Home / Standards / GB/T 24999-2010 GB/T 24999-2010 Abolished Paper and board - Highest limitation of brightness 纸和纸板 亮度（白度）最高限量 Standard Type GBT ICS 85.010 CCS Y30 Status 废止 Issue Date 2010-08-09 Implementation 2010-12-01 Responsible Dept 中国轻工业联合会 Drafting Unit 中国轻工业联合会