Home / Standards / GB/T 16399-1996 GB/T 16399-1996 Abolished Method for chemical analysis of clay 粘土化学分析方法 Standard Type GBT ICS 91.100.20 CCS Q32 Status 废止 Issue Date 1996-05-27 Implementation 1996-12-01 Responsible Dept 中国建筑材料联合会 Drafting Unit N/A