Abstract: Four standard test methods for determining the boiling range distribution of petroleum fractions by gas chromatography were compared, and data correlations of these standard test methods were studied as well. The test results of these four standard methods were basically in good agreement. ASTM D2887 method is simple, fast and with good precision for analyzing petroleum fractions in the boiling range of 55.5℃—538℃. ASTM D7500 method having wide measurement range is preferred to determine petroleum fractions, such as various lubricating oils, VGO and other heavy petroleum fractions. The effect of film thickness of capillary column on the determination result was also discussed. When testing heavy oil sample containing over n-C100 hydrocarbons, capillary column with film thickness of 0.1 μm is suggested to be used for better determination results.