Home / Standards / GB/T 1341-2007 GB/T 1341-2007 Active Gray-King assay of coal 煤的格金低温干馏试验方法 Standard Type GBT ICS 73.040 CCS D21 Status 现行 Issue Date 2007-11-01 Implementation 2008-06-01 Responsible Dept 中国煤炭工业协会 Drafting Unit N/A