Quantitative Filter Paper
These filter papers are used for quantitative and gravimetric analyses as well as for pressure or vacuum filtration. They are made out of 100 % cotton linters with an α-cellulose content of > 98 % and are acid-washed to make the papers ashless and achieve high purity.
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Products (130)
Grade | Weight g/m² | Thickness (mm) | Filtration Time (s) | Particle | Precipitates | Properties |
388 (black dot) | 84 | 0.21 | 10 | 12 - 15 | Coarse crystalline | Fast filtration |
389 (white dot) | 84 | 0.19 | 20 | 8 - 12 | Medium-fine crystalline | Medium-fast filtration |
389 F (yellow dot) | 84 | 0.19 | 20 | 8 - 12 | Medium-fine crystalline | Medium-fast filtration, fat-free |
392 (red dot) | 84 | 0.17 | 50 | 5 - 8 | Fine crystalline | Medium-slow filtration |
390 (green dot) | 84 | 0.16 | 100 | 3 - 5 | Fine crystalline | Slow filtration |
391 (blue dot) | 84 | 0.15 | 180 | 2 - 3 | Very fine crystalline | Very slow filtration |
393 (purple dot) | 100 | 0.18 | 300 | 1 - 2 | Very fine crystalline | Very slow filtration |
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Catalog
Grade | Weight g/m² | Thickness (mm) | Filtration Time (s) | Particle retention (µm) | Precipitates | Properties |
|---|---|---|---|---|---|---|
388 (black dot) | 84 | 0.21 | 10 | 12-15 | Coarse crystalline | Fast filtration |
389 (white dot) | 84 | 0.19 | 20 | 8-12 | Medium-fine crystalline | Medium-fast filtration, fat-free |
392 (red dot) | 84 | 0.17 | 50 | 5-8 | Fine crystalline | Medium-slow filtration |
390 (green dot) | 84 | 0.16 | 100 | 3-5 | Fine crystalline | Slow filtration |
391 (blue dot) | 84 | 0.15 | 180 | 2-3 | Very fine crystalline | Very slow filtration |
393 (purple dot) | 100 | 0.18 | 300 | 1-2 | Very fine crystalline | Very slow filtration |