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Smooth Filter Papers for Qualitative & Technical Analyses

These filter papers are used for routine analyses like clarification, determination of substances, but also as discs with a center hole for technical applications. Grades with a wet burst resistance > 30 kPa are referred to as wet-strengthened and are therefore suitable for pressure or vacuum filtration. White and bright particles can be easily detected with the black paper grade 918, due to the color contrast for example for the detection of fluorine or silicon in water or the detection of mycelium in mildews.

   

Choose your product

Products (251)

Qualitative & Technical Papers, Smooth/ Grade 6
Retention Rate
10–13 µm
Thickness
0.17 mm
Qualitative & Technical Papers, Smooth/ Grade 3 S/h
Retention Rate
5–7 µm
Thickness
0.36 mm
Qualitative & Technical Papers, Smooth/ Grade 3 m/N
Retention Rate
7–10 µm
Thickness
0.14 mm
Qualitative & Technical Papers, Smooth/ Grade 3 hw
Dimensions
90 × 200 mm
Retention Rate
8–12 µm
Qualitative & Technical Papers, Smooth/ Grade 460/N
Dimensions
580 × 580 mm
Retention Rate
3–4 µm

Grade

Weight

(g/m²)

Thickness

(mm)

Filtration Time (s)

Particle
retention (µm)

Wet Bursting

Strength (kPa)

Color

Properties

10

120

0.33

8

11 – 16

 ≥ 30

White

Fast filtration of coarse precipitates

6

80

0.17

15

10 – 13

 ≥ 30

White

Medium-fast filtration

3 w

65

0.14

15

9 - 13

 ≥ 15

White

Medium-fast filtration

3 hw

65

0.14

20

8 - 12

 ≥ 15

White

Medium-fast filtration

C 140

140

0.30

20

7 - 11

> 50

White

Medium-fast filtration

4 b

75

0.15

22

8 - 12

 ≥ 30

White

Medium-fast filtration

3 m/N

65

0.14

30

7 - 10

≥ 30

White

Medium-fast filtration

50 S

120

0.22

30

6 – 10

≥ 20

White

Medium-fast filtration, seed testing paper

100/N

85

0.18

30

6 – 8

≥  80

White

Medium-fast filtration, low ammonium, potassium & sodium content

3 h

65

0.13

35

6 – 9

≥ 15

White

Medium-fast to slow filtration

918

85

0.17

45

8 – 10

n.a.

Black

Medium-fast to slow filtration, black paper, stained with a sulfur coloring

460/N

90

0.17

50

3 – 4

≥ 30

White

Medium-fast to slow filtration of fine precipitates

3 S/h

200

0.36

55

5 – 7

≥ 15

White

Medium-fast to slow filtration

69 k

155

0.36

65

7 -9

≥ 20

Black

Slow filtration, black activated charcoal paper

Brochure

Carte da filtro per il laboratorio e l’industria
it 4.2 MB
Papiers filtres pour les laboratoires et l’industrie
fr 6.3 MB
Filter Papers for the Laboratory and Industry
en 6.4 MB
宣传手册:实验室过滤产品精简目录
zh 19.0 MB

Catalog

Laboratory Filtration Products
en 8.2 MB