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Petroleum products. Gum content of fuels. Jet evaporation method
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.
CAUTION This method is not intended for the testing of gasoline components, particularly those with a high percentage of low-boiling unsaturated compounds, as they can cause explosions during evaporation.
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