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 (199)

  • Smooth Filter Paper Discs for Qualitative & Technical Analyses, Grade C 140
  • Qualitative & Technical Papers, Smooth/ Grade C 140
    Pieces
    100
    Item no.
    FT-2-356-240400
    Grade
    C 140
    Filter Format
    Sheets
    Dimensions
    240 × 400 mm
    Filter Diameter
    N/A

    $76.80

  • Qualitative & Technical Papers, Smooth/ Grade 100/N
    Item no.
    FT-2-328-290430
    Grade
    100/N
    Filter Format
    Sheets
    Dimensions
    290 × 430 mm
    Filter Diameter
    N/A

    $444.00

  • Qualitative & Technical Papers, Smooth/ Grade 3 hw
    Pieces
    100
    Item no.
    FT-3-303-045
    Grade
    3 hw
    Filter Format
    Discs
    Dimensions
    N/A
    Filter Diameter
    ⌀ 45 mm

    $9.50

  • Qualitative & Technical Papers, Smooth/ Grade C 140
    Pieces
    100
    Item no.
    FT-2-356-089140
    Grade
    C 140
    Filter Format
    Sheets
    Dimensions
    89 × 140 mm
    Filter Diameter
    N/A

    $13.40

  • Qualitative & Technical Papers, Smooth/ Grade 3 hw
    Pieces
    100
    Item no.
    FT-3-303-040
    Grade
    3 hw
    Filter Format
    Discs
    Dimensions
    N/A
    Filter Diameter
    ⌀ 40 mm

    $9.50

  • Qualitative & Technical Papers, Smooth/ Grade 4 b
    Pieces
    100
    Item no.
    FT-2-309-900900
    Grade
    4 b
    Filter Format
    Sheets
    Dimensions
    900 × 900 mm
    Filter Diameter
    N/A

    $292.00

  • Qualitative & Technical Papers, Smooth/ Grade 4 b
    Pieces
    100
    Item no.
    FT-2-309-210297
    Grade
    4 b
    Filter Format
    Sheets
    Dimensions
    210 × 297 mm
    Filter Diameter
    N/A

    $47.50

  • Qualitative & Technical Papers, Smooth/ Grade 100/N
    Piece
    1
    Item no.
    FT-1-328-1501000
    Grade
    100/N
    Filter Format
    Reels
    Dimensions
    150 mm × 1,000 m
    Filter Diameter
    N/A

    $457.00

  • Qualitative & Technical Papers, Smooth/ Grade 3 hw
    Pieces
    1,000
    Item no.
    FT-3-303-015
    Grade
    3 hw
    Filter Format
    Discs
    Dimensions
    N/A
    Filter Diameter
    ⌀ 15 mm

    $80.40

  • Qualitative & Technical Papers, Smooth/ Grade 6
    Pieces
    100
    Item no.
    FT-2-312-580580
    Grade
    6
    Filter Format
    Sheets
    Dimensions
    580 × 580 mm
    Filter Diameter
    N/A

    $197.00

  • Qualitative & Technical Papers, Smooth/ Grade 3 m/N
    Pieces
    100
    Item no.
    FT-2-305-580580
    Grade
    3 m/N
    Filter Format
    Sheets
    Dimensions
    580 × 580 mm
    Filter Diameter
    N/A

    $119.00

  • Qualitative & Technical Papers, Smooth/ Grade 100/N
    Pieces
    100
    Item no.
    FT-2-328-580580
    Grade
    100/N
    Filter Format
    Sheets
    Dimensions
    580 × 580 mm
    Filter Diameter
    N/A

    $129.00

  • Qualitative & Technical Papers, Smooth/ Grade C 140
    Item no.
    FT-2-356-445572
    Grade
    C 140
    Filter Format
    Sheets
    Dimensions
    445 × 572 mm
    Filter Diameter
    N/A

    $348.00

  • Qualitative & Technical Papers, Smooth/ Grade 4 b
    Pieces
    1,000
    Item no.
    FT-2-309-203203
    Grade
    4 b
    Filter Format
    Sheets
    Dimensions
    203 × 203 mm
    Filter Diameter
    N/A

    $176.00

  • Results per page: | |

    Smooth Filter Papers for Qualitative & Technical Analyses

    Grade

    Weight
    (g/m2)

    Thickness
    (mm)

    Filtration Time (s)

    Particle
    retention (µm)

    Wet Bursting
    Strength (kPa)

    Color

    Properties

    6

    80

    0.17

    15

    10 - 13

    ≥ 30

    White

    Medium-fast filtration

    3 w

    65

    0.14

    15

    9 - 13

    ≥ 15

    White

    Medium-fast filtration

    3 hw

    65

    0.14

    20

    8 - 12

    ≥ 15

    White

    Medium-fast filtration

    C 140

    140

    0.30

    20

    7 - 11

    > 50

    White

    Medium-fast filtration

    4 b

    75

    0.15

    22

    8 - 12

    ≥ 30

    White

    Medium-fast filtration

    3 m/N

    65

    0.14

    30

    7 - 10

    ≥ 30

    White

    Medium-fast filtration

    100/N

    85

    0.18

    30

    6 - 8

    ≥ 80

    White

    Medium-fast filtration, low ammonium, potassium & sodium content

    918

    85

    0.17

    45

    8 - 10

    n.a.

    Black

    Medium-fast to slow filtration, black paper, stained with a sulfur coloring

    3 S/h

    200

    0.36

    55

    5 - 7

    ≥ 15

    White

    Medium-fast to slow filtration


  • Crêped Filter Papers for Qualitative & Technical Analyses
    Item no.
    M_Qualitative_Technical_Papers_Creped

    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.

  • 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%.