Standard Code | Standard Title | Standard Class | Order |
---|---|---|---|
GB/T 6609.18-2004 |
Chemical analysis methods and determination of physical performanceof alumina--Determination of sulfate content--N,N-dimethyl-P-phenylenediamine spectrophotometric method 氧化铝化学分析方法和物理性能测定方法 N,N-二甲基对苯二胺分光光度法测定硫酸根含量 |
China National Standards performanceof |
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