本文件规定了液化天然气燃料系统部件的性能和一般试验方法，这些部件拟用于ISO 3833中定义的机动车辆类型。本文件也适用于其他适当的液化天然气燃料汽车，直到为此类汽车制定了任何具体规范。它还提供了一般设计原则，并规定了说明和标记的要求。购买本文件时可获得的所有当前修订均包含在购买本文件中。

This document specifies the performance and general test methods of liquefied natural gas fuel system components, intended for use on the types of motor vehicles as defined in ISO 3833. This document is also applicable to other LNG-fueled motor vehicles as far as appropriate, until any specific norm is worked out for such a type of vehicle. It also provides general design principles and specifies requirements for instructions and marking.All current amendments available at time of purchase are included with the purchase of this document.