Crêped Filter Papers for Qualitative & Technical Analyses
Crêped filter papers are mostly used for the rapid filtration of relatively coarse precipitates; because of their crêped structure they provide a larger filtration area than smooth filter papers. Grades with a wet burst resistance > 30 kPa are referred to as wet-strengthened and are therefore suitable for pressure or vacuum filtration.
*Custom/bulk order quotes are provided within 24 hours of request.
Choose your product
Products (104)
Crêped Filter Papers for Qualitative & Technical Analyses
Grade | Weight | Thickness(mm) | Filtration Time (s) | Wet Bursting Strength (kPa) | Air Resistance (mbar) | Properties |
|---|---|---|---|---|---|---|
5 H/N | 85 | 0.28 | 3 | ≥ 40 | n.a. | Very fast filtration, wide-pore |
34/N | 60 | 0.20 | 4 | ≥ 50 | 2.0 | Very fast filtration |
37/N | 135 | 0.50 | 4 | ≥ 70 | 1.9 | Very fast filtration, wide-pore |
1602/N | 70 | 0.23 | 5 | ≥ 30 | n.a. | Very fast filtration |
39/N, 180 g | 180 | 0.65 | 5 | ≥ 90 | 2.5 | Very fast filtration, wide-pore |
39/N, 300 g | 300 | 0.95 | 5 | ≥ 120 | 2.5 | Very fast filtration, wide-pore |
603/N | 75 | 0.25 | 8 | ≥ 50 | n.a. | Fast filtration |
6 S/N | 145 | 0.55 | 12 | ≥ 90 | n.a. | Medium-fast filtration |
601/N | 65 | 0.19 | 13 | ≥ 30 | n.a. | Medium-fast filtration, |
67/N, 160 g | 160 | 0.65 | 13 | ≥ 60 | 5.5. | Medium-fast filtration |
These filter papers are used for routine analyses like clarification, determination of substances, but also as discs with a center hole for technical applications. Grades with a wet burst resistance > 30 kPa are referred to as wet-strengthened and are therefore suitable for pressure or vacuum filtration. White and bright particles can be easily detected with the black paper grade 918, due to the color contrast for example for the detection of fluorine or silicon in water or the detection of mycelium in mildews.