IP 16 - Freeze Point of Aviation Fuels
We perform testing by IP 16 to determine the temperature below which solid hydrocarbon crystals may form in aviation turbine fuels and aviation gasoline. The freezing point of aviation fuel is the lowest temperature at which the fuel remains free of solid hydrocarbon crystals. These hydrocarbon crystals can restrict the flow of fuel through filters in an aircraft's fuel system. The temperature of the fuel in the aircraft tank normally falls during flight depending on aircraft speed, altitude, and flight duration. The freezing point of aviation fuel must always be lower than the minimum operational tank temperature.
We also perform freeze point testing by ASTM D1177, ASTM D2386, ASTM D5972, and IP 435. These different test methods use different instruments or procedures or are used for certain sample types. Click on the test method number to learn more about each test.
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IP 16 corresponds to ASTM D2386.