Home / Standards / GB/T 39388-2020 GB/T 39388-2020 Active Characterization of the performance of illuminance meters and luminance meters 照度计和亮度计的性能表征方法 Standard Type GBT ICS 17.180.30 CCS K70 Status 现行 Issue Date 2020-11-19 Implementation 2021-06-01 Responsible Dept 中国轻工业联合会 Drafting Unit N/A