BS EN ISO 19403-7:2020
$102.76
Paints and varnishes. Wettability – Measurement of the contact angle on a tilt stage (roll-off angle)
| Published By | Publication Date | Number of Pages |
| BSI | 2020 | 22 |
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.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 2 | National foreword |
| 4 | European foreword |
| 6 | Foreword |
| 7 | Introduction |
| 9 | 1 Scope 2 Normative references 3 Terms and definitions |
| 10 | 4 Principle 5 Apparatus and materials 5.1 Contact angle measuring system. |
| 11 | 5.2 Dosing unit. 5.3 Test liquids. |
| 12 | 6 Sampling 7 Procedure 7.1 General for measuring the roll-off angle 7.1.1 Setting up the contact angle measuring system |
| 13 | 7.1.2 Test conditions 7.1.3 Conditioning of the test panels 7.2 Measurement 7.2.1 General 7.2.2 Application of the drop |
| 14 | 7.2.3 Determination of the roll-off angle |
| 16 | 8 Precision 9 Test report |
| 18 | Annex A (informative) Notes on sampling and treatment of test specimens |
| 19 | Annex B (informative) Factors influencing the roll-off angle |
| 21 | Bibliography |
