This document 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.Cross References:ISO 4618:2014ISO 19403-1:2017EN 14370:2004ISO 19403-6:2017ISO 3270:1984 (R08)ISO 19403-2:2017ISO 19403-3:2017Incorporates the following:Corrigendum, March 2020