
Specification for expansion vessels using an internal diaphragm, for sealed hot water heating systems.
NORMA vydána dne 31.7.1990
Designation standards: BS 4814:1990
Note: NEPLATNÁ
Publication date standards: 31.7.1990
The number of pages: 14
Approximate weight : 42 g (0.09 lbs)
Country: British technical standard
Kategorie: Technické normy BS