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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.

   

Choose your product

Products (82)

Qualitative Papers/ Grade 292 / ⌀ 320 mm Folded Filters

$107.00

100 Pieces
Retention Rate
5–8 µm
Thickness
0.18 mm
Qualitative Papers/ Grade 292 a / ⌀ 185 mm Folded Filters

$44.00

100 Pieces
Retention Rate
4–7 µm
Thickness
0.19 mm
Qualitative Papers/ Grade 292 / ⌀ 85 mm Filter Discs

$9.80

100 Pieces
Retention Rate
5–8 µm
Thickness
0.18 mm
Qualitative Papers/ Grade 292 / ⌀ 70 mm Filter Discs

$9.60

100 Pieces
Retention Rate
5–8 µm
Thickness
0.18 mm
Qualitative Papers/ Grade 292 / ⌀ 270 mm Folded Filters

$81.00

100 Pieces
Retention Rate
5–8 µm
Thickness
0.18 mm

Grade

Material

Weight (g/m²)

Thickness

(mm)

Wet
bursting
strength
(
kPa)

Ash
content

(%)

Particle
retention (µm)

Properties

131

Refined pulp and Linters

80

0.16

20

< 0.02

3 - 5

Narrow pored, slow rate of filtration, with a chloride content (hot extract) of < 0.006 %.

132

Refined pulp and Linters

80

0.17

20

< 0.02

5 - 8

Medium pored, medium-slow rate of filtration, with a chloride content (hot extract) of < 0.006 %.

292

Cotton Linters

87

0.18

5

< 0.06

5 - 8

Medium pored, medium-slow rate of filtration

292a

Cotton Linters

97

0.19

5

< 0.06

4 - 7

Medium to narrow pored, medium-slow rate of filtration

Brochure

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

Catalog

Laboratory Filtration Products
en 8.2 MB