1.1 This test method describes the determination of the shear thinning index of a shear-rate dependent (nonNewtonian) fluid using a rotational viscometer. A value of the shear thinning index of unity indicates that the material is Newtonian in behavior. A value greater than unity indicates shear thinning behavior.
1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this 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.
ASTM E3070-22e1 Referenced Document
ASTM E1142 Standard Terminology Relating to Thermophysical Properties
ASTM E2975 Standard Test Method for Calibration or Calibration Verification of Concentric Cylinder Rotational Viscometers*, 2023-01-01 Update
ASTM E473 Standard Terminology Relating to Thermal Analysis
ASTM E3070-22e1 history
2022ASTM E3070-22e1 Standard Test Method for Shear Thinning Index of Non-Newtonian Liquids Using a Rotational Viscometer
2022ASTM E3070-22 Standard Test Method for Shear Thinning Index of Non-Newtonian Liquids Using a Rotational Viscometer
2018ASTM E3070-18 Standard Test Method for Shear Thinning Index of Non-Newtonian Liquids Using a Rotational Viscometer
2016ASTM E3070-16 Standard Test Method for Shear Thinning Index on Non-Newtonian Liquids Using a Concentric Cylinder Rotational Viscometer