Nylon, PTFE, PVDF, PP, CA, PES, MCE, 25, 47mm Diameter 0.22, 0.45 micron - Glass Fibre, use as pre filters for faster flow higher sample capacity
SPEED ? : Depends on Viscosity of matrix) hence temperature . . . . . . ( 20deg can speed up x2 55deg C max recommended if PP in the system eg Syringe Filters , polarity matching of membrane material and matrix Proportional to Disc Surface Are 90mm(x13) >> 47 (x3.7times) > 25mm (x1) . . . everthing else being equal Composite multi-later membranes are inherently faster ( intermediate layers may be temperature suspect eg PP) eg compare Whatman PVDF GD/X Syringe Filter in 25mm
