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IP 131: Petroleum products - Gum content of light and middle distillate fuels - Jet evaporation method

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  • Method adopted/last revised:
  • Method reapproved: 2021
  • REF/ISBN:
  • Status: Current
  • First printed in STM books:

This document specifies a method for determining the existent gum content of aviation fuels and the gum content of motor gasoline or other
volatile distillates. It includes the determination of products containing ethanol (up to a volume fraction of 85 %) and ether-type oxygenates and
deposit control additives.

For determination of gum content in automotive ethanol (E85) fuel, no precision data is available (see 14.1).

For non-aviation fuels, a procedure for the determination of the heptane-insoluble portion of the residue is also described.

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