CSA Z275 3-2009 Occupational safety code for work in compressed air environments (Third Edition).pdf

1、Z275.3-09Occupational safety code for work in compressed air environmentsLegal Notice for StandardsCanadian Standards Association (CSA) standards are developed through a consensus standards development process approved by the Standards Council of Canada. This process brings together volunteers repre

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17、f the contents hereof, and if you do make such copies, you are required to destroy them immediately. Use of this document constitutes your acceptance of the terms and conditions of this Legal Notice.CSA Standards Update ServiceZ275.3-09October 2009Title: Occupational safety code for work in compress

18、ed air environmentsPagination: 53 pages (viii preliminary and 45 text), each dated October 2009To register for e-mail notification about any updates to this publicationgo to www.ShopCSA.caclick on E-mail Services under MY ACCOUNTclick on CSA Standards Update ServiceThe List ID that you will need to

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20、 not-for-profit private sector organization5060 Spectrum Way, Suite 100, Mississauga, Ontario, Canada L4W 5N61-800-463-6727 416-747-4044Visit our Online Store at www.ShopCSA.caZ275.3-09Occupational safety code for work in compressed air environmentsCSA Standard100%ISBN 978-1-55491-237-7Technical Edi

21、tor:Dave Shanahan Canadian Standards Association 2009All rights reserved. No part of this publication may be reproduced in any form whatsoever without the prior permission of the publisher.To purchase CSA Standards and related publications, visit CSAs Online Store at www.ShopCSA.ca or call toll-free

22、 1-800-463-6727 or 416-747-4044.The Canadian Standards Association (CSA) prints its publications on Rolland Enviro100, which contains 100%recycled post-consumer fibre, is EcoLogo and Processed Chlorine Free certified, and was manufactured using biogas energy.October 2009 iiiContents Canadian Standar

23、ds Association Occupational safety code for work in compressed air environmentsTechnical Committee on Diving and Caisson Systems vSubcommittee on Work in Compressed Air Environments viiPreface viii1 Scope 12 Reference publications 13 Definitions 24 Duties of the employer 35 Duties of the person in a

24、uthority 35.1 Qualification of the person in authority 35.2 Responsibility of the person in authority 36 Duties of lock tenders 36.1 Supervision of controls 36.2 Duties and emergency preparedness 36.3 Responsibility to tend one lock at a time 46.4 Tending more than one lock 47 Requirements for compr

25、essed air workers 47.1 Worker awareness 47.2 Medical qualification of workers 57.2.1 Medical certification 57.2.2 Medical records 57.2.3 Worker fitness 57.2.4 Medical examinations 57.3 Lock tenders 57.4 Compressor operators 57.5 Hyperbaric chamber operators 58 Compressors and air supply 68.1 Compres

26、sor operator 68.2 Number of compressors 68.3 Source of energy 68.4 Air quality 68.5 Air temperature 68.6 Maximum pressure 79 Air locks and working chambers 79.1 General 79.2 Bulkheads 79.3 Design criteria 79.4 Horizontal air locks 79.5 Ancillary air locks 89.6 Vertical air locks 99.7 Observation win

27、dow 9Z275.3-09 Canadian Standards Associationiv October 20099.8 Provision for seating and heating 99.9 Supply of air 99.10 Controls 109.11 Automatic controls 109.12 Automatic recording gauges 109.13 Thermometer and gauges 109.14 Smoke stacks 119.15 Drainage of water 1110 Telephones and communication

28、 systems 1111 Lighting and electricity supply 1211.1 General 1211.2 Auxiliary power and emergency lighting 1212 Decompression sickness 1213 Medical facilities 1313.1 Medical services 1313.2 Examination of workers 1313.3 Re-examination following absence due to illness 1313.4 Record keeping 1413.5 Rep

29、orting illness 1413.6 Hyperbaric chambers 1413.7 First aid 1513.8 Emergency and rescue plans 1514 Identification badges 1515 Fire prevention 1516 Notice to public authorities 1617 Work periods 1717.1 Maximum work periods 1717.2 Rest period 1717.3 Work period limits 1717.4 Allowance for decompression

30、 time as part of rest period 1717.5 Minimum period between work periods 1717.6 Post-compression manual labour restriction 1717.7 Posting of work period restrictions 1718 Compression and decompression procedures 17AnnexesA (informative) Decompression tables 21Figures1 Record of compressed air worker

31、182 Record of pre-employment history 193 Record of the examination 20 Canadian Standards Association Occupational safety code for work in compressed air environmentsOctober 2009 vTechnical Committee on Diving and Caisson SystemsS. Duffy Surrey, British Columbia ChairD. Elsey Deep Tech Services Ltd.,

32、 Mississauga, OntarioVice-ChairB. Banks Divers Institute of Technology,Jamestown, Rhode Island, USAC. Beaudry Camcor Diving Inc., Tofino, British ColumbiaR. Bolger Ontario Provincial Police Academy,Gravenhurst, OntarioAssociateJ. Chapple Aqua-Lung Canada Ltd.,Saanichton, British ColumbiaB. Dixit Nat

