Filter paper

Characteristics:Glass fibre paper 100% borosilicate.Chemically inert.Free of binding agents.Depth filter.High carrying capacity.Resistant to temperatures up to 500°C.Structure that is as fine as a hair for strong water absorption.GF/A:Fine retention, smooth flow and good loading capacity. Filter for general use: filtration of water, algae-based cultures and bacteria cultures. Control of air pollution.GF/B:Three times thicker than GF/A, so more sturdiness and a greater loading capacity is obtained.GF/C:Fine retention and smooth flow. Control of potable water and natural and industrial waste. Higher loading capacity.GF/D:Very smooth flow and fast filtration. Thick filter with high loading capacity. Conceived as membrane front filter.GF/F:Excellent retention and ideal for filtration of fine parts.934-AH:Smooth surface and resistant to temperatures above 500°C. Environment analyses. Air and water pollution. Cell harvest. Liquid scintillation counting.GMF 150 - 1 µm:Multilayer filter with progressive retention of 10 µm to 1,2 µm.GMF 150 - 2 µm:Multilayer filter with progressive retention of 10 µm to 2,4 µm.QM-A:Sampling of air, acid gases, chimneys, flues and aerosols. Model Retention in liquid (µm) Air stream (s/100 ml/in²) Basis weight (g/m²) Density (µm) GF/A 1,6 4,3 53 260 GF/B 1 12 143 675 GF/C 1,2 6,7 53 260 GF/D 2,7 2,2 121 675 GF/F 0,7 19 75 420 934-AH 1,5 3,7 64 435 GMF 150 - 1 µm 1,2 3,1 139 730 GMF 150 - 2 µm 2,4 1,5 149 750 QM-A 2,2 6,4 85 450

Cellulose filters made from high quality cotton. The filters are used in qualitative analysis techniques to determine and identify substances. Some grades are reinforced with a stable resin, making them resistant to moisture. Grade Filtration rate / aspect Retention (µm) Thickness (µm) Weight (g/m²) 1 average 11 180 88 2 average 8 190 103 3 average - thick 6 390 187 4 fast 20-25 205 96 5 slow 2,5 200 98 6 average - slow 3 180 105

Cellulose filters made from high quality cotton. The filters are used in qualitative analysis techniques to determine and identify substances. Some grades are reinforced with a stable resin, making them resistant to moisture. Grade Filtration rate / aspect Retention (µm) Thickness (µm) Weight (g/m²) 91 curled 10 205 71 93 average speed 10 145 67 113 fast, curled 30 420 125 114 fast, smooth 25 190 77

Cellulose filters made from high quality cotton. The filters are used in qualitative analysis techniques to determine and identify substances. Some grades are reinforced with a stable resin, making them resistant to moisture. Products from high quality cotton fibers. High purity filter for a wide range of critical applications. 0,007% ash maximum. Grade Filtration rate / aspect Retention (µm) Thickness (µm) Weight (g/m²) 40 average 8 210 95 41 fast 20-25 220 85 42 slow 2,5 200 100 43 average - fast 16 220 95 44 slow - average 3 180 80

Cellulose filters made from high quality cotton. The filters are used in qualitative analysis techniques to determine and identify substances. Some grades are reinforced with a stable resin, making them resistant to moisture. Save time with the folded format: There is no need to fold the filters in four.Larger filtration surface.Preserves the filtration rate of the filter: no premature clogging.Folding without affecting the technical characteristics of the filter. Grade Filtration rate / aspect Retention (µm) Thickness (µm) Weight (g/m²) 2V average 8 190 103 113V fast, curled 30 420 125 114V fast, smooth 25 190 77

Cellulose filters made from high quality cotton. The filters are used in qualitative analysis techniques to determine and identify substances. Some grades are reinforced with a stable resin, making them resistant to moisture. Hardened low ash:Treatment with strong acids to improve chemical resistance and strength after wetting. Smooth and strong surface for the recovery of the precipitates. 0,015% ash maximum. Hardened without ash:Treatment with acids for improved strength after wetting in combination with a very low ash residue. Smooth and strong surface for a large variety of manipulations. 0,006% ash maximum. Grade Filtration rate / aspect Retention (µm) Thickness (µm) Weight (g/m²) 50 slow 2,7 115 97 52 average 7 175 101 54 very fast 20-25 185 92 540 average 8 160 88 541 fast 20-25 155 82 542 slow 2,7 150 93

2 types:Common filtering paper or absorbing paper, per 7 kg pack, sheets of 42 x 52 cm , 64 g/m², approximately 500 sheets, folded and non folded. Jozef paper, 350 x 500 mm per pack of 500 sheets.

Hydrophobic filter paper absorbs the aqueous phase and allows the organic phase to pass without any trace of the aqueous phase.Ideal replacement for conventional funnels. Handy during solvent extraction in a battery.