TAPPI T460 - Air Resistance of Paper (Gurley Method)
C190H Air Permeability Tester applies volume method, and is used for the gas permeability test of battery diaphragm, breathable membrane and related polymer material.
TQD-G1 is professionally for air permeability test of decorating materials used in cars, e.g. polyurethane, expanded plastics, PVC, leather, textiles, non-woven.
TQD-G1A Air Permeability Tester is used for air permeability test of automotive interior materials and air resistance tester of paper.