ISO/TR 4114:1979

Road vehicles — Caravans and light trailers — Static load on ball couplings

This Technical Report lays down the limiting values of static loads applied vertically by caravans or light trailers on ball couplings fitted to towing vehicles. Applies to caravans or light trailers for which the maximum authorized weight does not exceed 3,5 tonnes. Not applicable to unbraked trailers and twin-axle trailers.