IP 436: Determination of aromatic hydrocarbon types in aviation fuels and petroleum distillates - High performance liquid chromatography method with refractive index detection

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  • Method adopted/last revised: 2017
  • Method reapproved: 2019
  • REF/ISBN: IP436-2938621
  • Status: Current
  • First printed in STM books: April 2018


This standard describes a method for the determination of mono-aromatic and di-aromatic hydrocarbon contents in aviation kerosenes and petroleum distillates boiling in the range 50 °C to 300 °C.

This method is applicable to distillates containing 0 % (m/m) - 75 % (m/m) mono-aromatic hydrocarbons and 0 % (m/m) - 25 % (m/m) di-aromatic hydrocarbons (see note 2).

NOTE 1 Products with a final boiling point greater than 300 °C can contain tri-aromatic and higher polycyclic aromatic compounds and should be analyzed by IP 391/95.

NOTE 2 The precision of the method has been established only for kerosene boiling range distillates containing 10 % (m/m) to 25 % (m/m) mono-aromatic hydrocarbons and 0 % (m/m) to 7 % (m/m) di-aromatic hydrocarbons.

NOTE 3 Compounds containing sulfur, nitrogen and oxygen can interfere. Conjugated di- and poly-alkenes, if present, can interfere. Mono-alkenes do not interfere.

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