ASTM-D5972 › Standard Test Method for Freezing Point of Aviation Fuels (Automatic Phase Transition Method)
Show Complete Document History
The following bibliographic material is provided to assist you with your purchasing decision:
Changes from the previous issue
A redline edition is available for this document, with all changes visible. Ask Document Center Inc. for more information.
1.1 This test method covers the determination of the temperature below which solid hydrocarbon crystals form in aviation turbine fuels.
1.2 This test method is designed to cover the temperature range of −80 °C to 20 °C; however, 2003 Joint ASTM/IP Interlaboratory Cooperative Test Program mentioned in has only demonstrated the test method with fuels having freezing points in the range of −42 °C to −60 °C.
1.3 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 and health practices and determine the applicability of regulatory limitations prior to use. For specific warning statements, see , , and .
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. 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 and expresses results to the nearest 0.1 °C, with improved precision over Test Method . This test method also eliminates most of the operator time and judgment required by Test Method .
5.4 When specification requires Test Method , do not substitute this test method or any other test method.
aviation turbine fuels; freezing point; Peltier; thermoelectric; wax crystals ;; ICS Number Code 49.025.99 (Other materials); 75.160.20 (Liquid fuels)
To find similar documents by ASTM Volume:
To find similar documents by classification:
To find similar documents by Federal Supply Class Code:
This document comes with our free Notification Service, good for the life of the document.
This document is available in either Paper or PDF format.
June 15, 2016