Home / Standards / GB 19761-2020 GB 19761-2020 Active Minimum allowable values of energy efficiency and energy efficiency grades for fan 通风机能效限定值及能效等级 Standard Type GB ICS 27.010 CCS F01 Status 现行 Issue Date 2020-05-29 Implementation 2021-06-01 Responsible Dept 国家标准委 Drafting Unit N/A