The ASTM D5185 standard, developed by the American Society for Testing and Materials (ASTM), presents a method for determining additive elements, wear metals, and contaminants in used and unused lubricating oils and base oils using inductively coupled plasma atomic emission spectrometry (ICP-AES). The full name of this standard is: ASTM D5185-18 Inductively coupled plasma atomic emission spectrometry (ICP-AES) for the highly protected determination of used and unused lubricating oils and base oils.
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This test method involves the determination of selected elements listed in a table within the standard in re-refined and virgin base oils. For the analysis of any element using wavelengths below 190 nm, a vacuum or inert gas optical path is required. Sodium and potassium determination is not possible in some instruments with a limited spectral range.
This test method uses oil-soluble metals for calibration and does not claim to quantitatively identify insoluble particles. Analytical results are dependent on particle size and poor results are obtained for particles larger than a few micrometers.
In the test, analysis, measurement and evaluation studies carried out in our organization, national and international standards and applicable legal regulations are complied with and reliable and impartial results are obtained. These studies are based on the latest technological equipment, trained and experienced staff and modern methods. Element determination (ASTM D 5185) services are among the numerous tests performed in this context.
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