SH/T 0751-2005 (English Version) PDF

Scope: This standard specifies the laboratory use of high shear rate conical plug viscometer model BE/C (single speed) or BS/C (multiple speed) under the conditions of 150℃ and 1×10 and 100℃ and 1×10 Determine the viscosity of lubricating oil. Newtonian calibration oil can be used to adjust working gaps and calibrate instruments. The viscosity range of these calibration oils at 150°C is approximately 1.8mPa·s～5.9mPa·-s, and the viscosity range at 100°C is approximately 4.2mPa·s～ 18.9mPa·s. Calibration oil beyond this viscosity range cannot be used. If calibration oil beyond this viscosity range is used, the accuracy of this method is no longer applicable. This standard specifies the use of non-Newtonian check oils to verify the reliability of test conditions. The precise viscosity of each batch of check oil is established by testing on multiple instruments in different laboratories. The exact value for checking the oil viscosity can be obtained from the Chairman of the European Coordination Committee (CEC) L-36-A90 Supervision Group or the oil supplier. This standard applies to the testing of internal combustion engine oil. This standard uses mPa·s as the unit of viscosity. This standard does not include all safety matters that may be involved during use. Therefore, users should establish appropriate safety and protective measures and determine an applicable management system before using this standard.

SH/T 0751-2005 Referenced Document

ASTM D4683 Standard Test Method for Measuring Viscosity at High Shear Rate and High Temperature by Tapered Bearing Simulator
GB 1922 Petroleum solvents for paints and cleaning*， 2006-07-18 Update
SH/T 0024 Determination method of lubricating oil precipitation value

2005 SH/T 0751-2005 Standard test method for measuring viscosity at high temperature and high shear rate by tapered-plug viscometer