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ASTM D8615-26
Standard Test Method for Freezing Point of Aviation Fuels (Automatic Coaxial Optical Fibers Method)
Standard Test Method for Freezing Point of Aviation Fuels (Automatic Coaxial Optical Fibers Method)
D8615-26
ASTM|D8615-26|en-US
Standard Test Method for Freezing Point of Aviation Fuels (Automatic Coaxial Optical Fibers Method)
Standard
D8615 Standard Test Method for Freezing Point of Aviation Fuels (Automatic Coaxial Optical Fibers Method)>
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BOS Vol. 05.05 Committee D02
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ASTM International
Significance and Use
5.1 The freezing point of an aviation fuel is the lowest temperature at which the fuel remains free of solid hydrocarbon crystals that can restrict the flow of fuel through filters if present in 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 tank temperature.
5.2 Petroleum blending operations require precise measurement of the freezing point.
5.3 This test method expresses results to the nearest 0.1 °C, and it eliminates most of the operator time and judgment required by manual Test Method D2386.
5.4 When a specification requires Test Method D2386, do not substitute this test method or any other test method.
Scope
1.1 This test method covers the determination of the temperature below which solid hydrocarbon crystals may form in aviation turbine fuels.
1.2 The reporting range of freezing point test results considered valid for the applicability of precisions (r and R) and for the purpose of the test result reporting in accordance with Practice D6300, is –71.2 °C to –36.5 °C. See 12.1.3 for the ILS summary and how the reporting range is calculated from the lowest and highest achieved ILS sample averages.
Note 1: The measuring range of the apparatus is from –80 °C to 20 °C; however, the precision has not been determined using results outside the reporting range in 1.2.
1.3 Units—The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.