Type: Very slow qualitative flat filter paper
Weight (DIN 53104): 80 g/m²
Thickness: 0.16 mm
Porosity (pore size): 2–4 µm
Filtration speed (DIN 53137): 200 s
Burst strength: > 20 kg/cm²
Filtration speed: Very slow
Retention range: Very fine particles, fine precipitates
Filtration type: Gravity
Shape: Flat discs
Available diameters (mm): 45, 47, 55, 70, 90, 110, 125, 150, 185, 210, 240, 270, 320, 400
Typical applications: Qualitative analyses requiring maximum clarification; filtration of very fine precipitates; sample preparation before chemical, spectroscopic or gravimetric analysis
Packaging: Pack of 100 flat filters
Brand: AllFilter
Very slow qualitative flat filter paper | AllFilter
AllFilter
| SKU | Ø | Price | Available | Amount Basket | ||
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| FL.ASP1-45-100 | 45 mm |
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| FL.ASP1-47-100 | 47 mm |
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| FL.ASP1-55-100 | 55 mm |
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| FL.ASP1-70-100 | 70 mm |
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| FL.ASP1-90-100 | 90 mm |
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| FL.ASP1-110-100 | 110 mm |
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| FL.ASP1-125-100 | 125 mm |
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| FL.ASP1-150-100 | 150 mm |
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| FL.ASP1-185-100 | 185 mm |
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| FL.ASP1-210-100 | 210 mm |
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| FL.ASP1-240-100 | 240 mm |
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| FL.ASP1-270-100 | 270 mm |
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| FL.ASP1-320-100 | 320 mm |
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| FL.ASP1-400-100 | 400 mm |
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Very fine 2–4 µm porosity: excellent retention of the finest particles.
Very slow filtration (200 s): maximum clarification for demanding analyses.
Wide diameter range (45–400 mm): compatible with most laboratory funnels.
AllFilter very slow qualitative flat filter papers are intended for applications where filtrate clarity is critical. With a 2–4 µm pore size and a filtration time of 200 s (DIN 53137), they efficiently retain very fine particles and precipitates, providing maximum clarification of solutions. Their 80 g/m² basis weight, 0.16 mm thickness and burst strength greater than 20 kg/cm² ensure good mechanical stability under gravity filtration. Available in diameters from 45 to 400 mm and supplied in packs of 100, they are particularly suitable for chemistry, environmental and quality‑control laboratories.
| Technical features |