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.

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Products (81)

  • Qualitative Papers/ Grade 292 a / 460 × 570 mm Sheets
    Pieces
    100
    Item no.
    FT-2-215-460570
    Grade
    292 a
    Retention Rate
    4–7 µm
    Filter Format
    Sheets
    Dimensions
    460 x 570 mm

    $298.00

  • Qualitative Papers/ Grade 292 / 460 x 570 mm Sheets
    Pieces
    100
    Item no.
    FT-2-205-460570
    Grade
    292
    Retention Rate
    5–8 µm
    Filter Format
    Sheets
    Dimensions
    460 x 570 mm

    $298.00

  • Qualitative Papers/ Grade 132 / ⌀ 385 mm Filter Discs
    Pieces
    100
    Item no.
    FT-3-329-385
    Grade
    132
    Retention Rate
    5–7 µm
    Filter Format
    Discs
    Dimensions
    N/A

    $125.00

  • Qualitative Papers/ Grade 292 / ⌀ 30 mm Filter Discs
    Pieces
    100
    Item no.
    FT-3-205-030
    Grade
    292
    Retention Rate
    5–8 µm
    Filter Format
    Discs
    Dimensions
    N/A

    $12.10

  • Qualitative Papers/ Grade 292 / ⌀ 25 mm Filter Discs
    Pieces
    100
    Item no.
    FT-3-205-025
    Grade
    292
    Retention Rate
    5–8 µm
    Filter Format
    Discs
    Dimensions
    N/A

    $10.00

  • Qualitative Papers/ Grade 132 / ⌀ 70 mm Filter Discs
    Pieces
    100
    Item no.
    FT-3-329-070
    Grade
    132
    Retention Rate
    5–7 µm
    Filter Format
    Discs
    Dimensions
    N/A

    $13.40

  • Qualitative Papers/ Grade 132 / ⌀ 150 mm Folded Filters
    Pieces
    100
    Item no.
    FT-4-329-150
    Grade
    132
    Retention Rate
    5–8 µm
    Filter Format
    Folded
    Dimensions
    N/A

    $53.60

  • Qualitative Papers/ Grade 292 / ⌀ 42 mm Filter Discs
    Pieces
    100
    Item no.
    FT-3-205-042
    Grade
    292
    Retention Rate
    5–8 µm
    Filter Format
    Discs
    Dimensions
    N/A

    $12.10

  • Qualitative Papers/ Grade 292 / ⌀ 15 mm Filter Discs
    Pieces
    100
    Item no.
    FT-3-205-015
    Grade
    292
    Retention Rate
    5–8 µm
    Filter Format
    Discs
    Dimensions
    N/A

    $9.10

  • Qualitative Papers/ Grade 292 a / ⌀ 500 mm Filter Discs
    Pieces
    100
    Item no.
    FT-3-215-500
    Grade
    292 a
    Retention Rate
    4–7 µm
    Filter Format
    Discs
    Dimensions
    N/A

    $268.00

  • Qualitative Papers/ Grade 292 / ⌀ 20 mm Filter Discs
    Pieces
    100
    Item no.
    FT-3-205-020
    Grade
    292
    Retention Rate
    5–8 µm
    Filter Format
    Discs
    Dimensions
    N/A

    $10.00

  • Qualitative Papers/ Grade 132 / ⌀ 110 mm Filter Discs
    Pieces
    100
    Item no.
    FT-3-329-110
    Grade
    132
    Retention Rate
    5–7 µm
    Filter Format
    Discs
    Dimensions
    N/A

    $18.30

  • Qualitative Papers/ Grade 292 a / ⌀ 150 mm Filter Discs
    Pieces
    100
    Item no.
    FT-3-215-150
    Grade
    292 a
    Retention Rate
    4–7 µm
    Filter Format
    Discs
    Dimensions
    N/A

    $31.70

  • Qualitative Papers/ Grade 292 a / ⌀ 125 mm Filter Discs
    Pieces
    100
    Item no.
    FT-3-215-125
    Grade
    292 a
    Retention Rate
    4–7 µm
    Filter Format
    Discs
    Dimensions
    N/A

    $23.10

  • Qualitative Papers/ Grade 292 / ⌀ 175 mm Filter Discs
    Pieces
    100
    Item no.
    FT-3-205-175
    Grade
    292
    Retention Rate
    5–8 µm
    Filter Format
    Discs
    Dimensions
    N/A

    $42.60

  • Results per page: | |

    High-purity, Qualitative Filter Papers

    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

    132

    Refined pulp and Linters

    80

    0.17

    20

    <0.02

    5 - 8

    Medium pored, medium-slow rate of filtration

    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


  • Wet-strengthened Filter Papers for Qualitative Analyses
    Item no.
    M_Qualitative_Filter_Papers_wetstrengthened

    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%.