Home / Standards / GB/T 19223 GB/T 19223 Active Classification of coal mine water 煤矿矿井水分类 Standard Type GBT ICS 13.020.01 CCS D04 Status 现行 Issue Date 2015-05-15 Implementation 2015-07-01 Responsible Dept 中国煤炭工业协会 Drafting Unit 中国煤炭工业协会