EN 12284:2003 Refrigerating systems and heat pumps - Valves - Requirements, testing and marking
EN 378-1 Refrigerating systems and heat pumps - Safety and environmental requirements Part 1: Basic requirements@ definitions@ classification and selection criteria
EN 378-2 Refrigerating systems and heat pumps - Safety and environmental requirements - Part 2: Design@ construction@ testing@ marking and documentation
EN 378-4 Refrigerating systems and heat pumps - Safety and environmental requirements - Part 4: Operation@ maintenance@ repair and recovery*, 2017-07-01 Update
EN 60529 Degrees of Protection Provided by Enclosures (IP Code) (Incorporates Amendments A1: 2000 and A2: 2013)