Standard Test Method for Freezing Point of Aviation Fuels (Micro CFP Method)

Importancia y uso:

5.1 The freezing point of an aviation fuel is the lowest temperature at which the fuel remains free of solid hydrocarbon crystals. Hydrocarbon crystals can restrict the flow of fuel through the fuel system of the aircraft. The temperature of the fuel in the aircraft tank normally decreases during flight depending on aircraft speed, altitude, and flight duration. The freezing point of the fuel must always be lower than the minimum operational fuel temperature.

5.2 Petroleum blending operations require precise measurement of the freezing point.

5.3 This test method produces results which can be used as a predicted Test Method D2386 result without any bias correction and expresses results to the nearest 0.1 °C, with improved precision over Test Method D2386. This test method also eliminates most of the operator time and judgment required by Test Method D2386.

5.4 This test method potentially covers the range of temperatures from –90 °C to –35 °C with temperature resolution of 0.1 °C.

Subcomité:

D02.07

Volúmen:

05.05

Palabras clave:

aviation turbine fuels; crystal detection; crystallization point; freezing point; jet fuel; liquid fuel products; low temperature tests; luminous flux; physical tests; SATF;