METHOD AND APPARATUS FOR EVALUATING A MEMBRANE

摘要

A method and apparatus for evaluating a porous membrane. The method includes supplying a fluid to a first side of a wetted membrane at a pressure that is greater than the pressure on a second side of the membrane which is at a pressure greater than atmospheric pressure. The rate of transfer of the fluid from the first side to the second side is measured. The invention also includes an apparatus that includes a membrane mounted in a housing that divides the housing into a first compartment and a second compartment. A first fluid is contained in the first compartment at a pressure greater than the pressure in the second compartment. A second fluid is contained in the second compartment at a pressure greater than atmospheric pressure, and a measuring device is in communication with the first compartment, the second compartment, or both compartments.