Home / Standards / GB/T 5950-2008 GB/T 5950-2008 Active Method for measurement of whiteness of building materials and non-metal mineral products 建筑材料与非金属矿产品白度测量方法 Standard Type GBT ICS 91.100.01 CCS Q10 Status 现行 Issue Date 2008-05-04 Implementation 2008-10-01 Responsible Dept 中国建筑材料联合会 Drafting Unit N/A