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| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| GB/T 15456-2019 |
Determination of the chemical oxygen demand in industrial circulating cooling water—Permanganate index method 工业循环冷却水中化学需氧量（COD）的测定 高锰酸盐指数法 |
China National Standards water—Permanganate |
 English PDF |
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