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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 (124)

Purple Dot Quantitative Filter Papers / Grade 393 / 580 x 580 mm Sheets

$565.00

100 Pieces

These 580 x 580 mm very slow filtering, purple dot filter paper sheets 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.

Purple Dot Quantitative Filter Papers / Grade 393 / 460 × 570 mm Sheets

$415.00

100 Pieces

These 460 x 570 mm very slow filtering, purple dot filter paper sheets 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.

Purple Dot Quantitative Filter Papers / Grade 393 / 340 × 440 mm Sheets

$133.00

100 Pieces

These 340 x 440 mm very slow filtering, purple dot filter paper sheets 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.

Blue Dot Quantitative Filter Papers / Grade 391 / 580 x 580 mm Sheets

$565.00

100 Pieces

These 580 x 580 mm very slow filtering, blue dot filter paper sheets 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.

White Dot Quantitative Filter Papers / Grade 389 / 580 x 580 mm Sheets

$550.00

100 Pieces

These 580 x 580 mm fast filtering, black dot filter paper sheets 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.

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

389 F

(yellow 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

Brochure

Papiers filtres pour les laboratoires et l’industrie
fr 6.3 MB
Filter Papers for the Laboratory and Industry
en 6.4 MB
Carte da filtro per il laboratorio e l’industria
it 6.3 MB

Catalog

Laboratory Filtration Products
en 8.2 MB
High-purity, Qualitative Filter Papers

These paper grades are used for analytical purposes that require a low ash content.

Grades 292 and 292a are especially suitable for soil analyses because they are low in nitrogen. For phosphate or sodium determination, we recommend grades 131 and 132.

Wet-strengthened Filter Papers for Qualitative Analyses

These qualitative filter papers are essentially used for analytical purposes and routine analyses, whenever no gravimetric analyses are required. They are wet-strengthened and can be used for pressure and vacuum filtration. They are made of refined pulp and linters with an > 95% α-celluloose content, are very pure with an ash content < 0.1%.