Home / Standards / GB/T 1574-2007 GB/T 1574-2007 Active Test method for analysis of coal ash 煤灰成分分析方法 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