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| 指标名称 Name Index | 精萘 Refined Napthalene | 工业萘 Industrial Nathalene | ||||
| 优等品High-class | 一等品Grade One | 合格品Qualified | 优等品 High-class | 一等品 Grade One | 合格品 Qualified | |
| 外观 Appearance | 白色粉状，片状晶体 White powder, flat crystal | 白色略带微红或微黄粉状，片状晶体 White powder with pinkish or light yellow, flat crystal | 白色允许带微红或微黄粉状，片状晶体 White powder allows with pinkish or light yellow, flat crystal | |||
| 结晶点 不小于% Crystallization Point （Not less than) | 79.8 | 79.6 | 79.3 | 78.3 | 78 | 77.5 |
| 不挥发物 不大于 % Nonvolatile Matter （Not more than) | -- | 0.01 | 0.02 | 0.04 | 0.06 | 0.08 |
| 灰分 不大于 % Ash Content （Not more than) | -- | 0.006 | 0.008 | 0.01 | 0.01 | 0.02 |
| 酸洗比色 不深于 Scouring Colorimetric (Not deeper than) | No.2 | No.4 | -- | -- | ||
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