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GE Healthcare
Grade 3 Qualitative Filter Papers

A standard grade filter used in qualitative analytical techniques to determine and identify materials. For use in büchner funnels.

Grade 3: 6 µm

Double the thickness of Grade 1 with still finer particle retention and excellent loading capacity; more precipitate can be held without clogging. The extra thickness gives increased wet strength and makes this grade highly suitable for use in Büchner funnels. The high absorbency is particularly valuable when the paper is used as a sample carrier. This filter is also available in the FilterCup. This is a convenient, disposable 70 mm filter funnel with a 250 ml capacity molded from polypropylene with an integral, heat bonded filter.

Grade Weight g/m2 Thickness ASH % Surface Texture LIQUID Retention
1 87 0.18 mm 0.06 Smooth 11 ?m
2 97 0.19 mm 0.06 Smooth 8 ?m
3 185 0.40 mm 0.06 Rough 5 ?m
4 92 0.21 mm 0.06 Smooth, open 20-25 ?m
5 100 0.20 mm 0.06 Smooth 2.5 ?m
CanLab No. Mfr. No. Description
01K2174 1003-323 Grade 3 Qualitative Filter Paper, Circle, 23mm
51K2174 1003-055 Grade 3 Qualitative Filter Paper, Circle, 55mm
02K2174 1003-070 Grade 3 Qualitative Filter Paper, Circle, 70mm
52K2174 1003- 090 Grade 3 Qualitative Filter Paper, Circle, 90mm
03K2174 1003-110 Grade 3 Qualitative Filter Paper, Circle, 110mm
53K2174 1003-125 Grade 3 Qualitative Filter Paper, Circle, 125mm
04K2174 1003-150 Grade 3 Qualitative Filter Paper, Circle, 150mm
29S8980 1003-185 Grade 3 Qualitative Filter Paper, Circle, 185mm
19S8980 1003-240 Grade 3 Qualitative Filter Paper, Circle, 240mm
98S8980 1003-320 Grade 3 Qualitative Filter Paper, Circle, 320mm
54F2174 1003-185 Grade 2 Qualitative Filter Paper, Circle, 185mm
22L2174 1003-917 Grade 3 Qualitative Filter Paper, Sheet, 460 x 570mm

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