Autoignition temperature (AIT) is indispensable information for safe handling and operation of flammable material. Typical applications of AIT in industry include classification of explosion proof electric equipment and assessment of risk for potential leakage of hazardous chemical Despite of its significance, in different data compilations, the discrepancies in reported AIT are appreciable, and an emergent need exists for investigating AIT of chemical substances through experimental approach before this information may be reliably attempted for industrial application. In this study the AITs of seven halogenated compounds were measured in compliance with the ASTM E659 test method. The AIT and ignition delay time determined from experiment for isopropyl chloride, butyl chloride, isobutyl chloride, pentyl chloride, pentyl bromide, chlorocyclohexane, and benzoyl chloride were (493.1 +/- 9.9) degrees C/259.5 s, (244.0 +/- 4.9) degrees C/35.9 s, (438.8 +/- 8.8) degrees C/7.2 s, (252.0 +/- 5.1) degrees C/58.0 s, (245.0 +/- 4.9) degrees C/103.8 s, (255.8 +/- 5.2) degrees C/144.8 s, and (530.9 +/- 10.7) degrees C/13.5 s, respectively. The test results also show that the AITs of isopropyl chloride, butyl chloride, and benzoyl chloride reported in DIPPR 2012 deviate from the new measurements by 100, 215, and 445 degrees C, respectively. The AITs reported in The Chemical Database are closer to the new measurements than those reported in other data compilations; however, the deviations are still of a significant level, 97 and 69 degrees C for isopropyl chloride and benzoyl chloride, respectively.