JET A1 AVIATION FUEL

JET A-1 is an aviation fuel formerly known as “kerosene” which is suitable for most jet aircraft. It meets stringent international requirements, particularly those of the latest versions of the AFQRJOS, the British DEF STAN 91-91 standard, the ASTM D1655 standard, and the NATO F-35 specification. It has a minimum flashpoint of 38°C and a maximum freezing point of -47°C.

JET A-1 is the principal fuel used for jet turbine engines. It is also used in general aviation for compatible diesel engine planes.

Jet fuel or aviation turbine fuel (ATF) is a type of aviation fuel designed for use in aircraft powered by gas-turbine engines. It is colourless to straw-colored in appearance. The most commonly used fuels for commercial aviation are Jet A and Jet A-1, which are produced to a standardized international specification. The only other jet fuel commonly used in civilian turbine-engine powered aviation is Jet B, which is used for its enhanced cold-weather performance. 

Jet fuel is a mixture of a large number of different hydrocarbons. The range of their sizes (molecular weights or carbon numbers) is restricted by the requirements for the product, for example, the freezing point or smoke point. Kerosene-type jet fuel (including Jet A and Jet A-1) has a carbon number distribution between about 8 and 16 (carbon atoms per molecule); wide-cut or naphtha-type jet fuel (including Jet B), between about 5 and 15.

EN590 DIESEL

EN590 was introduced to coincide with the development of new emissions standards across the European Union. The overall goal has been to reduce the sulphur content of diesel fuel. Sulphur had been used as a lubricant in the fuel. Its role is taken by special additives in Ultra Low Sulphur Diesel (ULSD). 

Since 2007, diesel that conforms to EN590 has been referred to as  ULSD in the European Union. The phrase “Ultra Low Sulphur Diesel” is governed by different standards in other parts of the world.

EN590 describes the physical properties that all automotive diesel fuel must meet if it is to be sold in the European Union, Croatia, Iceland, Norway and Switzerland.