BS 6281-2:1982

Заменен

Devices without moving parts for the prevention of contamination of water by backflow, Specification for type B air gaps — 10 стр.

Описание Изменения Ссылки Версии

Ссылочные документы

BS EN 14623:2005

Действует

Devices to prevent pollution by backflow of potable water. Air gaps with minimum circular overflow (verified by test or measurement). Family A, type G — 14 стр.