DIN EN 14811 Berichtigung 1-2006 轨道交通.轨道.特殊目的用轨道.凹槽和相关设施
Railway applications - Track - Special purpose rail - Grooved and associated construction; German version EN 14811:2006, Corrigenda to DIN EN 14811:2006-10
The project specifies grooved tramway rails at and above 46 kg/m. Six pearlitic steel grades are specified with a rail hardness between 200 and 390 HBW.