Home / Standards / GB/T 22279-2008 GB/T 22279-2008 Active Guide for development of certified reference materials for the composition analysis and the physical property measurements of coal 煤炭成分分析和物理特性测量标准物质研制导则 Standard Type GBT ICS 73.040 CCS D21 Status 现行 Issue Date 2008-08-07 Implementation 2009-03-01 Responsible Dept 中国煤炭工业协会 Drafting Unit N/A