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 (198)

  • Smooth Filter Paper Discs for Qualitative & Technical Analyses, Grade C 140
  • Qualitative & Technical Papers, Smooth/ Grade 918
    Pieces
    100
    Item no.
    FT-3-607-055
    Grade
    918
    Filter Format
    Discs
    Dimensions
    N/A
    Filter Diameter
    ⌀ 55 mm

    $32.90

  • Qualitative & Technical Papers, Smooth/ Grade 918
    Pieces
    100
    Item no.
    FT-3-607-040
    Grade
    918
    Filter Format
    Discs
    Dimensions
    N/A
    Filter Diameter
    ⌀ 40 mm

    $20.70

  • Qualitative & Technical Papers, Smooth/ Grade 4 b
    Pieces
    100
    Item no.
    FT-4-309-250
    Grade
    4 b
    Filter Format
    Folded
    Dimensions
    N/A
    Filter Diameter
    ⌀ 250 mm

    $76.80

  • Qualitative & Technical Papers, Smooth/ Grade C 140
    Pieces
    100
    Item no.
    FT-4-356-320
    Grade
    C 140
    Filter Format
    Folded
    Dimensions
    N/A
    Filter Diameter
    ⌀ 320 mm

    $457.00

  • Qualitative & Technical Papers, Smooth/ Grade 100/N
    Pieces
    100
    Item no.
    FT-3-328-070
    Grade
    100/N
    Filter Format
    Discs
    Dimensions
    N/A
    Filter Diameter
    ⌀ 70 mm

    $10.60

  • 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 3 w
    Pieces
    100
    Item no.
    FT-3-308-110
    Grade
    3 w
    Filter Format
    Discs
    Dimensions
    N/A
    Filter Diameter
    ⌀ 110 mm

    $12.20

  • Qualitative & Technical Papers, Smooth/ Grade 3 m/N
    Pieces
    100
    Item no.
    FT-3-305-070
    Grade
    3 m/N
    Filter Format
    Discs
    Dimensions
    N/A
    Filter Diameter
    ⌀ 70 mm

    $9.80

  • Qualitative & Technical Papers, Smooth/ Grade 3 hw
    Pieces
    100
    Item no.
    FT-4-303-125
    Grade
    3 hw
    Filter Format
    Folded
    Dimensions
    N/A
    Filter Diameter
    ⌀ 125 mm

    $46.30

  • Qualitative & Technical Papers, Smooth/ Grade 100/N
    Pieces
    100
    Item no.
    FT-3-328-120
    Grade
    100/N
    Filter Format
    Discs
    Dimensions
    N/A
    Filter Diameter
    ⌀ 120 mm

    $13.40

  • Qualitative & Technical Papers, Smooth/ Grade 100/N
    Pieces
    100
    Item no.
    FT-3-328-055
    Grade
    100/N
    Filter Format
    Discs
    Dimensions
    N/A
    Filter Diameter
    ⌀ 55 mm

    $10.60

  • Qualitative & Technical Papers, Smooth/ Grade 6
    Pieces
    100
    Item no.
    FT-3-312-240
    Grade
    6
    Filter Format
    Discs
    Dimensions
    N/A
    Filter Diameter
    ⌀ 240 mm

    $46.30

  • Qualitative & Technical Papers, Smooth/ Grade 100/N
    Pieces
    100
    Item no.
    FT-3-328-185
    Grade
    100/N
    Filter Format
    Discs
    Dimensions
    N/A
    Filter Diameter
    ⌀ 185 mm

    $26.80

  • Qualitative & Technical Papers, Smooth/ Grade 4 b
    Pieces
    100
    Item no.
    FT-3-309-125
    Grade
    4 b
    Filter Format
    Discs
    Dimensions
    N/A
    Filter Diameter
    ⌀ 125 mm

    $18.30

  • 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