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Quantitative Filter Paper

These filter papers are used for quantitative and gravimetric analyses as well as for pressure or vacuum filtration. They are made out of 100 % cotton linters with an α-cellulose content of > 98 % and are acid-washed to make the papers ashless and achieve high purity.

   

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Products (1)

142 mm Yellow Dot Quantitative Filter Paper Discs / Grade 389 F
Grade
389 F
Retention Rate
8–12 µm
Filter Format
Discs
Filter Diameter
⌀ 142 mm
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Quantitative Filter Papers

Brochure

Carte da filtro per il laboratorio e l’industria
it 2.4 MB
Filter Papers for the Laboratory and Industry
en 6.4 MB
Papiers filtres pour les laboratoires et l’industrie
fr 2.4 MB

Catalog

Laboratory Filtration Products
en 17.2 MB

Grade  

Weight g/m²

Thickness (mm)

Filtration Time (s)

 Particle retention (µm)

Precipitates

Properties

388 (black dot)  

 84

0.21

10

12-15

Coarse crystalline

Fast filtration

389 (white dot)

 84

0.19

20

8-12

Medium-fine crystalline

Medium-fast filtration, fat-free

392 (red dot)

 84

0.17

50

5-8

Fine crystalline

Medium-slow filtration

390 (green dot)

 84

0.16    

 100

3-5

Fine crystalline

Slow filtration

391 (blue dot)

 84

0.15    

180

2-3

Very fine crystalline

Very slow filtration

393 (purple dot)

100    

0.18    

300

1-2

Very fine crystalline

Very slow filtration