Devices without moving parts for the prevention of contamination of water by backflow. Specification for type A air gaps.
NORMA vydána dne 1.5.1992
Designation standards: BS 6281-1:1992
Note: NEPLATNÁ
Publication date standards: 1.5.1992
The number of pages: 12
Approximate weight : 36 g (0.08 lbs)
Country: British technical standard
Kategorie: Technické normy BS