Home / Standards / GB/T 218-1996 GB/T 218-1996 Abolished Determination of carbon dioxide content in the mineral carbonates associated with coal 煤中碳酸盐二氧化碳含量的测定方法 Standard Type GBT ICS 73.040 CCS D21 Status 废止 Issue Date 1996-12-19 Implementation 1997-07-01 Responsible Dept 中国煤炭工业协会 Drafting Unit 中国煤炭工业协会