
Specification for pressure operated relay valves for gas burning appliances.
NORM herausgegeben am 13.2.1970
Designation standards: BS 1963:1969
Note: UNGÜLTIG
Publication date standards: 13.2.1970
The number of pages: 21
Approximate weight : 63 g (0.14 lbs)
Country: British technical standard
Kategorie: Technische Normen BS