATION OF VAPOURDEGREASING PLANT

4.1 Operating Instructions . . . . . . . . . 10

4.2 Lifting o f Wo rk Lo ads . . . . . . . . . 10

4.3 Removal of Degreased Parts . . . . . 10

4.4 Op ening of Cove rs . . . . . . . . . . . 10

4.5 Checking of Sump Temperature . . 10

Page

4.6 Restoration of Normal Operating

Condition After Thermal Cutout . . 10

SECTION 5. PERSONAL PROTECTIONREQUIREMENTS

5.1 Pe rson al Pro te ction . . . . . . . . . . . 11

5.2 He alth Provis ions . . . . . . . . . . . . 11

SECTION 6. INSPECTION AND MAINTENANCE

6.1 Gener al . . . . . . . . . . . . . . . . . . . 13

6.2 Re gular Checks . . . . . . . . . . . . . . 13

6.3 Cleaning of Degreasing Plant . . . . 13

SECTION 7. STORAGE AND HANDLING OFSOLVENTS

7.1 Stora ge of Solvents . . . . . . . . . . . 147.2 Handling of Solvents . . . . . . . . . . 14

SECTION 8. TRAINING OF PERSONNELENGAGED TO OPERATE VAPOURDEGREASING PLANT

8.1 Gener al . . . . . . . . . . . . . . . . . . . 15

8.2 Met hods of W ork . . . . . . . . . . . . 15

8.3 Handling of Solvents . . . . . . . . . . 15

8.4 Personal Hygiene and Health . . . . 158.5 Use of Protective Equipment . . . . 15

APPENDICES

A Recommended Method for the Clean-

ing of Vapour Degreasing Plant . . . . 16

B Recommended First Aid Procedures . 17

C Properties of Solvents Used for VapourDegreasing Operations . . . . . . . . . . 19

D Ex ample o f a Wo rk Pe rmit . . . . . . . 20


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AS 26611983 4

STANDARDS ASSOCIATION OF AUSTRALIA

Australian Standard

for

VAPOUR DEGREASING PLANTDESIGN, INSTALLATION AND OPERATION

SAFETY REQUIREMENTS

SECTION 1. SCOPE AND GENERAL

1.1 SCOPE. This standard sets out the requirementsfor t he safe operation of vapour degreasing plant. I tincludes requirements for design, construction,installation and operation of such plant where theyare related to the safety of personnel and equipment.

1.2 APPLICATION. The standard is intended foruse by designers, manufacturers, and operators ofvapour degreasing plant and shall be applied as

follows:(a) All degreasing plant shall comply with the

specific requirements of Sections 2, 3 and 4.

(b) The standard shall be applied in conjunction withthe specific requirements of the appropriatestandards and other specifications coveringsolvents for degreasing purposes.

(c) The protection requirements of Section 5 for thesafety and health of the operators of degreasingplant shall be implemented.

1.3 REFERENCED DOCUMENTS. The followingdocuments are referred to in this standard:

AS 1210 SAA Unfired Pressure Vessels CodeAS 1319 Rules for the Design and Use of Safety

Signs for the Occupational Environment

AS 1337 Eye Protectors for Industrial Applications

AS 1345 Identification of the Contents of Piping,Conduits and Ducts

AS 1375 SAA Industrial Fuel Fired AppliancesCode

AS 1470 Code of General Principles for SafeWorking in Industry

AS 1668 SAA Mechanical Ventilation and Air-

Conditioning CodePart 2Ventilation Requirements

AS 1678 Emergency Procedures Guide

AS 1715 Selection, Use and Maintenance ofRespiratory Protective Devices

AS 1716 Respiratory Protective Devices

AS 1853 Rules for the Design and Construction ofSingle Automatic Oil and Gas Burnersand Their Application to Boilers

AS 1885 Code of Practice for Recording andMeasuring Work Injury Experience

AS 1891 Industrial Safety Belts and Harnesses

AS 2106 Methods for the Determination of theFlashpoint of Flammable Liquids (ClosedCup)

AS 2243 Safety in LaboratoriesPart 1GeneralPart 2Chemical

AS 2508 Safe Storage and Handling InformationCards

AS 2626 Industrial Safety Belts and HarnessesSelection, Use and Maintenance

AS 3000 SAA Wiring Rules

AS CB 18 SAA Pressure Piping CodePart 1Ferrous Piping

AS XXXX Work in Confined Spaces*

AS YYYY Storage and Handling of FlammableLiquids*

Occupational Health Guides (issued by the NationalHealth and Medical Research Council)

Manual of Occupational First Aid (issued by theSt John Ambulance Association).

1.4 DEFINITIONS. For the purpose of t hestandard, the following definitions apply:

1.4.1 Atmospheric contaminanta gas, vapour oraerosol, which is not a constituent of the normalatmosphere.

1.4.2 Condensatea liquid solvent resulting f romthe cooling of solvent vapour. It is the clean solventwhich forms on the condensing coils of a vapourdegreaser or still.

1.4.3 Competent authoritya Minis ter o f theCrown, a government department or other publicauthority having power to issue regulations, orders orother instructions having the force of law in respectof any subject covered by this standard.

1.4.4 Degreasing processa process whereby soiland unwanted contaminants are removed from thesurface of materials.

1.4.5 Degreasing solventan organic compound ina liquid or vapour state used in a degreasing process.(See Appendix C.)

1.4.6 Drag-outsolvent which is carried out of avapour degreasing operation as a liquid trapped in oron the parts being processed.

1.4.7 Flashpointthe lowest temperatures at whichapplication of a small flame causes the vapour abovea flammable liquid to produce a momentary flashwhen it is heated under standardized conditions of

test laid down by an appropriate test method, as inAS 2106.

* In course of preparation.

COPYRIGHT


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