IP 451: Determination of aromatic carbon content of lubricant mineral base oils - Infrared spectroscopy method

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  • Method adopted/last revised: 2000
  • Method reapproved: 2012
  • REF/ISBN: IP451-2934869
  • Status: Current
  • First printed in STM books: January 2000


This standard specifies a method for the determination of the aromatic carbon content of mineral lubricant base oils in the range from 0,45 % mole to 15 % mole. The method does not cover the determination of concentrations of aromatic compounds in mineral base oils.

NOTE 1 This method can also be applied to finished lubricants provided these products do not contain additives with infrared absorptions near 1 610 cm-1 and 815 cm-1.

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