Home / Standards / GB/T 28197-2011 GB/T 28197-2011 Active Methods for characterising tristimulus colorimeters for measuring the colour of light 测量光源颜色用三刺激值色度计的表征方法 Standard Type GBT ICS 17.180.30 CCS K70 Status 现行 Issue Date 2011-12-30 Implementation 2012-09-01 Responsible Dept 中国轻工业联合会 Drafting Unit N/A