Keywords:
Absorption, Ageing behaviour, Ageing (materials), Analysis, Basis, Chemical analysis and testing, Determination of content, Diesel fuels, Gasoline, Infrared radiation, Infrared spectrometry, Lubricants, Materials testing, Nitration, Oxidation, Petroleum products, Sampling methods, Secondhand, Spectrophotometry, Spectroscopy, Synthetic oil, Testing, Testing conditions, Working principles