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| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| GB/T 1509-2016 |
Manganese ores—Determination of silicon content—Perchloric acid dehydration gravimetric method 锰矿石 硅含量的测定 高氯酸脱水重量法 |
China National Standards Manganese ores—Determination silicon |
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