DIN EN 13774:2013 Valves for gas distribution systems with maximum operating pressure less than or equal to 16 bar - Performance requirements; German version EN 13774:2013
2013DIN EN 13774:2013-05 Valves for gas distribution systems with maximum operating pressure less than or equal to 16 bar - Performance requirements; German version EN 13774:2013
2013DIN EN 13774:2013 Valves for gas distribution systems with maximum operating pressure less than or equal to 16 bar - Performance requirements; German version EN 13774:2013
2003DIN EN 13774:2003 Fittings for gas distribution systems with permissible operating pressures ≤ 16 bar serviceability requirements