Home / Standards / GB/T 21245-2007 GB/T 21245-2007 Active Paper and board - Determination of color (C/2°diffuse reflectance method） 纸和纸板颜色的测定(C/2°漫反射法) Standard Type GBT ICS 85-010 CCS Y30 Status 现行 Issue Date 2007-12-05 Implementation 2008-09-01 Responsible Dept 中国轻工业联合会 Drafting Unit 中国轻工业联合会