| Items | Unit | Fast speed | Medium | Slow speed |
| No.201 | No.202 | No.203 | ||
| Basis weight | GSM | 80 | 80 | 80 |
| Precipitate | / | Coarse and Gelatinous Precipitate |
Crystalline | Fine Crystalline |
| Filter speed≤ | S | 30 | 60 | 120 |
| Ash Content≤ | % | 0.01 | 0.01 | 0.01 |
| Fe Content≤ | % | 0.003 | 0.003 | 0.003 |
| Water Extracts | PH | 5-8 | 5-8 | 5-8 |
| Water Soluble Chloride≤ | % | 0.02 | 0.02 | 0.02 |
| Similar to Whatman brand | / | No.41 | No.40 | No.42 No.44 |
| Size | / | 60X60CM Diameter of Circular Filter Paper:70/90/110/125/150/180MM We can supply other specifications according to the requirement of customers. |
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