Aviation turbine fuel is specified around the world largely by two specifications DefStan 91-091 and ASTM D1655 and is a complex mixture predominantly composed of hydrocarbons and varies depending on crude source and manufacturing process making it impossible to define the exact composition of Jet A/A-1. ASTM D1655 has therefore evolved primarily as a performance specification rather than a compositional specification.

One of the newest developments in these methods was the addition of a test for Fatty Acid Methyl Esters (FAME) allowed at wingtip for the fuel to be used. View our FIJI JF – FAME in Jet Instrument, SA5000-2 page for more information.