本SAE推荐实施规程描述了当根据SAE J140中规定的测试程序进行测试时，机动车安全带总成中使用的硬件的性能要求。卷收器的测试程序和性能要求将包含在稍后发布的单独SAE推荐规程中。

This SAE Recommended Practice describes performance requirements for hardware used in motor vehicle seat belt assemblies when tested in accordance with the test procedures specified in SAE J140.Test procedures and performance requirements for retractors will be covered in separate SAE Recommended Practices to be issued later.