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Filtration Products
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  Ultrafiltration
 
Hydrophobic PTFE Membrane Filters (Unsupported)
  • Thin, highly porous membrane filter
  • Behaves as an absolute retentive membrane
  • Inert to most agressive solvents, including strong acids and bases
  • Operating temperature range: -120~260°C
  • Use to sterilize gasses, vent gas from aqueous solutions, or sterilize or clarify aggressive chemicals
      Hydrophobic PTFE Filter
    Magnification of Hydrophobic PTFE filter.
    Also available as syringe filter units.
     
    Product Specifications: Hydrophobic PTFE Membrane Filters
    Click here for chemical compatiblity information.
    Pore Size
    (μm)
    Bubble Point1
    Flow Rates2
    Porosity3
    (%)
    Maximum Operating Temperature
    (°C)
    Thickness
    (μm)
    MPa
    psi
    Acetone
    (mL/min/cm2)
    Air
    (L/min/cm2)
    0.10
    ≥0.12
    ≥17.4
    27.0
    -
    68
    260
    70
    0.20
    ≥0.091
    ≥13.2
    55.0
    -
    74
    260
    80
    0.50
    ≥0.063
    ≥9.1
    100
    -
    78
    260
    75
    0.80
    ≥0.039
    ≥5.7
    200
    -
    76
    260
    75
    1.00
    ≥0.031
    ≥4.5
    300
    -
    79
    260
    75
    3.00
    ≥0.013
    ≥1.9
    750
    -
    83
    260
    75
    Notes:
    1. Bubble Point is the minimum pressure required to force air through a membrane which has been prewet with isopropylalcohol.
    2. Flow rates determined under constant vacuum 0.7 kg/cm2 (10 psi).
    3. Porosity refers to the percent open area.
     
    Ordering Information: Hydrophobic PTFE Membrane Filters
    Choose the appropriate Pore Size and Membrane Diameter from the chart below to select a catalog number. Hydrophobic PTFE Membrane filters are available as nonsterile, plain white disks in the packaging listed below. Product certification is available upon request.
    For price and availablity of any membrane filter, call us at 1-800-334-7132 or click here to contact us by email.
     
    Plain White Disks
    Pore Size
    (μm)
    φ13 mm
    φ25 mm
    φ47 mm
    φ90 mm
    φ142 mm
    φ293 mm
    Package of 100
    Package of 25
    Package of 10
    0.10
    T010A013A
    T010A025A
    T010A047A
    T010A090C
    T010A142C
    T010A293D
    0.20
    T020A013A
    T020A025A
    T020A047A
    T020A090C
    T020A142C
    T020A293D
    0.50
    T050A013A
    T050A025A
    T050A047A
    T050A090C
    T050A142C
    T050A293D
    0.80
    T080A013A
    T080A025A
    T080A047A
    T080A090C
    T080A142C
    T080A293D
    1.00
    T100A013A
    T100A025A
    T100A047A
    T100A090C
    T100A142C
    T100A293D
    3.00
    T300A013A
    T300A025A
    T300A047A
    T300A090C
    T300A142C
    T300A293D
     
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