ELS, provide advanced solutions for Fuel oil, Lubricants, and Petrochemicals analysis in order to satisfy customer needs or requirements (i.e. ASTM standards).
XRF and XRD are  advanced techniques used in the petrochemical, refinery chain, from the first step of exploration to crude oil production and then during the production of chemicals, oils  fuels and catalysts
Rotrode Emission Spectrometer RDE-OES technique is nowadays used in petrochemical application to test oils to determine additive  presence of  contaminant elements at trace level and metals coming from wearing and corrosion.