HEAT OF COMBUSTION SPECIFIC HEAT OF AIRCRAFT TURBINE FUELS BY THERMAL ANALYSIS: ASTM D4816
EXPLANATION
This test method covers the determination of the specific heat of fuels by differential scanning calorimetry (DSC). These values are used in engineering calculations that relate to the manner in which a given system may react to thermal stress.
TEST SUMMARY
An empty, unsealed specimen pan is first heated over the desired temperature range while monitoring the heat supplied as a function of temperature, in a DSC instrument. Next, the program is repeated for the hermetically sealed pan containing a weighed test specimen of fuel. The specific heat is calculated from the difference between these two sets of measurements. A pure substance with known specific heat value is used as a calibrant.
TEST PRECISION
Since no round robins have been carried out, no statement of precision or bias can be made.
