Devices to prevent pollution by backflow of potable water. Controllable backflow preventer with reduced pressure zone. Family B. Type A.
NORMA vydaná dňa 30.4.2009
Designation standards: BS EN 12729:2002
Note: NEPLATNÁ
Publication date standards: 30.4.2009
The number of pages: 36
Approximate weight : 108 g (0.24 lbs)
Country: British technical standard
Kategória: Technické normy BS