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%.

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Products (141)

  • Qualitative Filter Papers/ Grade 1289 / 110 mm Folded Discs
    Pieces
    100
    Item no.
    FT-4-207-110
    Grade
    1289
    Retention Rate
    8–12 µm
    Filter Format
    Folded
    Dimensions
    N/A

    $53.60

  • Qualitative Filter Papers/ Grade 1288 / 185 mm Folded Discs
    Pieces
    100
    Item no.
    FT-4-206-185
    Grade
    1288
    Retention Rate
    12–15 µm
    Filter Format
    Folded
    Dimensions
    N/A

    $62.20

  • Qualitative Filter Papers/ Grade 1288 / 320 mm Folded Discs
    Pieces
    100
    Item no.
    FT-4-206-320
    Grade
    1288
    Retention Rate
    12–15 µm
    Filter Format
    Folded
    Dimensions
    N/A

    $152.00

  • Qualitative Filter Papers/ Grade 293 / 55 mm Discs
    Pieces
    100
    Item no.
    FT-3-211-055
    Grade
    293
    Retention Rate
    1–2 µm
    Filter Format
    Discs
    Dimensions
    N/A

    $13.40

  • Qualitative Filter Papers/ Grade 1292 / 185 mm Discs
    Pieces
    100
    Item no.
    FT-3-210-185
    Grade
    1292
    Retention Rate
    5–8 µm
    Filter Format
    Discs
    Dimensions
    N/A

    $46.30

  • Qualitative Papers/ Grade 1288
    Pieces
    100
    Item no.
    FT-3-206-400
    Grade
    1288
    Retention Rate
    12–15 µm
    Filter Format
    Discs
    Dimensions
    N/A

    $166.00

  • Qualitative Filter Papers/ Grade 1289 / 240 mm Discs
    Pieces
    100
    Item no.
    FT-3-207-240
    Grade
    1289
    Retention Rate
    8–12 µm
    Filter Format
    Discs
    Dimensions
    N/A

    $73.10

  • Qualitative Filter Papers/ Grade 1289 / 125 mm Discs
    Pieces
    100
    Item no.
    FT-3-207-125
    Grade
    1289
    Retention Rate
    8–12 µm
    Filter Format
    Discs
    Dimensions
    N/A

    $23.10

  • Qualitative Filter Papers/ Grade 1292 / 125 mm Folded Discs
    Pieces
    100
    Item no.
    FT-4-210-125
    Grade
    1292
    Retention Rate
    5–8 µm
    Filter Format
    Folded
    Dimensions
    N/A

    $53.60

  • Qualitative Filter Papers/ Grade 1290 / 90 mm Folded Discs
    Pieces
    100
    Item no.
    FT-4-208-090
    Grade
    1290
    Retention Rate
    3–5 µm
    Filter Format
    Folded
    Dimensions
    N/A

    $139.00

  • Qualitative Filter Papers/ Grade 1291 / 240 mm Folded Discs
    Pieces
    100
    Item no.
    FT-4-209-240
    Grade
    1291
    Retention Rate
    2–3 µm
    Filter Format
    Folded
    Dimensions
    N/A

    $98.70

  • Qualitative Filter Papers/ Grade 1292 / 90 mm Folded Discs
    Pieces
    100
    Item no.
    FT-4-210-090
    Grade
    1292
    Retention Rate
    5–8 µm
    Filter Format
    Folded
    Dimensions
    N/A

    $139.00

  • Qualitative Filter Papers/ Grade 1288 / 270 mm Folded Discs
    Pieces
    100
    Item no.
    FT-4-206-270
    Grade
    1288
    Retention Rate
    12–15 µm
    Filter Format
    Folded
    Dimensions
    N/A

    $116.00

  • Qualitative Filter Papers/ Grade 293 / 270 mm Folded Discs
    Pieces
    100
    Item no.
    FT-4-211-270
    Grade
    293
    Retention Rate
    1–2 µm
    Filter Format
    Folded
    Dimensions
    N/A

    $113.00

  • Qualitative Filter Papers/ Grade 1289/ 90 mm Folded Discs
    Pieces
    100
    Item no.
    FT-4-207-090
    Grade
    1289
    Retention Rate
    8–12 µm
    Filter Format
    Folded
    Dimensions
    N/A

    $139.00

  • Results per page: | |

    Wet-strengthened Filter Papers for Qualitative Analyses

    Grade

    Material

    Weight
    (g/m2)

    Thickness
    (mm)

    Wet Bursting
    Strength (kPa)

    Ash content (%)

    Particle
    retention (µm)

    Properties

    1288

    Refined pulp and Linters

    84

    0.21

    ≥30

    <0.1

    12 - 15

    Wide pored, fast rate of filtration

    1289

    Refined pulp and Linters

    84

    0.21

    ≥30   

    <0.1

    8 - 12

    Medium pored, medium-fast rate of filtration

    1292

    Refined pulp and Linters

    84

    0.17

    ≥30

    <0.1

    5 - 8

    Medium pored, moderately fast rate of filtration

    1290

    Refined pulp and Linters

    84

    0.15

    ≥30

    <0.1

    3 - 5

    Narrow pored, slow rate of filtration

    1291

    Refined pulp and Linters

    84

    0.15

    ≥30

    <0.1

    2 - 3

    Fine pored, very slow rate of filtration

    293

    Refined pulp and Linters

    80

    0.15

    ≥20

    <0.1

    1 - 2

    Very fine pored, very slow rate of filtration


  • High-purity, Qualitative Filter Papers
    Item no.
    M_Qualitative_Filter_Papers_Highpurity

    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.