IP 599: Determination of Fatty Acid Methyl Esters (FAME) in aviation turbine fuel - Gas Chromatography using heart-cut and refocusing

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  • Method adopted/last revised:
  • Method reapproved: 2022
  • Status: Current
  • First printed in STM books: 2014

This standard specifies a method for the identification and quantification of selected fatty acid methyl ester (FAME) species, see Table 1, in
aviation turbine fuel (AVTUR). The quantification range of the method runs from 3 mg/kg up to 116 mg/kg total FAME content.

FAME presence caused by Coconut/Palm Kernel oil based biofuels can be indicated as described in Annex C.

NOTE 1 AVTUR (and AVTUR contaminated with diesel/ biodiesel) can contain some high molecular weight components which may interfere with the FAME determination at very low levels.

NOTE 2 The FAME species listed in Table 1 have been specifically chosen as they typically make up greater than 95 % of the composition of the major biofuel vegetable oil feeds currently used in biodiesel blends with conventional mineral diesel.

NOTE 3 Using lower injection volumes or higher split ratios, the maximum limit on total FAME content can potentially be increased towards higher values.

NOTE 4 Some of the C18:1 components listed in Table 1 may not be fully separated from each other.

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