Munktell Specification for CACN membranes
SPECIFICATION FOR CELLULOSE ACETATE MEMBRANES
Bubble Point (minimum values, wetted with water):
0,2 μm . . . . . . . . . . . . . 3.5 bar 0.65 μm . . . . . . . . . . . . . . 1.3 bar
0.45 μm . . . . . . . . . . . . . 2.0 bar 0.8 μm . . . . . . . . . . . . . . 0.8 bar
Flow rates (mean values cm2 with water and △p = 1 bar (100 kPa))
0.2 μm . . . . . . . . . . . . . 22 ml/min
0.45 μm . . . . . . . . . . . . . 69 ml/min
0.65 μm . . . . . . . . . . . . . 130 ml/min
0.8 μm . . . . . . . . . . . . . 200 ml/min
Chemical Compatibility:
stable in solutions for pH range 4-8, resistant to most alcohols,
hydrocarbons and oils. See compatibility table
Extractables (in water):
less than 1%
Max. temperature resistance: 180°C
Sterilization:
autoclave (121°C or. 134°C) with g-radiation or
with ethylene oxide
Thickness (average value):
135 μm.
Validation:
Correlation bubble point values of membranes with a pore size of 0.2 μm.
For checking sterilization filtration, the Standard BCT test (Bacteria Challenge Test) was used.
