Grade No. 4 Filter Paper, Whatman
For rapid filtering with excellent retention of coarse particles and gelatinous precipitates. Good rapid filter for routine cleanup of biological fluids or organic extracts during analysis. Also for air pollution monitoring where high flow rates are required.
| Whatman Grade No. 4
Filter Paper |
| Porosity: |
Coarse |
| Flow Rate: |
Fast |
| Particle Retention: |
20–25 µm |
| Diameter, cm | Whatman No. | Unit | Price | | 4.25 | 1004-042 | Pack of 100 | $9.09 | | 5.5 | 1004-055 | Pack of 100 | $10.83 | | 7 | 1004-070 | Pack of 100 | $11.25 | | 9 | 1004-090 | Pack of 100 | $13.99 | | 11 | 1004-110 | Pack of 100 | $17.59 | | 12.5 | 1004-125 | Pack of 100 | $23.26 | | 15 | 1004-150 | Pack of 100 | $29.47 | | 18.5 | 1004-185 | Pack of 100 | $44.46 | | 24 | 1004-240 | Pack of 100 | $76.63 | | 32 | 1004-320 | Pack of 100 | $145.29 |
Whatman, Grade No. 4,
Filter Paper, number 4, filteration, filter, prefilter,
filterting
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