Application W401 water vapor permeability analyzer is to test the water vapor transmission rate (WVTR) of films or sheets materials. Applied to: 1) Plastic film, composite film, aluminum foil, aluminized film,etc; 2) Sheet, panel, rubber, ceramics,etc; 3) Packaging containers, such as: glass, bottle, cans, boxes, etc; 4) Expanding application: solar panel, LCD film, medical patch, etc. Widely used in quality inspection organizations, drug control institutions, research institutes, packaging, thin film, food companies, pharmaceutical enterprises, personal care industry, electronics industry and so on. Standard GB/T 26253-2010 ， YBB 00092003-2015 ， BS EN ISO 15106-2-2005 ， ASTM F1249-2013，JIS K7129-2008