ISO 19403-7:2017 specifies a method for the dynamic measurement of the roll-off angle of a liquid drop on a solid surface. From the dynamic measurement, the advancing and receding angles of the drop rolling off can also be determined. The roll-off angle plays a role when evaluating, for example, easy-to-clean or anti-adherent surfaces.
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Sisällysluettelo
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Apparatus and materials
6 Sampling
7 Procedure
7.1 General for measuring the roll-off angle
7.2 Measurement
8 Precision
9 Test report
Annex A Notes on sampling and treatment of test specimens (informative)
Annex B Factors influencing the roll-off angle (informative)
ISO 19403-1:2017 Paints and varnishes -- Wettability -- Part 1: Terminology and general principles
ISO 4618:2014 Paints and varnishes -- Terms and definitions
ISO 19403-1:2017 Paints and varnishes -- Wettability -- Part 1: Terminology and general principles
ISO 4618:2014 Paints and varnishes -- Terms and definitions