Water Vapour Permeability Tester measures the weight of water vapours absorbed by a sample of leather that is determined by fixing a circular piece of leather over a cylindrical cavity in a metal container having distilled water inside it. The Permeability Tester is held firmly against the lip of the cavity and allowed to come in contact with the vapours left off by the water for a specified period of time. The Permeability Tester gains in weight because of absorption of vapours from which the value of water vapour absorption is calculated. Water Vapour Permeability Tester offers accuracy in its result and it find wide application in leather industries and also in other sectors.
