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36、nc.Automatic valves for use in gaseoushydrogen vehicle fueling stationsANSI/CSA HGV 4.7-2013ANSI/CSA HGV 4.7-2013Automatic valves for use in gaseoushydrogen vehicle fueling stationsMarch 2013 2013 CSA Group 1ContentsJoint Automotive Technical Committee 2Joint Technical Advisory Committee for Breakaw
37、ay Devices for Natural Gas Dispensing Hoses b) provide an explanation of circumstances surrounding the actual field condition; andc) where possible, phrase the request in such a way that a specific “yes” or “no” answer will address the issue.Committee interpretations are processed in accordance with
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39、te committee. To submit a proposal for change, please send the following information to inquiriescsagroup.org and include “Proposal for change” in the subject line:a) Standard designation (number);b) relevant clause, table, and/or figure number;c) wording of the proposed change; andd) rationale for
40、the change.ANSI/CSA HGV 4.7-2013Automatic valves for use in gaseoushydrogen vehicle fueling stationsMarch 2013 2013 CSA Group 6History of development of ANSI HGV 4.7Note: This history is informative and is not part of the standard.This is the first edition of ANSI/CSA HGV 4.7.In September 2002, CSA
41、met with the U.S. Department of Energy, Renewable Fuels Group in Washington, D.C. to discuss standards development opportunities in the hydrogen technology area. During this meeting, DOE requested that CSA provide a proposal relating to the development of hydrogen technology standards and codes in t
42、he United States.Industry recognized that an important consideration in the successful commercialization of hydrogen gas as a vehicle fuel was the issue of codes and standards, pertaining to both fueling stations and vehicle fuel system components. CSA undertook the goal of establishing a program fo
43、r the development of an organized family of coordinated standards that addresses hydrogen gas vehicles and fueling stations.Industry and CSA recognized there was no standard that addressed safety requirements for automatic valves for use in gaseous hydrogen vehicle fueling stations. The development
44、of such a standard was necessary based on industry needs and feedback:a) There were no standards available for hydrogen applications at the 700 bar pressure levels.b) Automotive OEMs driving the application of hydrogen as a fuel for vehicles expressed concern over solutions in demonstration projects
45、 in the field.The focus of the automatic valves for use in gaseous hydrogen vehicle fueling stations standard established performance and safety based requirements for the material, design, manufacture and testing of automatic valves for gaseous hydrogen vehicle fueling stationsCSA has positioned it
46、self as a leader in the fuel cell, hydrogen and natural gas sectors as a Standards Developing Organization (SDO). CSA is aggressively updating and developing national standards, and is playing a major role in the promulgation of US technologies nationally. As US TAG Administrator to IEC TC 105 for F
47、uel Cell Technologies and as US TAG members of ISO TC 197 and ISO TC 22 / SC 25, CSA is facilitating US technology internationally. CSA organized committees to address technical issues in the development of standards which would affect future expansion of the hydrogen industry.The HGV 4.7 automatic
48、valves for use in gaseous hydrogen vehicle fueling stations standard was processed as an American National Standard in accordance with procedures of the American National Standards Institute (ANSI).This is the first edition of the HGV 4.7 automatic valves for use in gaseous hydrogen vehicle fueling
49、stations standard, and was approved by the American National Standards Institute, Inc. on March 26, 2013.Previous editions of this standard are as follows:CSA America HGV 4.7-2009 TIR.ANSI/CSA HGV 4.7-2013Automatic valves for use in gaseoushydrogen vehicle fueling stationsMarch 2013 2013 CSA Group 7ANSI/CSA HGV 4.7-2013Automatic valves for use in gaseoushydrogen vehicle fueling stations1 ScopeThis standard contains safety requirements for the material, design, manufacture and testing of automatic valves (see Clause 3) used in gaseous hydrogen vehicle fueling st
