Thermostatically controlled thermal storage electric water heaters with copper containers from 1 1/2 to 100 gallons capicity.
STANDARD published on 22.5.1939
Designation standards: BS 843:1939
Note: WITHDRAWN
Publication date standards: 22.5.1939
Approximate weight : 300 g (0.66 lbs)
Country: British technical standard
Category: Technical standards BS