NBN EN ISO 7783:2018

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

ACTIVE

About this standard

Languages
German, English and French
Type
NBN
Standards committee
CEN/TC 139 (Paints and varnishes)
Status
ACTIVE
Publication date
27 November 2018
Replaces
NBN EN ISO 7783:2011
ICS Code
87.040 (Paints and varnishes)
Withdrawn Date
Price
€ 92,00

Summary

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.