Home / Standards / GB/T 28753-2012 GB/T 28753-2012 Active Determining of coalbed gas content - Heating desorption 煤层气含量测定 加温解吸法 Standard Type GBT ICS 75.160 CCS D20 Status 现行 Issue Date 2012-11-05 Implementation 2013-01-01 Responsible Dept 中国煤炭工业协会 Drafting Unit N/A