Home / Standards / GB/T 4702.4-2008 GB/T 4702.4-2008 Active Chromium metal - Determination of iron content - EDTA titrimetric method and flame atomic absorption spectrometric method 金属铬 铁含量的测定 乙二胺四乙酸二钠滴定法和火焰原子吸收光谱法 Standard Type GBT ICS 77.100 CCS H11 Status 现行 Issue Date 2008-05-13 Implementation 2008-11-01 Responsible Dept 中国钢铁工业协会 Drafting Unit N/A