Hydrophilic PTFE membrane filter bubble points are above or equal 0.1MPa and 0.06MPa respectively, pore size is 0.22μm, 0.45μm and with diameters ranging from 13mm, 25mm, 47mm to 90mm, 142mm, 293mm. PTFE membrane chemical compatibilities are superior to aqueous, organic solvents, and mixed solvents.