1、ANSI/IAS NGV 4.4-1999CSA 12.54-M99AMERICAN NATIONAL STANDARD/CSA STANDARDFORBREAKAWAY DEVICES FORNATURAL GAS DISPENSINGHOSES AND SYSTEMSAMERICAN NATIONAL STANDARD CANADIAN STANDARDS ASSOCIATIONANSI/IAS NGV 4.4-1999 CSA 12.54-M99First Edition - 1999BREAKAWAY DEVICES FOR NATURAL GAS DISPENSING HOSES A
2、ND SYSTEMSApproved byAmerican National Standards Institute, Inc., February 18, 1999Interprovincial Gas Advisory Council, March 10, 1999This Standard is effective June 1, 2000Prepared byCSA INTERNATIONAL8501 East Pleasant Valley Road 178 Rexdale BoulevardCleveland, Ohio 44131 Toronto, OntarioCanada M
3、9W 1R3On behalf ofthe Natural Gas Vehicle CoalitionPublished - June 1999Copyright 1999Canadian Standards AssociationPermission is granted to republish material herein in laws orordinances, and in regulations, administrative orders, or similardocuments issued by public authorities. Those desiring per
4、mission forother republication should consult CSA International at 178 RexdaleBoulevard, Toronto, Ontario, Canada M9W 1R3.Copyright 1999CSA America, Inc.Permission is granted to republish material herein in laws orordinances, and in regulations, administrative orders, or similardocuments issued by p
5、ublic authorities. Those desiring permission forother republication should consult 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
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21、 Pour plus amples renseignements sur les services de la CSA,sadresser CSA International178 Rexdale BoulevardToronto, Ontario, M9W 1R3CanadaAMERICAN NATIONAL STANDARDS INSTITUTEThe American National Standards Institute (ANSI),Inc. is the nationally recognized coordinator of voluntarystandards develop
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25、nizations such as the Pacific Area StandardsCongress (PASC) and the Pan American StandardsCommission (COPANT). As such, ANSI coordinates theactivities involved in the U.S. participation in thesegroups.ANSI approval of standards is intended to verifythat the principles of openness and due process hav
26、ebeen followed in the approval procedure and that aconsensus of those directly and materially 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
27、conflict or unnecessaryduplication in their requirements.Responsibility of approving American 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 cons
28、truction andperformance testing of breakaway devices for natural gas dispensing hoses and systems, within limitationsgiven below 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 o
29、thers having specialized experience.Nothing in this standard is to be considered in any way as indicating 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,
30、 full recognition has been given topossibilities of improvement through ingenuity of design. This standard is subject to revision as furtherexperience and investigation may show it is necessary and desirable.CSA International (CSA), and their respective Laboratories, do not assume or undertake to di
31、scharge anyresponsibility of the manufacturer or any other party. CSA International, shall not incur any obligation orliability 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 America
32、n National and Canadian Standards Association Standard are advisedthat the devices/products/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 o
33、f a conflict with this standard, the Federal, state, provincial or local regulationsshould be 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) orCana
34、dian Motor Vehicle Safety Standards (CMVSS) for Natural Gas Powered Vehicles.CAUTION NOTICE: 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 st
35、andard no later than five (5) years from the date of approval. Purchasers mayreceive current information on this and other ANSI standards by calling or writing CSA International, 8501East Pleasant Valley Road, Cleveland, Ohio 44131, (216) 524-4990.Information on this and other Canadian standards can
36、 be obtained by calling or writing CSA International,78 Rexdale Boulevard, Toronto, Ontario, 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 organi
37、zationshould comply with this standard. In Canada, effective dates are established by the Interprovincial GasAdvisory Council.HISTORY OF DEVELOPMENT OF ANSI/IAS NGV 4.4iiCSA 12.54(This history is informative and is not part of the standard)During 1984, there was growing need in the U.S. natural gas
38、vehicle industry for guidelines pertaining tothe assembly of aftermarket equipment installed on motor 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
39、 Vehicle (CNG) Conversion Kits, No. 1-85. Thisrequirement was intended to help promote the safe development 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
40、 20, 1985.At the time of its issuance, the A.G.A. No. 1-85 was in compliance with NGV equipment and 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 NFP
41、A 52 wasissued in 1984. A second edition was issued in 1988.In 1988 a group of U.S. gas utilities 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 a
42、nd legislative issues which would affect the future expansion of a U.S.transportation industry fueled 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
43、 and standards, or harmonizedcodes and standards) pertaining to both fuel stations and vehicle fuel 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 statio
44、ns. To help achieve this goal, the TechnologyCommittee established the Standards and Standardization Subcommittee.Subsequently, the third edition of NFPA 52 was published in 1992. This current edition incorporates manychanges developed and recommended by the NGV Coalitions task groups.During August
45、1992, an NGV Conversion Equipment Task Group was established to coordinate with theAGAL for requirements 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 sup
46、ply, manage, and/or control fuel flow, enabling a vehicle to operate on naturalgas.) The task group continued 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 standa
47、rd for NGV fuel system components already existed in Canada namely the National Standard ofCanada CAN/CGA 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 Cod
48、e provisions for Natural Gas for Vehicles (NGV) fuel system components on highwayvehicles, as well as coverage 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 furth
49、er common goals for North American harmonization, the task group and the CanadianGas Association (CGA) NGV 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 Coalitions 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 Subcommit
