标准摘要
[中文适用范围]： 该 SAE 推荐实践指定了标准几何泄漏通道来设置泄漏阈值并比较各种泄漏测试技术和测试条件的结果。这种做法适用于存在允许受管制的燃料或燃料蒸气持续逸出到大气中的风险的燃料系统组件和部件。根据此标准测试的组件或组件具有零 HC 泄漏阈值，因为所选泄漏通道（等效通道）将自堵塞并且不会排放可测量的碳氢化合物液体或蒸气。因此，该标准消除了作为蒸发排放源的泄漏。这种做法主要是针对加压和非加压燃料系统以及含有液态烃基燃料的部件而开发的。目的 1.1.1 提供基于等效通道（或最大允许微通道类型缺陷）的通用密封性规范。为燃油管路组件、蒸汽管理组件和燃油箱组件定义特定的等效通道尺寸，这些尺寸不会因泄漏而导致碳氢化合物 SHED 可检测到的排放。指定泄漏测试方法的要求和实践，以建立和验证泄漏测试方法并比较不同的方法测试条件。注：应该注意的是，通常暴露于燃料流体（液体和蒸汽）的燃料组件和系统都经过测试，以满足 HC 排放要求，测试方法采用可压缩@非危险气体，例如空气@氮气@和氦气。 [外文原描述]： This SAE recommended practice specifies a standard geometry leak channel to set the leak threshold and compare results from a variety of leak test technologies and test conditions. This practice applies to fuel system assemblies and components which have a risk of allowing regulated fuel or fuel vapors to continuously escape to atmosphere. A component or assembly tested to this standard has a zero HC leakage threshold because the selected leak channel (Equivalent Channel) will self-plug and will not emit measurable hydrocarbon liquid or vapors. Therefore this standard eliminates leaks as a source of evaporative emission. This practice was primarily developed for pressurized and non-pressurized fuel systems and components containing liquid hydrocarbon based fuels.Cross Reference: ASTME1316,ISO/IEC 17025,J2045
英文名称Fuel Components and Systems Leak Tightness Specifications and Test Practices (or Methods)