Home / Standards / GB/T 29164-2012 GB/T 29164-2012 Active Guide for utilization of certified reference materials for composition analysis and physical property measurements of coal 煤炭成分分析和物理特性测量标准物质应用导则 Standard Type GBT ICS 73.040 CCS D21 Status 现行 Issue Date 2012-12-31 Implementation 2013-10-01 Responsible Dept 中国煤炭工业协会 Drafting Unit N/A