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| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| NB/SH/T 0838-2010 |
Determination of polycyclic aromatics (PCA) in unused lubricating base oils and asphaltene free petroleum fractions. Dimethyl sulphoxide extraction refractive index method 未使用过的润滑油基础油及无沥青质石油馏分中稠环芳烃（pca）含量的测定 二甲基亚砜萃取折光指数法 |
China Energy industry
Standards Determination polycyclic aromatics |
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