BS 5911-1:1981

Заменен

Precast concrete pipes, fittings and ancillary products, Specification for pipes and fittings with flexible joints and manholes — 42 стр.

Заменен на

BS 5911-100:1988

ICS

23.040.50 Pipes and fittings of other materials / Трубы и фитинги из других материалов