International Standard
ISO 19403-2:2024
Paints and varnishes — Wettability — Part 2: Determination of the surface free energy of solid surfaces by measuring the contact angle
Reference number
ISO 19403-2:2024
Edition 2
2024-09
© ISO 2024
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Published (Edition 2, 2024)

ISO 19403-2:2024

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Format
CHF 96
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Abstract

This document specifies a test method to measure the contact angle for the determination of the surface free energy of a solid surface. The method can be applied for the characterization of substrates and coatings.

NOTE 1    For the determination of the surface free energy of polymers and coatings, it is preferred to use either the method according to Owens, Wendt, Rabel and Kaelble or the method according to Wu.

NOTE 2    The morphological and chemical homogeneity have an influence on the measuring results. The procedures indicated in this document are based on the state-of-the-art employing the drop projection method in penumbral shadow. Other methods are not excluded.

Measuring the contact angle on powders is not part of this document.

General information

  • Status
     : Published
    Publication date
     : 2024-09
    Stage
    : International Standard published [60.60]
  • Edition
     : 2
    Number of pages
     : 14
  • Technical Committee :
    ISO/TC 35/SC 9
    ICS :
    87.040 
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