ANSI CSA AM IAS NGV 4.1-99 CSA 12.5-M99-1999 NGV DISPENSING SYSTEMS (First Edition).pdf

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1、ANSI/IAS NGV 4.1-1999CSA 12.5-M99AMERICAN NATIONAL STANDARD/CSA STANDARDFORNGV DISPENSING SYSTEMSAMERICAN NATIONAL STANDARD CANADIAN STANDARDS ASSOCIATIONANSI/IAS NGV 4.1-1999 CSA 12.5-M99First Edition - 1999NGV DISPENSING SYSTEMSApproved byAmerican National Standards Institute, Inc., February 18, 1

2、999Interprovincial Gas Advisory Council, December 1, 1998This Standard is effective June 1, 2000Prepared byCSA INTERNATIONAL8501 East Pleasant Valley Road 178 Rexdale BoulevardCleveland, Ohio 44131 Toronto, OntarioCanada M9W 1R3On behalf ofthe Natural Gas Vehicle CoalitionPublished - May 1999Copyrig

3、ht 1999Canadian Standards AssociationPermission is granted to republish material herein in laws or ordinances,and in regulations, administrative orders, or similar documents issued bypublic authorities. Those desiring permission for other republicationshould consult CSA International at 178 Rexdale

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5、ult CSA International at 8501 E. Pleasant Valley Road,Cleveland, Ohio 44131.CANADIAN STANDARDS ASSOCIATIONThe Canadian Standards Association, which operatesunder the name CSA International (CSA), under whoseauspices this Standard has been produced, was chartered in1919 and accredited by the Standard

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9、ning memberships together form CSAs totalmembership from which its Directors are chosen. Sustainingmemberships represent a major source of income for CSAsstandards development activities.The Association offers certification and testing services insupport of and as an extension to its standards devel

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13、itation au sein duSystme de normes nationales par le Conseil canadien desnormes en 1973. Association daffiliation libre, sans butlucratif ni pouvoir de rglementation, elle se consacre llaboration de normes et la certification.Les normes CSA refltent le consensus de producteurs etdusagers de partout

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21、8 Rexdale BoulevardToronto, Ontario, M9W 1R3CanadaAMERICAN NATIONAL STANDARDS INSTITUTEThe American National Standards Institute (ANSI),Inc. is the nationally recognized coordinator of voluntarystandards development in the United States throughwhich voluntary organizations, representing virtuallyeve

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26、ally affected bythe standards has been achieved. ANSI coordination isintended to assist the voluntary system to ensure thatnational standards needs are identified and met with aset of standards that are without conflict or unnecessaryduplication in their requirements.Responsibility of approving Amer

27、ican National Standards rests with theAmerican National Standards Institute, Inc.11 West 42nd StreetNew York, NY10036PREFACEThis publication represents a standard for safe operation, substantial and durable construction andperformance testing of components for natural gas vehicle dispensing systems,

28、 within limitations givenbelow and in the scope of this standard.This standard is based on proven engineering principles, research and the combined expertise of gasutilities, manufacturers, users, and others having specialized experience.Nothing in this standard is to be considered in any way as ind

29、icating a measure of quality beyondcompliance with the provisions it contains. It is designed to allow compliance of products which mayexceed that specified in the provisions herein. In its preparation, full recognition has been given topossibilities of improvement through ingenuity of design. This

30、standard is subject to revision as furtherexperience and investigation may show it is necessary and desirable.The CSA International (CSA), and their respective Laboratories, does not assume or undertake to dischargeany responsibility of the manufacturer or any other party. CSA International, shall n

31、ot incur any obligationor liability for damages, including consequential damages, arising out of or in connection with the use,interpretation of or reliance upon this standard.Users of this Harmonized American National and Canadian Standards Association Standard are advisedthat the devices/products/

32、activities within its scope may be subject to regulation at the Federal, state,provincial, or local levels. Users are strongly urged to investigate this possibility through appropriatechannels. In the event of a conflict with this standard, the Federal, state, provincial or local regulationsshould b

33、e followed.This standard does not apply to fuel system components that will be incorporated during originalmanufacture of motor vehicles which comply with Federal Motor Vehicle Safety Standards (FMVSS) orCanadian Motor Vehicle Safety Standards (CMVSS) for Natural Gas Powered Vehicles.CAUTION NOTICE:

34、 This American National Standard may be revised or withdrawn at any time. Theprocedures of the American National Standards Institute, Inc., require that action be taken to reaffirm,revise, or withdraw this standard no later than five (5) years from the date of approval. Purchasers mayreceive current

