ASTM D5972 Freezing Point of Aviation Fuels (Automatic Phase Transition Method)
8. Preparation of Apparatus
8.1 Install the analyzer for operation in accordance with the manufacturer's instructions.
8.2 Turn on the liquid cooling medium and ensure its temperature is appropriate for the specimen being tested in accordance with the manufacturer's instructions (see Note 1).
8.3 Turn on the purge gas and ensure that it is regulated to the appropriate pressure in accordance with the manufacturer's instructions.
8.4 Turn on the main power switch of the analyzer.
9. Calibration and Standardization
9.1 Ensure that all of the manufacturer's instructions for calibrating, checking, and operating the apparatus are followed.
9.2 An aviation turbine fuel sample which has been extensively tested in a Test Method D2386 interlaboratory study can be used to verify performance of the apparatus within the precision of the test method.
9.3 Reagent grade n-octane with a known freezing point value can be used to verify the calibration of the specimen temperature measuring device within the precision of this test method. The literature value for the freezing point of pure n-octane is -56.8°C.
