The PMI Capillary Flow Porometer provides fully automated through-pore analysis including bubble point, pore size distribution, mean flow pore size, hydro-head, integrity, and liquid, gas, Frazier, Gurley, and Rayl permeability. PMI's Capillary Flow Porometer is versatile -- it allows the user to test samples under compression, tension, or elevated temperature, thereby simulating operating conditions.