本文件规定了在低速或静止状态下操纵车辆时测量转向力的试验方法。根据ECE和EC车辆分类，即M3、N2、N3类，其主要适用于质量超过3.5吨的卡车和质量超过5吨的公共汽车和铰接式公共汽车。 本文件也适用于质量不超过3.5吨的卡车和质量不超过5吨的客车和铰接式客车，即M2、N1类。

This document specifies a test method for steering effort measurement when manoeuvring a vehicle at low speed or with the vehicle stationary. It is mainly applicable to trucks having a mass exceeding 3,5 tonnes and buses and articulated buses having a mass exceeding 5 tonnes, according to ECE and EC vehicle classification, i.e. categories M3, N2, N3. This document can also be applicable to trucks having a mass not exceeding 3,5 tonnes and buses and articulated buses having a mass not exceeding 5 tonnes, i.e. categories M2, N1.