33、ional Energy Board, Calgary, AlbertaP. Fagan Laborers International Union of North America,Toronto, OntarioS. Ferguson University of British Columbia, Vancouver, British ColumbiaD. Fullerton Parry Sound, OntarioW. Fulton WorkSafe BC,Vancouver, British ColumbiaJ. Galvin Victoria, British ColumbiaD. G

34、eddes Seneca College of Applied Arts and Technology,King City, OntarioG. Gillan Defence Construction Canada,Shearwater, Nova ScotiaAssociateA. Gilmour DRDC Toronto Experimental Diving Unit,Toronto, OntarioT. Greenwood Cal Dive International,Houston, Texas, USAS. Greguoldo Nova Scotia Department of E

35、nvironment and Labour,Halifax, Nova ScotiaA. Griffin Seneca College of Applied Arts and Technology,King City, OntarioAssociateZ275.3-09 Canadian Standards Associationvi October 2009G. Hay Canadian Working Divers Institute, Buckhorn, OntarioJ. Hume Underwater Harvesters Association, Saanichton, Briti

36、sh ColumbiaAssociateJ. Jorgenson Freshwater Institute, Winnipeg, ManitobaAssociateR. Landry Canadian Safety Associates, Toronto, OntarioAssociateF. LaQue Divers Institute of Technology, Seattle, Washington, USAAssociateS. Lavoie Institut Maritime du Qubec, Rimouski, QubecR. Linden Ontario Wound Care

37、 Inc.,North York General Hospital,Toronto, OntarioW. MacPherson Ontario Provincial Police Academy, Gravenhurst, OntarioJ. Mitchell Ontario Ministry of Labour, Ottawa, OntarioD. Normandin Defence Construction Canada, Montral, QubecAssociateD. Parkes Diver Certification Board of Canada, Halifax, Nova

38、ScotiaAssociateD. Reid Vancouver Aquarium Marine Science Centre,Vancouver, British ColumbiaAssociateC. Rochon Commission de la sant et de la scurit du travail du Qubec,Qubec, QubecS. Simms Canadian Coast Guard,Richmond, British ColumbiaAssociateP. Waddell Parks Canada Agency, Ottawa, OntarioM. Waldi

39、e Talisman Energy Inc., Port Colborne, OntarioS. White Holland College Georgetown Centre,Georgetown, Prince Edward IslandJ. Wilson Hyperbaric Consultants, Willowdale, OntarioD. Shanahan Canadian Standards Association, Mississauga, OntarioProject Manager Canadian Standards Association Occupational sa

40、fety code for work in compressed air environmentsOctober 2009 viiSubcommittee on Work in Compressed Air EnvironmentsE. Nassif Ontario Ministry of Labour,Toronto, OntarioChairP. Cleary McNally Construction Inc.,Toronto, OntarioP. Fagan Laborers International Union of North America,Toronto, OntarioW.

41、Fulton WorkSafeBC, Vancouver, British ColumbiaD. Geddes Seneca College of Applied Arts and Technology,King City, OntarioA. Gilmour DRDC Toronto Experimental Diving Unit,Toronto, OntarioR. Janisse University Health Network,Toronto, OntarioL. Kurtz Construction Safety Association of Ontario,Toronto, O

42、ntarioR. McGillis Ontario Power Generation Inc.,Pickering, OntarioM. McNally C (b) provide an explanation of circumstances surrounding the actual field condition; and(c) be phrased where possible to permit a specific “yes” or “no” answer.Committee interpretations are processed in accordance with the

43、 CSA Directives and guidelines governing standardization and are published in CSAs periodical Info Update, which is available on the CSA Web site at www.csa.ca. Canadian Standards Association Occupational safety code for work in compressed air environmentsOctober 2009 1Z275.3-09Occupational safety c

44、ode for work in compressed air environments1Scope1.1This Standard applies to all work in compressed air environments at pressures above 20 kPa (3 psig) and sets forth requirements for the health and safety of workers exposed to these environments.Note: In addition to the requirements of this Standar

45、d for the protection of workers, requirements can be prescribed by the authority having jurisdiction.1.2This Standard applies to every shaft, tunnel, caisson, enclosure, and similar type of work site in which a worker is, or is likely to be, subjected to working in compressed air.1.3This Standard do

46、es not apply to divers or workers employed in diving bells (see CAN/CSA-Z275.2) and to hyperbaric treatment facilities (see CSA Z275.1).1.4In CSA Standards, “shall” is used to express a requirement, i.e., a provision that the user is obliged to satisfy in order to comply with the standard; “should”

47、is used to express a recommendation or that which is advised but not required; and “may” is used to express an option or that which is permissible within the limits of the standard. Notes accompanying clauses do not include requirements or alternative requirements; the purpose of a note accompanying

48、 a clause is to separate from the text explanatory or informative material. Notes to tables and figures are considered part of the table or figure and may be written as requirements. Annexes are designated normative (mandatory) or informative (non-mandatory) to define their application.1.5The values

49、 given in SI units are the units of record for the purposes of this Standard. The values given in parentheses are for information and comparison only. All air pressures specified in this Standard are expressed in kPa gauge (above atmospheric pressure) with the equivalent psi gauge units shown in parentheses.2 Reference publicationsThis Standard refers to the following publications, and where such reference is made, it shall be to the edition listed below, including all amendments published thereto.CSA (Canadian Standards Association)CAN/CSA-Z180.1-00 (