Lithium Battery Separator/ Electric Vehicle Air Permeability Tester Gurley Method Product Detail Application: Based on the differential pressure method, and is professionally applicable to the determination of gas transmission rate as well as solubility coefficient, diffusion coefficient and permeability coefficient of plastic films, laminated films, high barrier materials, sheeting, metal foils, rubber, tires and permeable membranes. Lithium Battery Separator/ Electric Vehicle Air Permeability Tester Gurley Method Features: Vacuum differential pressure method Own technology 3 specimens test simultaneously and independently Computer control One-button test, test automatically through whole process High accuracy vacuum sensors embedded in 3 Chambers with independent temperature sensor Test under various RH conditions with Humidity generator (optional) Environment temperature and humidity sensor inside Permeability coefficient ,solubility coefficient and diffusion coefficient test Chambers with water bath temperature control technology Unit based on embedded system,24bit AD Multiple test modes optional Data curves display Traceable reference film calibration Supports DSM system (DSM, lab data management system)