35、 information on this and other ANSI standards by calling or writing CSA International,8501 East Pleasant Valley Road, Cleveland, Ohio 44131, (216) 524-4990.Information on this and other Canadian standards may be obtained by calling or writing CSA International,78 Rexdale Boulevard, Toronto, Ontario,

36、 Canada M9W 1R3.EFFECTIVE DATE: An organization using this standard for product evaluation as a part of itscertification program will normally establish the date by which all products certified by that organizationshould comply with this standard. In Canada, effective dates are established by the In

37、terprovincial GasAdvisory Council.HISTORY OF DEVELOPMENT OF ANSI NGV 4.1iiCSA 12.5(This history is informative and is not part of the standard)During 1984, there was growing need in the U.S. natural gas vehicle industry for guidelines pertaining tothe assembly of aftermarket equipment installed on m

38、otor vehicles in order to operate alternatively oneither gasoline or natural gas. The American Gas Association Laboratories (AGAL), in response to thisneed developed an A.G.A. Requirement for Natural Gas Vehicle (CNG) Conversion Kits, No. 1-85. Thisrequirement was intended to help promote the safe d

39、evelopment and installation of NGV conversionsystems by manufacturers and installers. The first draft of A.G.A. Requirement No. 1-85 was developedduring 1984 and 1985, with the final version dated August 20, 1985.At the time of its issuance, the A.G.A. No. 1-85 was in compliance with NGV equipment a

40、nd fuelingstations specifications published by the National Fire Protection Association (NFPA) under its Standard forCompressed Natural Gas (CNG) Vehicular Fuel Systems, NFPA 52. The first edition of NFPA 52 wasissued in 1984. A second edition was issued in 1988.In 1988 a group of U.S. gas utilities

41、 formed the Natural Gas Vehicle (NGV) Coalition (the Coalition) topromote widespread use of compressed natural gas as a transport fuel. The Coalition organized committeesto address technical, marketing and legislative issues which would affect the future expansion of a U.S.transportation industry fu

42、eled by natural gas.The Coalition recognized that an important consideration in the successful commercialization of natural gasas a vehicle fuel was the issue of codes and standards (or the lack of codes and standards, or harmonizedcodes and standards) pertaining to both fuel stations and vehicle fu

43、el systems. The Coalitions TechnologyCommittee was established to achieve the goal of an organized family of coordinated codes, standards andregulations addressing natural gas vehicles and fueling stations. To help achieve this goal, the TechnologyCommittee established the Standards and Standardizat

44、ion Subcommittee.Subsequently, the third edition of NFPA 52 was published in 1992. This edition incorporated manychanges developed and recommended by the NGV Coalitions task groups.During August 1992, an NGV Conversion Equipment Task Group was established to coordinate with theAGAL for requirements

45、for compressed NGV conversion kits. The task group agreed the phrase “NGVfuel system” should replace “NGV conversion kits.” (An NGV fuel system is comprised of all majorcomponents required to supply, manage, and/or control fuel flow, enabling a vehicle to operate on naturalgas.) The task group conti

46、nued to meet during August, October and December 1992 to promulgate thedevelopment of a standard to cover both dedicated and bi-fuel natural gas systems for light and mediumduty vehicles.A standard for NGV fuel system components already existed in Canada namely the National Standard ofCanada CAN/CGA

47、 12.3, Fuel System Components for Natural Gas Powered Vehicles. The genesis for thisCanadian document was the Amendment to the 1982 CGA B149.1, Natural Gas Installation Code whichadded to the Code provisions for Natural Gas for Vehicles (NGV) fuel system components on highwayvehicles, as well as cov

48、erage of NGV refuelling stations. Subsequently these NGV aspects evolved intostand-alone Canadian documents, one being the CAN/CGA-12.3 which was first published in February1991.In order to further common goals for North American harmonization, the task group and the CanadianGas Association (CGA) NG

49、V Steering Committee on Natural Gas Powered Vehicles, initiated formationof a joint activity involving the CGA Steering Committees Subcommittee on Fuel System Componentsfor Natural Gas Powered Vehicles and the NGV Conversion Equipment Task Group.On February 17, 1993, the first joint meeting of the NGV Conversion Equipment Task Group and theCGA 12.3 Standards Subcommittee on Fuel System Components for Natural Gas Powered Vehicles washeld. As a result the U.S. Task Group and Canadian