DEF STAN 91-091 Turbine Fuel - Kerosene Type Standard Test Method

EUROLAB, with its state-of-the-art accredited laboratories and expert team, provides precise and fast testing services within the scope of DEF STAN 91-091 test. This defense standard specifies requirements for a graded kerosene type aviation turbine fuel intended for use in aircraft gas turbine engines. Fuel supplied to this standard will have satisfactory performance and characteristics when used in suitable aircraft or engines operated by the Crown or for which the CAA is the certification body.

Jet fuel is a complex mixture of hydrocarbons that varies depending on the raw source and manufacturing process. As a result, it is impossible to define the exact composition of jet fuel. Therefore, this Standard has evolved primarily as a performance Standard rather than a composition Standard. It is recognized that this is largely based on accumulated experience.

Aviation fuel quality assurance is based on two key concepts: batches and traceability. A batch of fuel is defined as a different amount of jet fuel that can be characterized by a series of test results. It is important that refiners ensure that the batches are homogeneous so that the test results are representative of the product supplied.

Homogeneous is defined as a constant density of more than 3,0 kg/m³ throughout the bulk. Particular care must be taken to ensure homogeneity when mixing semi-synthetic jet fuel, especially where component densities differ significantly.

In a refinery, traces of processing materials may be transported into aviation fuels, and some have been known to cause operational problems in aircraft fuel systems. In distribution, bulk jet fuel is typically processed in non-specific systems, such as multi-product pipelines and marine vessels, where contact with incidental materials is inevitable. Appropriate change measures management will be used at manufacturing sites, distribution and storage facilities to maintain product integrity.

EUROLAB assists manufacturers with DEF STAN 91-091 test compliance. Our test experts, with their professional working mission and principles, provide you, our manufacturers and suppliers, the best service and controlled testing process in our laboratories. Thanks to these services, businesses receive more effective, high-performance and quality testing services and provide safe, fast and uninterrupted service to their customers.