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EVS-EN ISO 7783:2018

Paints and varnishes - Determination of water-vapour transmission properties - Cup method (ISO 7783:2018)

General information
Valid from 16.11.2018
Base Documents
ISO 7783:2018; EN ISO 7783:2018
Directives or regulations
None
Standard history
Status
Date
Type
Name
16.11.2018
Main
05.12.2011
Main
This document specifies a method for determining the water-vapour transmission properties of coatings of paints, varnishes and related products. It supplements ISO 12572. As far as possible, the procedure, the definitions and the calculations have been taken over from ISO 12572. ISO 12572 can be consulted, if necessary, to obtain a better understanding of the procedure specified in this document. Water-vapour transmission rates of more than 680 g/(m2⋅d) (i.e. water-vapour diffusion-equivalent air layer thicknesses, sd, of less than 0,03 m) are not accurately quantified by the test method described in this document.
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