Application :User can performs testing on packaging materials, such as plastic film, composite film, co-extrusion film, geo-membrane, aluminum-plated films and foils, infusion bag, sheets, paper, paper board, solar battery panel, cellophane, and various packaging materials. It can also measure permeability through containers such as bag, pouch, bottle, can, bowl, box, pharmaceuticals, healthcare, electronics etc. with optional adopters for containers..
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.