Oils and lubricants have to fulfil different tasks in engineering. Beside lubrication they are needed to cool pistons in car engines and while metal milling, to protect against corrosion and to bind particles: Not an easy task at extreme temperatures and with high reliability!
Additives are needed at an accurate concentration level. Elements with serious effects on product properties need to be excluded.
Precise and reliable analysis of the element composition at the minor and trace level is the key for high product quality. X-ray fluorescence (XRF) is the most important analytical method for the analysis of additives and impurities, no matter if oils, greases or waxes need to be qualified.