1.1范围1。1.1本标准适用于为使用内燃机的公路车辆提供动力的新型丙烷燃料系统部件的结构和性能。1.1.2本标准不适用于固定或非公路应用。1.1.3本标准不适用于最初按照丙烷燃料车辆的联邦机动车辆安全标准制造的机动车辆制造过程中使用的丙烷燃料系统部件。1.1.4本标准包含相当于码/磅数量的国际单位制（公制），目的是允许以国际单位制（公制）单位使用标准。如果本标准中给出的测量值后跟其他单位的等效值，则应将第一个规定值视为要求。 给定的等效值可能是近似值。如果测量值和其他单位的等效值都被规定为引用的标记要求，则应提供第一个规定的单位或两个单位。

1.1Scope1.1.1This Standard applies to the construction and performance of new propane fuel system components providing motive power of highway vehicles utilizing internal combustion engines.1.1.2This Standard does not apply to stationary or non-highway applications.1.1.3This Standard does not apply to propane fuel system compon ents incorporated during the manufacture of motor vehicles originally manufactured in compliance with the Federal Motor Vehicle Safety Standards for Propane-Fuelled Vehicles.1.1.4This Standard contains SI (Metric) equivalents to the yard/pound quantities, the purpose being to allow the Standard to be used in SI (Metric) units. If a value for a measurement as given in this Standard is followed by an equivalent value in other units, the first stated is to be regarded as the requirement. The given equivalent may be approximate. If a value for a measurement and an equivalent value in other units are both specified as a quoted marking requirement, the first stated unit, or both units shall be provided.