ISO 15500-7:2015规定了气体喷射器和/或燃油分配管的试验和要求，这是一种压缩天然气燃料系统部件，用于ISO 3833中定义的机动车类型。 ISO 15500-7:2015适用于根据ISO 15403-1（单燃料、双燃料或双燃料应用）使用天然气的车辆。它不适用于用于向燃烧室高压喷射的喷油器，或以下情况: a） 位于蒸发器上游的液化天然气（LNG）燃料系统部件，包括蒸发器； b） 燃料容器； c） 固定式燃气发动机； d） 集装箱安装硬件； e） 电子燃料管理； f） 加油容器。 注1:本文件未明确涵盖的其他部件可进行检查，以符合ISO 15500本部分的标准，并根据适当的功能测试进行测试。 注2除非另有规定，否则ISO 15500本部分中提及的所有压力均应视为表压。 注3:ISO 15500的这一部分是基于天然气作为燃料的工作压力为20 MPa[200 bar[1]]，在15°C下设定。其他工作压力可以通过调整适当的系数（比率）来调节。 例如，25兆帕（250巴）的工作压力系统需要将压力乘以1,25。 [1] 1巴=0.1兆帕=105兆帕1兆帕=1牛顿/平方毫米

ISO 15500-7:2015 specifies tests and requirements for the gas injector and/or fuel rail, a compressed natural gas fuel system component intended for use on the types of motor vehicles defined in ISO 3833. ISO 15500-7:2015 is applicable to vehicles using natural gas in accordance with ISO 15403？1 (mono-fuel, bi-fuel, or dual-fuel applications). It is not applicable to injectors intended for high-pressure injection to the combustion chamber, or to the following: a) liquefied natural gas (LNG) fuel system components located upstream of, and including, the vaporizer; b) fuel containers; c) stationary gas engines; d) container mounting hardware; e) electronic fuel management; f) refuelling receptacles. NOTE 1 It is recognized that miscellaneous components not specifically covered herein can be examined to meet the criteria of this part of ISO 15500 and tested according to the appropriate functional tests. NOTE 2 All references to pressure in this part of ISO 15500 are to be considered gauge pressures unless otherwise specified. NOTE 3 This part of ISO 15500 is based upon a service pressure for natural gas as fuel of 20 MPa [200 bar[1]] settled at 15 °C. Other service pressures can be accommodated by adjusting the pressure by the appropriate factor (ratio). For example, a 25 MPa (250 bar) service pressure system will require pressures to be multiplied by 1,25. [1] 1 bar = 0,1 MPa = 105 Pa 1 MPa = 1 N/mm2