本文件规定了在装载条件下，针对拟用于冰表面乘用车的新轮胎，测量备选轮胎与参考轮胎的相对冰抓性能指数的方法。 本文件适用于所有乘用车轮胎，T型临时备用轮胎除外。

This document specifies the method for measuring the relative ice grip performance index of a candidate tyre compared with a reference tyre under loaded conditions for new tyres intended to be used for passenger cars on surfaces made of ice. This document applies to all passenger car tyres, except for T-type temporary-spare tyres.