Published
ISO 2528:2017 specifies a method for the determination of the water vapour transmission rate (often erroneously called "permeability") of sheet materials.
This method is not generally recommended for use if the transmission rate is expected to be less than 1 g/m2 per day or for materials thicker than 3 mm. In such cases the method specified in ISO 9932 is preferred.
The method cannot be applied to film materials that are damaged by hot wax or that shrink to an appreciable extent under the test conditions used.
For some purposes it may be necessary to determine the transmission rate of creased material; a procedure for this is given in Annex A.
Revises
ISO 2528:1995
PUBLISHED
ISO 2528:2017
90.92
Standard to be revised
Nov 11, 2023
IN_DEVELOPMENT
ISO/WD 2528
Sheet materials — Determination of water vapour transmission rate (WVTR) — Gravimetric (dish) method
60.60 Standard published
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