Home / Standards / GB 4632-1997 GB 4632-1997 Abolished Determination of moisture-holding capacity of coal 煤的最高内在水分测定方法 Standard Type GB ICS 73.040 CCS D21 Status 废止 Issue Date 1997-04-17 Implementation 1997-10-01 Responsible Dept 中国煤炭工业协会 Drafting Unit N/A