ASTM D7836-13(2020) PDF

Scope: 1.1 These test methods cover three approaches for determining yield stress values of paints, inks and related liquid materials using rotational viscometers. The first method uses a rotational viscometer with coaxial cylinder, cone/plate, or plate/plate geometry. The second method uses a rheometer operating in controlled stress mode with similar geometries. The third method uses a viscometer with a vane spindle. 1.2 A non-rotational technique, the falling needle viscometer (FNV), also can be used to measure yield stress values in paints, inks and related materials. See Test Methods D5478, Test Method D, Yield Stress Determination for details. 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.

ASTM D7836-13(2020) Referenced Document

ASTM D3925 Standard Practice for Sampling Liquid Paints and Related Pigmented Coatings
ASTM D5478 Standard Test Methods for Viscosity of Materials by a Falling Needle Viscometer

2020 ASTM D7836-13(2020) Standard Test Methods for Measurement of Yield Stress of Paints, Inks and Related Liquid Materials
2013 ASTM D7836-13 Standard Test Methods for Measurement of Yield Stress of Paints, Inks and Related Liquid Materials