Home / Standards / GB/T 7771-2008 GB/T 7771-2008 Active Measurement of special metamerism index - Change in illuminant 特殊同色异谱指数的测定 改变照明体 Standard Type GBT ICS 87.060.10;71.100.01 CCS G55 Status 现行 Issue Date 2008-09-18 Implementation 2009-05-01 Responsible Dept 中国石油和化学工业联合会 Drafting Unit N/A