Railway applications - Wheel/Rail friction management - Part 2-2: Properties and Characteristics - Top of Rail materials; German version CEN/TS 15427-2-2:2021— 44 стр.
Railway applications - Wheel/Rail friction management - Part 1-2: Equipment and Application - Top of Rail materials; German version CEN/TS 15427-1-2:2021— 27 стр.