Home / Standards / GB 21455-2019 GB 21455-2019 Active Minimum allowable values of the energy efficiency and energy efficiency grades for room air conditioners 房间空气调节器能效限定值及能效等级 Standard Type GB ICS 27.010 CCS F01 Status 现行 Issue Date 2019-12-31 Implementation 2020-07-01 Responsible Dept 国家标准委 Drafting Unit N/A