Quantitative Filter Paper

These filter papers are used for quantitative and gravimetric analyses as well as for pressure or vacuum filtration. They are made out of 100 % cotton linters with an α-cellulose content of > 98 % and are acid-washed to make the papers ashless and achieve high purity.

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Products (115)

  • 150 mm Green Dot Quantitative Folded Filter Papers / Grade 390
    Pieces
    100
    Item no.
    FT-4-103-150
    Grade
    390
    Retention Rate
    3–5 µm
    Filter Format
    Folded
    Dimensions
    N/A

    $87.70

  • 150 mm Blue Dot Quantitative Filter Paper Discs / Grade 391
    Pieces
    100
    Item no.
    FT-3-104-150
    Grade
    391
    Retention Rate
    2–3 µm
    Filter Format
    Discs
    Dimensions
    N/A

    $67.00

  • 180 mm Green Dot Quantitative Filter Paper Discs / Grade 390
    Pieces
    100
    Item no.
    FT-3-103-180
    Grade
    390
    Retention Rate
    3–5 µm
    Filter Format
    Discs
    Dimensions
    N/A

    $101.00

  • 125 mm Black Dot Quantitative Filter Paper Discs / Grade 388
    Pieces
    100
    Item no.
    FT-3-101-125
    Grade
    388
    Retention Rate
    12–15 µm
    Filter Format
    Discs
    Dimensions
    N/A

    $47.50

  • 150 mm Blue Dot Quantitative Folded Filter Papers / Grade 391
    Pieces
    100
    Item no.
    FT-4-104-150
    Grade
    391
    Retention Rate
    2–3 µm
    Filter Format
    Folded
    Dimensions
    N/A

    $87.70

  • 90 mm White Dot Quantitative Filter Paper Discs / Grade 389
    Pieces
    100
    Item no.
    FT-3-102-090
    Grade
    389
    Retention Rate
    8–12 µm
    Filter Format
    Discs
    Dimensions
    N/A

    $31.70

  • 110 mm Green Dot Quantitative Folded Filter Papers / Grade 390
    Pieces
    100
    Item no.
    FT-4-103-110
    Grade
    390
    Retention Rate
    3–5 µm
    Filter Format
    Folded
    Dimensions
    N/A

    $69.40

  • 55 mm Red Dot Quantitative Filter Paper Discs / Grade 392
    Pieces
    100
    Item no.
    FT-3-105-055
    Grade
    392
    Retention Rate
    5–8 µm
    Filter Format
    Discs
    Dimensions
    N/A

    $13.40

  • 100 mm Black Dot Quantitative Folded Filter Papers / Grade 388
    Pieces
    100
    Item no.
    FT-4-101-110
    Grade
    388
    Retention Rate
    12–15 µm
    Filter Format
    Folded
    Dimensions
    N/A

    $69.40

  • 90 mm Black Dot Quantitative Filter Paper Discs / Grade 388
    Pieces
    100
    Item no.
    FT-3-101-090
    Grade
    388
    Retention Rate
    12–15 µm
    Filter Format
    Discs
    Dimensions
    N/A

    $31.70

  • 200 mm Black Dot Quantitative Folded Filter Papers / Grade 388
    Pieces
    100
    Item no.
    FT-4-101-200
    Grade
    388
    Retention Rate
    12–15 µm
    Filter Format
    Folded
    Dimensions
    N/A

    $130.00

  • 240 mm Purple Dot Quantitative Filter Paper Discs / Grade 393
    Pieces
    100
    Item no.
    FT-3-127-240
    Grade
    393
    Retention Rate
    1 µm
    Filter Format
    Discs
    Dimensions
    N/A

    $166.00

  • 125 mm Black Dot Quantitative Folded Filter Papers / Grade 388
    Pieces
    100
    Item no.
    FT-4-101-125
    Grade
    388
    Retention Rate
    12–15 µm
    Filter Format
    Folded
    Dimensions
    N/A

    $73.10

  • 90 mm Blue Dot Quantitative Filter Paper Discs / Grade 391
    Pieces
    100
    Item no.
    FT-3-104-090
    Grade
    391
    Retention Rate
    2–3 µm
    Filter Format
    Discs
    Dimensions
    N/A

    $31.70

  • 110 mm White Dot Quantitative Filter Paper Discs / Grade 389
    Pieces
    100
    Item no.
    FT-3-102-110
    Grade
    389
    Retention Rate
    8–12 µm
    Filter Format
    Discs
    Dimensions
    N/A

    $41.40

  • Results per page: | |

    Quantitative Filter Paper

    Grade  

    Weight g/m²

    Thickness (mm)

    Filtration Time (s)

     Particle retention (µm)

    Precipitates

    Properties

    388 (black dot)  

     84

    0.21

    10

    12-15

    Coarse crystalline

    Fast filtration

    389 (white dot)

     84

    0.19

    20

    8-12

    Medium-fine crystalline

    Medium-fast filtration, fat-free

    392 (red dot)

     84

    0.17

    50

    5-8

    Fine crystalline

    Medium-slow filtration

    390 (green dot)

     84

    0.16    

     100

    3-5

    Fine crystalline

    Slow filtration

    391 (blue dot)

     84

    0.15    

    180

    2-3

    Very fine crystalline

    Very slow filtration

    393 (purple dot)

    100    

    0.18    

    300

    1-2

    Very fine crystalline

    Very slow 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.

  • 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%.