Standard Number: YS/T 807.4-2012(YS/T807.4-2012)
Chinese:铝中间合金化学分析方法 第4部分：铬含量的测定 过硫酸铵氧化-硫酸亚铁铵滴定法
English:Methods of chemical analysis for aluminum intermediate alloys Part 4: Determination of chromium content Ammonium persulfate oxidation-ammonium ferrous sulfate titration method
Effective Date:2013-03-01
Standard Applicability:
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