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Specifications: Cellulose Acetate Membrane

Pore Size () Bubble Point1 Flow Rate2 Porosity3 (%) Thickness () Weight (mg/cm2) Density (g/cm2) Mimimum
Burst Pressure4 (kg/
cm2)
kg/cm2 PSI   Water (ml/min/cm2) Air (l/min/cm2)
3.0 0.4 5.7 440 54 78 135 4.0 0.3 > 0.7
0.8 1.0 14.2 160 13.5 72 125 4.7 0.39 /font> 1.0
0.45 2.6 37 35 4.0 67 125 5.5 0.44 /font> 2.0
0.2 3.3 47 16 1.9 66 125 5.8 0.46 /font> 2.0
  • Wetting time: < 3 seconds to wet a 47 mm diameter disc with aqueous 1% methylene blue
  • Rf (refractive index) = 1.47
  • Maximum operating temperature = 180C
   DEFINITIONS:
  1. Bubble point is the minimum pressure required to force air through a membrane which has been prewet with water
  2. Flow Rate indicates initial flow rate at 10 PSI using a KGS 47 filter holder
        Water: using water prefiltered to 0.1 pore size
        Air: using prefiltered nitrogen at 10 psi
  3. Porosity refers to the percent open area
  4. Burst pressure is the minimum pressure required to rupture exactly 1 cm2 area of dry unsupported membrane
  

Ash Content of White Plain Cellulose Acetate Membrane Filters (ppm)

Al <5.0 K 2.0 Ni <0.5
Ca 36.4 Li <0.5 Pb <0.5
Cd <0.1 Mg 1.9 Si 7.8
Cr 2.2 Mn <0.5 Sn <0.5
Cu 1.2 Mo <0.5 Ti <5.0
Fe 1.6 Na 5.9 Zn 0.6

Chemical Compatibility

 

Also available in:   Cartridge format
    Disposable syringe filter units

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