Application :C1 is based on the weighing method and available for the water vapor permeability test of plastic films, aluminum foil, aluminized films, plastic composite films, textile and many others.
Principles
Test dishes filled with distilled water in a controlled dry atmosphere, a constant humidity difference is generated between two sides of the test specimen, the water vapor permeates through the specimen and into the dry side, water vapor transmission rate and other parameters can be obtained by measuring the weight changes of the test dish in different time.