ASTM D6443 Determination of Calcium. Chlorine, Copper, Magnesium, Phosphorus, Sulfur, and Zinc in Unused Lubricating Oils and Additives by Wavelength Dispersive X-Ray Fluorescence Spectrometry (Mathematical Correction Procedure)
Lubricating oils may contain a variety of additives to protect system components and extend lubricant life. Appropriate additive levels are essential for proper functioning of the lubricant. This test, intended for new, unused lubricants and additive packages for lubricants, rapidly and efficiently determines the level of seven elements commonly found in lubricant additives – traditional analysis methods required time-consuming digestions, chemical processing and gravimetric or titration methods.
The sample is prepared and analyzed by x-ray fluorescence. Reported is the mass percent of listed elements in the lubricating fluid.