Porosity & Permeability Testing is a premier provider of comprehensive testing for liquid extrusion porosimetry and membrane testing. In addition to porosimetry, our extensive service offerings also include many cutting-edge testing technologies such as gas and liquid permeability testing, microflow testing, and new mercury-free porosimetry. We provide precision liquid extrusion porosimetry testing in several different industries and offer various products for rock core permeability testing, membrane integrity testing, and pore size testing.