Quantitative Spectrophotometric Analysis (QSA)

An analysis technique for purposely isolating and measuring the specific lubrication degradation by-products responsible for varnish formations. This is not a measure of varnish already formed; it is a determination of the lubricants propensity to form varnish and can be applied to preventing varnish formations and build-up within the system. Results are represented as the Varnish Potential Rating (VPR) with a scale of 1 to 100 severity rating.