as nzs 29272001 the storage and handling of liquefied chlorine gas

1、AS NZS 2927-2001 The storage and handling of liquefied chlorine gasAS/NZS 2927:2001(Incorporating Amendment No. 1)?Australian/New Zealand StandardThe storage and handling of liquefiedchlorine gasAS/NZS 2927AS/NZS 2927:2001This Joint Australian/New Zealand Standard was prepared by Joint TechnicalComm

2、ittee CH-009, Safe Handling of Chemicals. It was approved on behalf of theCouncil of Standards Australia on 16 March 2001 and on behalf of the Council ofStandards New Zealand on 27 April 2001. It was published on 5 May 2001.The following interests are represented on Committee CH-009:Agsafe Australia

3、Air Conditioning and Refrigeration Wholesalers AssociationAustralasian Fire Authorities CouncilAustralian Chemical Specialties Manufacturers AssociationAustralian Institute of PetroleumAustralian Paint Manufacturers FederationDepartment for Administrative and Information Services, S.A.Department of

4、Industries and Business, N.T.Department of Infrastructure, Energy and Resources, TasmaniaDepartment of Minerals & Energy, W.A.Environment Protection Authority of N.S.W.Institution of Engineers AustraliaNational Occupational Health & Safety Commission, AustraliaThe New Zealand Chemical Indust

5、ry CouncilNew Zealand Fire ServicePlastics and Chemicals Industries Association, AustraliaTranz Rail, New ZealandVictorian WorkCover AuthorityWorkCover New South WalesAdditional interests participating in the preparation of this Standard:Australian Industrial Gas Manufacturers AssociationWater Corpo

6、ration Western AustraliaWater authorities and corporationsManufacturers, suppliers and industrial users of chlorineManufacturers and suppliers of equipment for use with chlorineKeeping Standards up-to-dateStandards are living documents which reflect progress in science, technology andsystems. To mai

7、ntain their currency, all Standards are periodically reviewed, andnew editions are published. Between editions, amendments may be issued.Standards may also be withdrawn. It is important that readers assure themselvesthey are using a current Standard, which should include any amendments whichmay have

8、 been published since the Standard was purchased.Detailed information about joint Australian/New Zealand Standards can be found byvisiting the Standards Australia web site at .standards4.au or StandardsNew Zealand web site at .standards.co.nz and looking up the relevant Standardin the on-line catalo

9、gue.Alternatively, both organizations publish an annual printed Catalogue with fulldetails of all current Standards. For more frequent listings or notification ofrevisions, amendments and withdrawals, Standards Australia and Standards NewZealand offer a number of update options. For information abou

10、t these services,users should contact their respective national Standards organization.We also welcome suggestions for improvement in our Standards, and especiallyencourage readers to notify us immediately of any apparent inaccuracies orambiguities. Please address your comments to the Chief Executiv

11、e of eitherStandards Australia International or Standards New Zealand at the address shownon the back cover.This Standard was issued in draft form for comment as 99498.AS/NZS 2927:2001(Incorporating Amendment No. 1)?Australian/New Zealand StandardThe storage and handling of liquefiedchlorine gas睷眮抵晸

12、眮捯?Originated as AS 29271987.Jointly revised and designated AS/NZS 2927:2001.Reissued incorporating Amendment No. 1 (November 2001).COPYRIGHT Standards Australia/Standards New ZealandAll rights are reserved. No part of this work may be reproduced or copied in any form or by anymeans, electronic or m

13、echanical, including photocopying, without the written permission of thepublisher.Jointly published by Standards Australia International Ltd, GPO Box 5420, Sydney, NSW 2001and Standards New Zealand, Private Bag 2439, Wellington 6020ISBN 0 7337 3827 3AS/NZS 2927:20012PREFACEThis Standard was prepared

14、 by Standards Australia/Standards New Zealand CommitteeCH-009, Safe Handling of Chemicals, to supersede AS 29271987, The storage andhandling of liquefied chlorine gas.This Standard incorporates Amendment No. 1 (November 2001). The change required bythe Amendment is indicated in the text by a margina

15、l bar and amendment number againstthe clause, note, table, figure or part thereof affected.The objective of this Standard is to promote the safety of persons and property wherechlorine is stored or handled in its gaseous or liquefied forms, by providing requirementsand recommendations that are based

16、 on industry best practices.This edition has been reformatted to improve clarity and to align with the other publishedStandards for the storage and handling of dangerous goods. Attention has been paid tobetter alignment with the requirements of the various state, territory and national regulatoryaut

17、horities and emergency services, as well as the various publications of the NationalOccupational Health and Safety Commission (NOHSC).The series of Standards for the storage and handling of dangerous goods presentlycomprises the following Standards:AS1894The storage and handling of non-flammable cry

18、ogenic and refrigerated liquids1940睷The storag眮e and han抵dling of fla晸mmable a眮nd combus捯tible liquids2022Anhydrous ammoniaStorage and handling (known as the? SAA AnhydrousAmmonia Code)2507The storage and handling of agricultural and veterinary chemicals2714The storage and handling of hazardous chem

