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EN ISO 7783:2018

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

Publication date:   Feb 14, 2019

General information

60.60 Standard published   Nov 7, 2018

CEN

CEN/TC 139 Paints and varnishes

European Norm

87.040   Paints and varnishes

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Scope

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.

Life cycle

PREVIOUSLY

WITHDRAWN
EN ISO 7783:2011

NOW

PUBLISHED
EN ISO 7783:2018
60.60 Standard published
Nov 7, 2018