Home / Standards / GB/T 24520-2009 GB/T 24520-2009 Active Cast iron and low alloy steel - Determination of lanthanum, cerium and magnesium content - Inductively coupled plasma atomic emission spectrometric method 铸铁和低合金钢 镧、铈和镁含量的测定 电感耦合等离子体原子发射光谱法 Standard Type GBT ICS 77.080.01 CCS H11 Status 现行 Issue Date 2009-10-30 Implementation 2010-05-01 Responsible Dept 中国钢铁工业协会 Drafting Unit 中国钢铁工业协会