ISO 21922:2021 EN cc43326c
Refrigerating systems and heat pumps — Valves — Requirements, testing and marking
现行
发布日期 :
2021-08-31
实施日期 :
ISO 22712:2023 EN df5ab43c
Refrigerating systems and heat pumps — Competence of personnel
现行
发布日期 :
2023-03-09
实施日期 :
ISO 13253:2011 EN 7b1f4e9c
Ducted air-conditioners and air-to-air heat pumps — Testing and rating for performance
废止
发布日期 :
2011-07-13
实施日期 :
ISO 14903:2017 EN 16d9fc89
Refrigerating systems and heat pumps — Qualification of tightness of components and joints
废止
发布日期 :
2017-07-12
实施日期 :
ISO 16494:2014 EN d15616a1
Heat recovery ventilators and energy recovery ventilators — Method of test for performance
废止
发布日期 :
2014-11-05
实施日期 :