IS 1448 : Part 87 : 2025 Petroleum and its Products - Methods of Test - Part 87 Autoignition Temperature of Liquid Petroleum Products
1 SCOPE
1.1 This standard (Part 87) prescribes a method for the determination of the autoignition temperature of a liquid or semi-liquid petroleum product in air at atmospheric pressure using hypodermic syringe injection into a flask maintained at the test temperature.
1.2 This standard is not designed for evaluating materials which are capable of exothermic decomposition. For such materials, ignition is dependent upon the thermal and kinetic properties of the decomposition, the mass of the sample, and the heat transfer characteristics of the system.
1.3 This standard is not designed for evaluating for solid chemicals which melt and vaporize or which readily sublime at the test temperature.
1.4 This standard is not designed to measure the autoignition temperature of samples which are solids or liquids at the test temperature. Such materials will thermally degrade in the flask and the accumulated degradation products may ignite.
1.5 This standard is not designed to measure the autoignition temperature of chemicals that are gaseous at atmospheric temperature and pressure.