Home / Standards / GB/T 13748.9-2013 GB/T 13748.9-2013 Active Chemical analysis methods of magnesium and magnesium alloys - Part 9:Determination of iron content - Orthopenanthroline spectrophotometric method 镁及镁合金化学分析方法 第9部分:铁含量测定 邻二氮杂菲分光光度法 Standard Type GBT ICS 77.120.10 CCS H12 Status 现行 Issue Date 2013-09-06 Implementation 2014-05-01 Responsible Dept 中国有色金属工业协会 Drafting Unit N/A