M00016870
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ISO DIS 19403-2 2015 Edition, November 12, 2015 PAINTS AND VARNISHES - WETTABILITY - PART 2: DETERMINATION OF THE SURFACE FREE ENERGY OF SOLID SURFACES BY MEASURING THE CONTACT ANGLE
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Availability date: 07/14/2021
Description / Abstract:
This standard 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 coatings1).
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 this part of ISO 19403 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
this standard. For further information see bibliography.