ASTM-D7394 2023

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D7394-18(2023) Standard Practice for Rheological Characterization of Architectural Coatings using Three Rotational Bench Viscometers

Published By	Publication Date	Number of Pages
ASTM	2023

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Category: ASTM

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Description

ASTM D7394-18-Reapproved2023

Active Standard: Standard Practice for Rheological Characterization of Architectural Coatings using Three Rotational Bench Viscometers

ASTM D7394

Scope

1.1 This practice describes a popular industry protocol for the rheological characterization of waterborne architectural coatings using three commonly used rotational bench viscometers. Each viscometer operates in a different shear rate regime for determination of coating viscosity at low shear rate, mid shear rate, and at high shear rate respectively as defined herein. General guidelines are provided for predicting some coating performance properties from the viscosity measurements made. With appropriate correlations and subsequent modification of the performance guidelines, this practice has potential for characterization of other types of aqueous and non-aqueous coatings.

1.2 The values in common viscosity units (Krebs Units, KU and Poise, P) are to be regarded as standard.

1.3 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.

1.4 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

cone/plate-type viscometer; high-shear viscosity; Krebs unit viscometer; low-shear viscosity; mid-shear viscosity; paints; rheology; viscosity;

ICS Code

ICS Number Code 17.060 (Measurement of volume, mass, density, viscosity)

DOI: 10.1520/D7394-18R23

Additional information

Standard Title	D7394-18(2023) Standard Practice for Rheological Characterization of Architectural Coatings using Three Rotational Bench Viscometers
Published Code	ASTM
Publication Date	2023