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Keyword:
| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| HJ 1287-2023 |
Exhaust gas from stationary pollution sources - Determination of smoke blackness - Ringelmann telescope method {译} 固定污染源废气 烟气黑度的测定 林格曼望远镜法 |
China Environment Industry
Standards blackness |
 English PDF |
| HG/T 4609-2014 |
Non blackness refined reclaimed rubber 浅色精细再生橡胶 |
China Chemical Industry
Standards blackness |
English PDF |
| HJ/T 398-2007 |
Stationary source emission. Determination of blackness of smoke plunms. Ringelmann smoke chart 固定污染源排放 烟气黑度的测定 林格曼烟气黑度图法 |
China Environmental Protection Industry
Standards blackness |
English PDF |
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