19、ical materialsClass 5.2substances (organic peroxides)3780The storage and handling of corrosive substances3846The handling and transport of dangerous cargoes in port areas3961Liquefied natural gasStorage and handling4326The storage and handling of oxidizing agents4332The storage and handling of gases

20、 in cylindersAS/NZS1596Storage and handling of LP Gas3833The storage and handling of mixed classes of dangerous goods in packagesand intermediate bulk containers4081The storage and handling of liquid and liquefied polyfunctional isocyanates4452The storage and handling of toxic substances4681The stor

21、age and handling of Class 9 (miscellaneous) dangerous goods andarticlesAustralian and New Zealand references are separated by a slash (/).The terms normative and informative have been used in this Standard to define howappendices apply. A normative appendix is an integral part of the Standard, where

22、as aninformative appendix is for information only.3AS/NZS 2927:2001Statements expressed as mandatory terms in notes and footnotes to figures and tables aredeemed to be requirements of this Standard.Notes that appear in the main text of the Standard are intended to provide information only.睷眮抵晸眮捯?AS/

23、NZS 2927:20014CONTENTSPageSECTION 1SCOPE AND GENERAL1.1SCOPE.61.2APPLICATION.61.3REFERENCED DOCUMENTS.61.4NEW DESIGNS AND INNOVATIONS.71.5DEFINITIONS.71.6CLASSIFICATION OF CHLORINE.101.7MARKING AND LABELLING OF CONTAINERS.101.8SECURITY OF INSTALLATIONS.10SECTION 2MINOR STORAGE2.1SCOPE OF SECTION.112

24、.2CRITERIA FOR CLASSIFICATION AS MINOR STORAGE.112.3REQUIREMENTS APPLICABLE TO MINOR STORAGE.112.4OUTDOOR MINOR STORAGE.122.5INDOOR MINOR STORAGE.122.6FIRST AID.12SECTION 3睷LOCATIO眮N, DESIG抵N AND CO晸NSTRUC眮TION OF 捯CHLORINEINSTALLATIONS3.1SCOPE OF SECTION.?.133.2APPLICATION.133.3LOCATION, DESIGN AND

25、 CONSTRUCTION OF CHLORINEINSTALLATIONS.133.4ADDITIONAL REQUIREMENTS FOR OUTDOOR INSTALLATIONS.153.5ADDITIONAL REQUIREMENTS FOR INDOOR INSTALLATIONS.16SECTION 4STORAGE AND HANDLING EQUIPMENT FOR CHLORINE4.1SCOPE OF SECTION.184.2CONTAINERS.184.3CHLORINATORS.184.4VAPORISERS (EVAPORATORS).194.5PIPING SY

26、STEMS.214.6VALVES.244.7JOINTS AND FITTINGS.244.8PLANT SAFETY EQUIPMENT.25SECTION 5OPERATIONAL AND PERSONNEL SAFETY5.1SCOPE OF SECTION.285.2OPERATION OF THE INSTALLATION.285.3MEDICAL EXAMINATION.285.4PERSONNEL TRAINING.285.5GENERAL PRECAUTIONS.295.6TRANSFER OPERATIONS.305.7MOVEMENT OF CONTAINERS.305.

27、8CONNECTING AND MANIFOLDING CONTAINERS.305.9INSPECTION OF PLANT AND EQUIPMENT.315AS/NZS 2927:2001Page5.10SAFETY PROCEDURES FOR CONSTRUCTION AND MAINTENANCEWORK.325.11PERSONAL PROTECTIVE EQUIPMENT.335.12FIRST AID.34SECTION 6EMERGENCY MANAGEMENT6.1SCOPE OF SECTION.356.2PLANNING FOR EMERGENCIES.356.3MA

28、NIFEST.366.4PLACARDING.376.5MANAGEMENT OF LEAKS.37SECTION 7FIRE PROTECTION7.1SCOPE OF SECTION.387.2GENERAL CONSIDERATIONS.387.3FIRE PROTECTION MEASURES.387.4WATER SUPPLY AND FIRE WATER RETENTION.407.5FIRE PROTECTION REQUIREMENTS.407.6ACTION IN THE EVENT OF FIRE.40SECTION 8DISPOSAL OF CHLORINE CONTAI

29、NERS AND CONTAMINATEDEQUIPMENT.40APPENDICESAPHY睷SICAL AN眮D CHEM抵ICAL DAT晸A FOR C眮HLORINE捯.?.42BHAZARDS ASSOCIATED WITH THE STORAGE AND HANDLING OFCHLORINE.48CREFERENCED DOCUMENTS.49DSAFETY SIGNS AND EMERGENCY INFORMATION PLACARD FORCHLORINE INSTALLATIONS.53EMATERIALS SUITABLE FOR USE WITH CHLORINE.5

