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| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| GB/T 3780.21-2006 |
Carbon black―Part 21：Determination of sieve residue for rubber compounding ingredients―Water washing method 炭黑 第21部分：橡胶配合剂筛余物的测定 水冲洗法 |
China National Standards Carbon black―Part 21：Determination |
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