Home / Standards / GB/T 1966-1996 GB/T 1966-1996 Abolished Test method for apparent porosity and bulk density of porous ceramic 多孔陶瓷显气孔率、容重试验方法 Standard Type GBT ICS 81.060.20 CCS Q32 Status 废止 Issue Date 1996-09-13 Implementation 1997-04-01 Responsible Dept 中国建筑材料联合会 Drafting Unit N/A