The IP 170-1999 standard specifies a test method for the determination of the flash point of petroleum products and Miscellaneous liquids using the Abel closed cup method. It is suitable for the determination of liquids with a flash point in the range of -30 ° C to 70 ° C. This method determines the minimum temperature, or flash point, at which a sample vapor is mixed with air to produce an instantaneous flash by heating the sample and testing it with a flame at specific temperature intervals. It is of great significance for evaluating the safety and storage conditions of petroleum products.