Water Vapor Transmission Rate (WVTR)
Water vapor transmission rate (WVTR) testing determines how well a material holds moisture, also called the barrier effect. WVTR tests are often done for packages, films, paper, board and textiles. It is also known as water vapor transmission rate (WVTR) or moisture vapor transmission rate (MVTR).

AquaSense 7100 - Water Vapor Transmission Rate Analyser
Property: water vapor transmission rate (wvtr)

EZ-Cup Vapometer Permeability Cup
Property: water vapor transmission rate (wvtr)

Water Vapor Transmission Rate Analyzer AquaSense 7101
Application: beverages, pharmaceutical and medical
Property: water vapor transmission rate (wvtr)