标准编号：ISO 9112:2008
中文名称：载重汽车和客车轮胎 测量轮胎滚动周长的方法 负荷下新轮胎
英文名称：Truck and bus tyres — Methods of measuring tyre rolling circumference — Loaded new tyres
发布日期：2008-02
标准范围
This International Standard specifies two methods for measuring the rolling circumference and the number ofrevolutions per unit distance (kilometre) of new commercial vehicle tyres, under loaded conditions, for use ontrucks and buses.The first method is a drum method consisting of loading a test tyre mounted on a free axle against a driven roadwheel (or drum) of specified diameter. The second method involves a vehicle whose drive axle is equipped withthe test tyres driven on a straight, paved road. The values thus obtained are not intended for use as levels ofperformance or quality.This International Standard applies to all truck and bus tyres.NOTE This International Standard applies not only to large truck and bus tyres, but also to small truck and bus tyres, whichare called “light truck tyres” in some countries.
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