Home / Standards / GB 12021.9-2021 GB 12021.9-2021 Active Minimum allowable values of energy efficiency and energy efficiency grades for electric fans 电风扇能效限定值及能效等级 Standard Type GB ICS 27.010 CCS F01 Status 现行 Issue Date 2021-10-11 Implementation 2022-11-01 Responsible Dept 国家标准委 Drafting Unit N/A