International standard test methods used for the determination of Mg, P, S, Cl, Ca, Cu, Zn and Ba in unused lubricating oil samples by means of WDXRF include ASTM D4927 and ASTM D6443. In this study we have set up calibrations in accordance with the methods stipulated in both ASTM norms.

XRF is an excellent method for the multi-elemental analysis of new lubricating oils for the purposes of quality control, product development and product performance classification. It produces fast, cost-effective, precise and accurate data with a minimum of operator dependence. 

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