This leaflet also applies to the wheels of powered axles.
When making applications for the UIC technical approval of wheels made from grades ER8 and ER9 steel, regulations on the initiation and propagation of wheel tread defects shall be added to those contained in this document in order to obtain approval.
UIC OR 510-5-2007 history
2007UIC OR 510-5-2007 Technical approval of monobloc wheels.Application document for standard EN 13979-1