本文件规定了用于所有轨距的铁路车轮的特性。 本文件适用于重型铁路车辆，但也可能适用于轻型车辆等其他应用 铁路车辆、有轨电车或地下系统。有五个钢种，ER6、ER7、ER8、ER8和ER9 在本文件中定义。购买本文件时可获得的所有当前修订均包含在购买本文件中。

This document specifies the characteristics of railway wheels, used for all track gauges. This document applies to heavy railway vehicles but may also apply to other applications such as light railway vehicles, trams or underground systems. Five steel grades, ER6, ER7, ER8, ERS8 and ER9, are defined in this document.All current amendments available at time of purchase are included with the purchase of this document.