30、5FEXPANSION CHAMBER.57GRECOMMENDATIONS ON THE USE OF FOG NOZZLES AND SPRINKLERS.59HCAUSTIC SODA VENTING SYSTEM.601PHYSIOLOGICAL EFFECTS AND FIRST AID PROCEDURES.61JEMERGENCY PROCEDURES FOR LEAKS, SPILLS AND FIRE.63KBIBLIOGRAPHY OF DOCUMENTS PROVIDING GUIDELINES ON THEPREPARATION OF EMERGENCY PLANS.6

31、5LINFORMATION TO BE PROVIDED TO EMERGENCY SERVICES.66MFIRE PROTECTION.67AS/NZS 2927:20016STANDARDS AUSTRALIA/STANDARDS NEW ZEALANDAustralian/New Zealand StandardThe storage and handling of liquefied chlorine gasSECTION 1 SCOPE AND GENERAL1.1 SCOPEThis Standard sets out requirements and recommendatio

32、ns for the safe storage and handlingof liquefied chlorine gas. It also provides requirements and recommendations forvaporisers, chlorinators and other parts of systems in which chlorine is reticulated anddistributed.NOTES:1Physical and chemical data for chlorine is provided in Appendix A.2The hazard

33、ous properties of chlorine are discussed in Appendix B.For the purposes of this Standard, quantities are expressed in kilograms (kg).1.2 APPLICATIONThe requirem睷ents of th眮is Standar抵d apply in晸 conjunct眮ion with, 捯but do no?t take precedenceover, any government regulations that apply in any area.NO

34、TES:1In Australia, chlorine is classified as a workplace hazardous substance by NOHSC: 1008 andlisted in NOHSC: 10005. As such, it is subject to the legislative requirements relating toworkplace hazardous substances.2An installation may come under the regulatory control of several authorities, and a

35、pprovalfrom one does not necessarily constitute an approval from the others.3The relevant requirements of the Building Code of Australia (BCA)/New Zealand BuildingCode (NZBC) apply to all matters relating to building works.This Standard does not apply to(a)the manufacture of chlorine gas;(b)the chlo

36、rination of swimming pools by means of powders or liquids, e.g. calciumhypochlorite, isocyanurates or sodium hypochlorite solution.(c)the transport of liquefied chlorine gas, which is covered by other rules and codes, e.g.the ADG Code/NZS 5433;(d)the handling and transport of chlorine in port areas

37、which, in Australia, is covered byAS 3846; or(e)the end use of chlorine gas.1.3 REFERENCED DOCUMENTSA list of documents referred to in this Standard is provided in Appendix C.COPYRIGHT7AS/NZS 2927:20011.4 NEW DESIGNS AND INNOVATIONSAny materials, designs, methods of assembly and procedures that are

38、alternative to therequirements of this Standard are not necessarily prohibited if equivalent performance andsafety can be demonstrated, e.g. by a formal risk assessment as described in AS/NZS 4360.1.5 DEFINITIONSFor the purpose of this Standard, the definitions below apply.1.5.1 AuthorizedAuthorized

39、 by the legal occupier of the installation.1.5.2 Canister respirator (filtration type escape respirator)A respiratory device incorporating filters which remove certain particles and gases orvapours from the air inhaled by the wearer for a limited period during escape from arespiratory hazard.1.5.3 C

40、hlorinatorEquipment that regulates the flow of chlorine gas into the user system, e.g. swimming pool,sewage effluent.1.5.4 ChlorineElemental chlorine in its gaseous or liquid form.1.5.5 ContainerAny thing in睷 which the眮 chlorine 抵is wholly 晸or partly c眮ontained, 捯including ?cylinders, drums,road tan

41、k vehicles and tanks.1.5.6 CylinderA rigid packaging which is designed in accordance with AS 2030.1 as a portable pressurevessel for the storage of chlorine, and has only one cylinder valve, at one end, used for thewithdrawal of chlorine gas.1.5.7 Dedicated storeAn area that is used solely for the s

42、torage of chlorine containers and their associatedequipment.1.5.8 DrumA cylindrical steel container having a water capacity of 500-1000 L and which can be fittedinto a protective cradle for storage and transport.NOTES:1Drums are designed for either gas or liquid withdrawal and are not fitted with pr

43、essure reliefdevices.2Drums have two valves which, when vertically aligned above one another, permit gas to bedrawn off from the upper valve and liquid chlorine to be drawn off from the lower valve.3In Australia, the nominal capacity of a drum is 920 kg (800 L) of liquefied chlorine.1.5.9 Exposure s

44、tandardAn airborne concentration of a particular substance in the persons breathing zone, exposureto which, according to current knowledge, should not cause adverse health effects or unduediscomfort to nearly all persons. The exposure standard can take one of three forms, time-weighted average (TWA)

45、, short-term exposure limit (STEL) or peak exposure limit.The following terms are used when calculating levels of atmospheric contaminants:COPYRIGHTAS/NZS 2927:20018(a)Time-weighted average (TWA) The averageairborne concentration of a particularsubstance when calculated over a normal eight-hour working day, for a five-day