Home / Standards / GB/T 223.79-2007 GB/T 223.79-2007 Active Iron and steel - Determination of multi - element contents - X - ray fluorescence spectrometry (Routine method) 钢铁 多元素含量的测定 X-射线荧光光谱法（常规法） Standard Type GBT ICS 77.080.20 CCS H11 Status 现行 Issue Date 2007-09-11 Implementation 2008-02-01 Responsible Dept 中国钢铁工业协会 Drafting Unit N/A