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| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| GB/T 223.48-1985 |
Methods for chemical analysis of iron，steel and alloy--The semixylenol orange photometric method for the determination of bismuth content 钢铁及合金化学分析方法 半二甲酚橙光度法测定铋量 |
China National Standards semixylenol |
 English PDF |
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