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| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| GB/T 6730.31-2017 |
Iron ores—Determination of vanadium—N-benzoyl-N-phenylhydroxylamine extraction spectrophotometric method 铁矿石 钒含量的测定 N-苯甲酰苯胲萃取分光光度法 |
China National Standards Iron ores—Determination vanadium—N |
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