0703-2020 "Standard test method for measuring apparent viscosity at high-temperature and high-shear rate by multicell capillary viscometer"

This standard specifies a method for determining the apparent viscosity of engine oils at high temperature and high shear (HTHS) using a multi-capillary tubing Viscosity meter at 150 ° C with a wall apparent shear rate of 1.4x10 ° s ^ (-1). For engine oils, the apparent viscosity is determined directly using the corrected Linear dispersion established by a Newtonian calibrated oil with an apparent viscosity of 1.5mPa · s to 5.0mPa · s at 150 ° C. Precision applies only to engine oils with an apparent viscosity of 1.45mPa · s to 5.05mPa · s at 150 ° C. Users should ensure that appropriate safety precautions are in place before using this standard.

This summary is not the original standard text and is for reference only. For accurate information, please obtain it through official channels.