A Miniflash FLPH analyzer from Grabner Instruments (Austria), with an accuracy of ± 1.9 K, was used to measure the flash point (FP) in accordance with the ASTM D6450 standard test method. Every day, the atmospheric pressure was checked and used to correct the measured FP, as the method requires this correction when the pressure differs from 101.3 kPa. Before measuring the target systems, the FP of dodecane was measured to ensure that the equipment was properly calibrated. After these precautions, all FP analyses were conducted in triplicate, with the average FP and average absolute deviation (AAD) calculated for each set of measurements (Table ).