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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.

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Products (253)

Qualitative & Technical Papers, Smooth/ Grade 100/N

$312.80

Grade
100/N
Filter Format
Reels
Qualitative & Technical Papers, Smooth/ Grade 100/N

$409.40

Grade
100/N
Filter Format
Reels
Qualitative & Technical Papers, Smooth/ Grade 3 S/h

$196.70

Grade
3 S/h
Filter Format
Sheets
Qualitative & Technical Papers, Smooth/ Grade 3 w

$80.00

Grade
3 w
Filter Format
Sheets
Qualitative & Technical Papers, Smooth/ Grade 4 b

$121.00

Grade
4 b
Filter Format
Sheets

  • Made of refined pulp and cotton linters with an > 95% α-cellulose content
  • Ash content between 0.1 – 0.15% (grade 100/N < 0.1%)
  • Wet-strengthened

Brochure

Carte da filtro per il laboratorio e l’industria
it 9.0 MB
Papiers filtres pour les laboratoires et l’industrie
fr 10.7 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 (US and Canada)
en 9.6 MB
Laboratory Filtration Products
en 21.9 MB
High-purity, Qualitative Filter Paper

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%.

Crêped Filter Papers for Qualitative & Technical Analyses

Crêped filter papers are mostly used for the rapid filtration of relatively coarse precipitates; because of their crêped structure they provide a larger filtration area than smooth filter papers. Grades with a wet burst resistance > 30 kPa are referred to as wet-strengthened and are therefore suitable for pressure or vacuum filtration.