2004DIN EN 12284:2004-01 Refrigerating systems and heat pumps - Valves - Requirements, testing and marking; German version EN 12284:2003 / Note: To be replaced by DIN EN ISO 21922 (2018-09).
1970DIN EN 12284 E:1996-05 Refrigerating systems and heat pumps - Valves - Requirements, testing and marking