Gas permeability is the ability of a barrier material to allow gases (O2, N2, CO2 etc.) to permeate through it in a specific time. Gas permeability may vary with temperature, humidity, pressure and specimen thickness.
Water vapor permeability is a measure of the passage of water vapor through a membrane. It is the rate of water vapor transmission per unit area per unit of vapor pressure differential under test conditions.
C230 Oxygen Transmission Rate Test System is designed and manufactured based on coulometric sensor method (aka. equal pressure method) and conforms to the requirements of ISO 15105-2/ASTM D3985.
OX2/231 is based on the equal pressure method, and professional applicable to the determination of oxygen transmission rate of plastic films, composite films, sheeting, plastic bottles, plastic bags and other packages.
TQD-G1 is professionally applicable to the determination of air permeability of decorating materials used in cars, e.g. polyurethane, expanded plastics, PVC, leather, textiles, non-woven and other materials.
Water Vapor Permeability Tester is for the WVTR test of flexible films, sheets, foils and packages. Test methods includes electrolytic sensor, infrared sensor, humidity sensor and cup method.