标准摘要
[中文适用范围]： 本文件规定了用于 ISO 3833 中定义的机动车辆类型的过量流量阀、压缩气态氢 (CGH2) 和氢气/天然气混合燃料系统组件的测试和要求。 它适用于使用 CGH2 的车辆符合 ISO 14687-1 或 ISO 14687-2 的要求，以及使用符合 ISO 15403-1 和 ISO/TR 15403-2 要求的天然气的氢气/天然气混合物。 不适用于以下各项： a) 液化氢（LH2）燃料系统部件； b) 燃料容器； c) 固定式燃气发动机； d) 容器安装硬件； e) 电子燃油管理； f) 加油容器； g) 燃料电池汽车。 注1：公认的是，本文中未具体涵盖的各种组件可以进行检查以满足本文件的标准，并根据适当的功能测试进行测试。 注 2：除非另有说明，本文件中所有提及的压力均视为表压。 [外文原描述]： ISO 12619-11:2017specifies tests and requirements for the excess flow valve, a compressed gaseous hydrogen (CGH 2 ) and hydrogen/natural gas blend fuel system component intended for use on the types of motor vehicles defined in ISO 3833. It is applicable to vehicles using CGH 2 in accordance with ISO 14687-1 or ISO 14687-2 and hydrogen/natural gas blend using natural gas in accordance with ISO 15403-1 and ISO/TR 15403-2. It is not applicable to the following: a) liquefied hydrogen (LH 2 ) fuel system components; b) fuel containers; c) stationary gas engines; d) container mounting hardware; e) electronic fuel management; f) refuelling receptacles; g) fuel cell vehicles. NOTE 1 It is recognized that miscellaneous components not specifically covered herein can be examined to meet the criteria of ISO 12619-11:2017and tested according to the appropriate functional tests. NOTE 2 All references to pressure in ISO 12619-11:2017are considered gauge pressures unless otherwise specified.
英文名称Road vehicles — Compressed gaseous hydrogen (CGH2) and hydrogen/natural gas blends fuel system components — Part 11: Excess flow valve