Devices without moving parts for the prevention of contamination of water by backflow.. Specification for type A air gaps.
NORMA vydána dne 30.11.1982
Designation standards: BS 6281-1:1982
Note: NEPLATNÁ
Publication date standards: 30.11.1982
The number of pages: 4
Approximate weight : 12 g (0.03 lbs)
Country: British technical standard
Kategorie: Technické normy BS