Standard Code | Standard Title | Standard Class | Order |
---|---|---|---|
GB/T 20975.31-2019 |
Methods for chemical analysis of aluminium and aluminium alloys—Part 31:Determination of phosphorus content—Molybdenum blue spectrophotometry 铝及铝合金化学分析方法 第31部分:磷含量的测定 钼蓝分光光度法 |
China National Standards 31:Determination |
English PDF |
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