BS EN 12729:2002

Действует

Devices to prevent pollution by backflow of potable water. Controllable backflow preventer with reduced pressure zone. Family B. Type A — 36 стр.

ICS

13.060.20 Drinking water / Питьевая вода

91.140.60 Water. Including water meters in buildings / Системы водоснабжения. Включая счетчики воды в зданиях