BS EN ISO 19403-4:2020
$102.76
Paints and varnishes. Wettability – Determination of the polar and dispersive fractions of the surface tension of liquids from an interfacial tension
| Published By | Publication Date | Number of Pages |
| BSI | 2020 | 18 |
This document specifies a test method to determine the polar and dispersive fraction of the surface tension of liquids with optical methods. The method can be applied for the characterization of liquid coating materials, especially when drying effects occur during measurement. The applicability can be restricted for liquids with non-Newtonian rheology1).
This document assumes that the information of surface tension of the liquid to be tested, as well as at least one suitable reference liquid, is known.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 2 | undefined |
| 5 | European foreword Endorsement notice |
| 8 | Foreword |
| 9 | 1 Scope 2 Normative references 3 Terms and definitions 4 Principle |
| 10 | 5 Apparatus and materials |
| 12 | 6 Sampling 7 Procedure 7.1 General 7.1.1 Setting up the drop contour analysis device 7.1.2 Test conditions 7.1.3 Cleaning and conditioning of the reference liquid |
| 13 | 7.2 Determination of the interfacial tension of the liquid 7.2.1 Preparations 7.2.2 Procedure |
| 14 | 7.3 Determination of the surface tension of liquids 8 Evaluation 8.1 General 8.2 Calculation of the dispersive fraction of the surface tension in accordance with Owens-Wendt-Rabel-Kaelble 8.3 Calculation of the dispersive fraction of the surface tension in accordance with Wu |
| 15 | 8.4 Calculation of the polar fraction of the surface tension of the liquid 9 Precision 10 Test report |
| 16 | Bibliography |
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BS EN ISO 19403-4:2020
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