Home / Standards / GB/T 16773-2008 GB/T 16773-2008 Active Method of preparing coal samples for the coal petrographic analysis 煤岩分析样品制备方法 Standard Type GBT ICS 73.040 CCS D26 Status 现行 Issue Date 2008-07-29 Implementation 2009-05-01 Responsible Dept 中国煤炭工业协会 Drafting Unit N/A