Commercial road vehicles -- Mechanical connections between towing vehicles and trailers -- 50 mm drawbar couplings
Это стандарт пересмотрен ISO 1102:2001
This second edition cancels and replaces the first edition (1975). Specifies the essential dimensions of a 50 mm drawbar coupling and a 50 mm drawbar eye to permit interchangeability. Applies to mechanical connections designed for commercial vehicles and trailers, the maximum total mass of which is above 3,5 t.