Standard Test Method for Freezing Point of Aviation Fuels (Automatic Phase Transition 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. These 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 have been found to be equivalent to Test Method D2386 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 When specification requires Test Method D2386, do not substitute this test method or any other test method.

Subcomité:

D02.07

Referida por:

D3699-25, D1655-24B, D6615-22, D4054-25, D1655-24B, D7223-21, D1655-24B, D8147-24, D7566-24D, D7960-21, D7826-25A

Volúmen:

05.02

Número ICS:

49.025.99 (Other materials), 75.160.20 (Liquid fuels)

Palabras clave:

aviation turbine fuels; freezing point; Peltier; thermoelectric; wax crystals ;