1991ISO 7642:1991 Caravans and lights trailers; trailers of categories O<(Index)1> and O<(Index)2> with overrun brakes; inertia bench test methods for brakes
1983ISO 7642:1983 Road vehicles — Caravans and light trailers — Trailers of categories 01 and 02 — Inertia bench test procedures for overrun brakes