ASTM-D7490 2022

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D7490-13(2022) Standard Test Method for Measurement of the Surface Tension of Solid Coatings, Substrates and Pigments using Contact Angle Measurements

Published By	Publication Date	Number of Pages
ASTM	2022	4

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Category: ASTM

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Description

ASTM D7490-13-Reapproved2022

Active Standard: Standard Test Method for Measurement of the Surface Tension of Solid Coatings, Substrates and Pigments using Contact Angle Measurements

ASTM D7490

Scope

1.1 This test method describes a procedure for the measurement of contact angles of two liquids, one polar and the other nonpolar, of known surface tension on a substrate, pigment (in the form of a disk), or cured or air dried coating in order to calculate the surface properties (surface tension and its dispersion and polar components) of the solid.

1.2 The total solid surface tension range that can be determined using this method is approximately 20 to 60 dyn/cm.

1.3 The values stated in CGS units (dyn/cm) are to be regarded as standard. No other units of measurement are included in this standard.

1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

Keywords

adhesion; contact angles; dispersion and polar components of solid surface tension; solid surface tension; wetting;

ICS Code

ICS Number Code 87.040 (Paints and varnishes)

DOI: 10.1520/D7490-13R22

Additional information

Standard Title	D7490-13(2022) Standard Test Method for Measurement of the Surface Tension of Solid Coatings, Substrates and Pigments using Contact Angle Measurements
Published Code	ASTM
Publication Date	2022
Pages Count	4