Type: Ultra‑slow qualitative flat filter paper
Weight (DIN 53104): 100 g/m²
Thickness: 0.19 mm
Porosity (pore size): ≈ 1.3 µm
Filtration speed (DIN 53137): 300 s
Burst strength: > 20 kg/cm²
Filtration speed: Ultra slow
Retention range: Very fine particles, fine precipitates, near‑submicron residues
Filtration type: Gravity
Shape: Flat discs
Available diameters (mm): 70, 90, 110, 125, 150, 185, 240
Typical applications: Highly demanding qualitative and gravimetric analyses; filtration of very fine precipitates; sample preparation prior to trace‑level determinations
Packaging: Pack of 100 flat filters
Brand: AllFilter
Ultra‑slow qualitative flat filter paper | AllFilter
AllFilter
| SKU | Ø | Price | Available | Amount Basket | ||
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| FL.AUP1-70-100 | 70 mm |
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| FL.AUP1-90-100 | 90 mm |
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| FL.AUP1-110-100 | 110 mm |
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In stock |
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| FL.AUP1-125-100 | 125 mm |
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In stock |
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| FL.AUP1-150-100 | 150 mm |
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In stock |
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| FL.AUP1-185-100 | 185 mm |
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In stock |
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| FL.AUP1-240-100 | 240 mm |
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In stock |
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Ultra‑fine porosity (~1.3 µm): maximum retention of the finest particles.
Ultra‑slow filtration (300 s): outstanding clarification and filtrate purity.
100 g/m² basis weight: good mechanical strength despite very tight porosity.
The AllFilter ultra‑slow qualitative flat filter paper is designed for applications where filtrate purity is critical. With an approximate pore size of 1.3 µm and a filtration time of 300 s (DIN 53137), it efficiently retains the finest particles and delivers exceptional clarification of solutions. Its 100 g/m² basis weight, 0.19 mm thickness and burst strength greater than 20 kg/cm² provide reliable mechanical stability despite the very tight structure. Available in diameters from 70 to 240 mm and supplied in packs of 100 filters, it is particularly suitable for analytical chemistry, environmental and QC laboratories working on fine determinations or trace analyses.
| Technical features |