Historical
DIN EN 331:2011
Manually operated ball valves and closed bottom taper plug valves for gas installations for buildings; German version EN 331:1998 + A1:2010 (Foreign Standard)
This document has been prepared by Technical Committee CEN/TC 236 under preparation of Normenausschuss Gastechnik (NAGas) into DIN Deutsches Institut fⁿr Normung e.V. in accordance to DIN EN 331. The Amendment stipulates, like DIN EN 331 requirements for manually operated ball valves and closed bottom taper plug valves for gas installations for buildings for nominal sizes up to and including DN 50 and their testing.
CONTENT PROVIDER
Deutsches Institut für Normung [din]
Deutsches Institut für Normung [din]