FAME Testing in Jet Fuel
Jet fuel contamination and testing for Fatty Acid Methyl Ester (FAME - Biodiesel) in jet fuels.
Major Engine and Airframe manufacturers agree that jet fuel must contain less that 5ppm of (FAME). Concerns around FAME contamination have been documented in Bulletin No 26 from the Joint Inspection Group (JIG). Intertek can determine the presence of FAME (Fatty Acid Methyl Ester) contamination in Jet Fuel by GC/MS.
Intertek laboratories around the globe are able to determine FAME contamination to less than 5 ppm levels. The requirement was incorporated in DEF STAN 91-91 and is expected to be added into the ASTM D1655 Jet Fuel Specification.
Jet fuel is often transported in common-carrier and multi-product pipeline and distribution systems. Shipping Biodiesel in multi-product pipelines may create a risk of cross-contamination of Jet Fuel with residual Biodiesel components. The bio-component in biodiesel is a surface-active material, meaning FAME may adhere to pipe and tank walls as the biodiesel passes through, and then release from the walls into the following product, which may be jet fuel.
Small amounts of diesel containing FAME may remain within distribution manifolds, tanks, vehicles, and pipes, increasing the risk of FAME traces getting into jet fuel transported through the same components. At high enough concentrations, FAME can impact the thermal stability of jet fuel, leading to coke deposits in the fuel system. FAME contamination can also impact the freezing point of jet fuel, resulting in fuel gelling. Such conditions can result in engine operability problems and possible engine flameout.
Jet fuel and biofuel testing:
Contact us to see how Intertek can help your organization with FAME Testing in Jet Fuel.