ISO-19403-1 Paints and varnishes - Wettability - Part 1: Terminology and general principles


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The ISO 19403 series specifies optical test methods

- for the measurement of the contact angle,

- for the determination of the free surface energy of a solid surface, including the polar and dispersive fractions,

- for the determination of the surface tension of liquids, including the polar and dispersive fractions, and

- for the checking of the measurement arrangement with reference materials.

It can be applied for the characterization of substrates, coatings and coating materials.

The applicability can be restricted for liquids with non-Newtonian rheology[1].

ISO 19403-1:2017 specifies terms and definitions and defines the general principles.

[1] This term is defined in DIN 1342-1.




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01.040.87 (Paint and colour industries (Vocabularies))

87.040 (Paints and varnishes Including coating powders, paint coatings and protective paint systems)

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Document Number

ISO 19403-1:2017

Revision Level




Publication Date

June 1, 2017

Committee Number

ISO/TC 35/SC 9