标准摘要
[中文适用范围]： 第二版取消并取代了第一版 (ISO 7642:1983)，其中某些值已更改，删除了之前的第 8 条并更新了参考文献。 规定了与机械和液压操作制动系统相关的超速制动器的型式认可测试的测试方法。 因此应结合相关法规使用。 建议在应用本国际标准之前研究该法规。 ISO 7642 仅使用 SI 单位。 [外文原描述]： This second edition cancels and replaces the first edition (ISO 7642:1983), of which certain values have been altered, the previous clause 8 deleted and references updated. Specifies test methods for type approval testing of the overrun brakes that relate to mechanically and hydraulically operated braking systems. Should therefore be used in connection with the pertinent regulation. It is recommended that the regulation is studied before application of this International Standard. ISO 7642 uses only SI units.
英文名称Caravans and light trailers — Trailers of categories 01 and 02 with overrun brakes — Inertia bench test methods for brakes