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About This Item

 

Full Description

ISO 7783:2018 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.

 

Document History

  1. ISO 7783:2018

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    Paints and varnishes - Determination of water-vapour transmission properties - Cup method

    • Most Recent
  2. ISO 7783:2011


    Paints and varnishes - Determination of water-vapour transmission properties - Cup method

    • Historical Version
  3. ISO 7783-2:1999


    Paints and varnishes -- Coating materials and coating systems for exterior masonry and concrete -- Part 2: Determination and classification of water-vapour transmission rate (permeability)

    • Historical Version
  4. ISO 7783-1/Cor1:1998


    Corrigendum

    • Historical Version
  5. ISO 7783-1:1996


    Paints and varnishes - Determination of water-vapour transmission rate - Part 1: Dish method for free films

    • Historical Version