Browsing articles tagged with " water vapour permeability analyzer"
Jan
30
2011
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Water Vapor Permeability of Cosmetic Packaging

Water Vapor Permeability Testing is mainly affect factor for cosmetic packaging. Through WVTR testing, technical indexes for control and adjustment of packaging materials can be achieved so as to meet the varied application needs. Take PERME W3/330 Water Vapor Transmission Rate Testing System as an example. Clamp the specimen in between the testing chamber, a flow of constant stable nitrogen flows in one side of the film and dry nitrogen flows in the other side. Owing to the humidity [...]

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