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naSRPS EN ISO 19403-2:2023

Paints and varnishes - Wettability - Part 2: Determination of the surface free energy of solid surfaces by measuring the contact angle (ISO/DIS 19403-2:2023)

General information

45.99     Apr 9, 2024

50.20    Jul 16, 2024



European Norm




ISO 19403-2:2017 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, either the method in accordance with Owens, Wendt, Rabel and Kaelble or the method in accordance with Wu is used preferably.
NOTE 2 The morphological and chemical homogeneity have an influence on the measuring results.
NOTE 3 The procedures indicated in ISO 19403-2:2017 are based on the state-of-the-art employing the drop projection method in penumbral shadow. Other methods are not excluded.
NOTE 4 Measuring the contact angle on powders is not part of ISO 19403-2:2017. For further information, see the bibliography.

Life cycle


SRPS EN ISO 19403-2:2020


naSRPS EN ISO 19403-2:2023
45.99 Dispatch of FV draft to CCMC
Apr 9, 2024

Related project

Adopted from prEN ISO 19403-2 IDENTICAL

Adopted from ISO/FDIS 19403-2 IDENTICAL