Home / Standards / GB/T 7731.8-2008 GB/T 7731.8-2008 Active Ferrotungsten - Determination of antimony content - The tetraethylrhodamine photometrie method and inductively coupled plasma-atomic emission spectrometry 钨铁 锑含量的测定 罗丹明B光度法和电感耦合等离子体原子发射光谱法 Standard Type GBT ICS 77.100 CCS H11 Status 现行 Issue Date 2008-08-19 Implementation 2009-04-01 Responsible Dept 中国钢铁工业协会 Drafting Unit N/A