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ISO/CD 22755

Paints and varnishes — Contact angle of powders. ISO/CD 22755

General information

30.60   Close of voting/ comment period   Jun 24, 2026

ISO

ISO/TC 35/SC 9 General test methods for paints and varnishes

International Standard

Scope

This document specifies the test methods for measuring the contact angle of powders. The sessile drop method is used for contact angles larger or equal to 90°. The Wilhelmy plate and liquid penetration (Washburn) methods are used for contact angles smaller than 90°. Time dependent effects are not considered in this document. The powders should not be soluble in the test liquid.

Life cycle

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ISO/CD 22755
30.60 Close of voting/ comment period
Jun 24, 2026




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