What is a spectrometric oil analysis program?

What is a spectrometric oil analysis program?

• A. A program in which a sample of oil is taken from the engine at regular intervals and sent to a laboratory, where it is burned in an electric arc. The resulting light is analyzed for the wavelengths of the elements that are present in the oil sample.
• B. A program that analyzes oil using infrared spectroscopy to determine contaminant levels.
• C. A program that uses gas chromatography to quantify hydrocarbon content.
• D. A program that measures oil viscosity changes over time.

Answer: (A)

A spectrometric oil analysis program uses atomic emission (spectrometric) analysis to identify metals dissolved in oil, which indicate engine wear. In practice, an oil sample is taken at regular intervals and sent to a lab. There, the sample is subjected to a spark or electric arc to excite the atoms; the light emitted at characteristic wavelengths is measured to determine which elements are present and in what amounts. By tracking the levels of metals like iron, chromium, copper, nickel, aluminum, and others over time, technicians can detect abnormal wear early and decide on maintenance actions before a failure occurs. The other methods mentioned (IR for contaminants, gas chromatography for hydrocarbons, viscosity tracking) do not provide direct elemental wear data, which is why the described spark-emission approach is the correct description.

A spectrometric oil analysis program uses atomic emission (spectrometric) analysis to identify metals dissolved in oil, which indicate engine wear. In practice, an oil sample is taken at regular intervals and sent to a lab. There, the sample is subjected to a spark or electric arc to excite the atoms; the light emitted at characteristic wavelengths is measured to determine which elements are present and in what amounts. By tracking the levels of metals like iron, chromium, copper, nickel, aluminum, and others over time, technicians can detect abnormal wear early and decide on maintenance actions before a failure occurs. The other methods mentioned (IR for contaminants, gas chromatography for hydrocarbons, viscosity tracking) do not provide direct elemental wear data, which is why the described spark-emission approach is the correct description.