Simultaneous monitoring of multiple lubricating oil quality indicators with Vis-NIR spectroscopy

Main Document

Vis-NIR spectroscopy was used to determine several chemical and physical parameters, including acid number (AN), kinematic viscosity at 40 °C, moisture content and color index. These are important indicators of the quality of lubricating oil. The study shows that Vis-NIRS allows a quick and simultaneous determination of these parameters.