This instrument conforms to GB/T262, ASTM D611 Standard Test Methods for Aniline Point and Mixed Aniline Point of Petroleum Products and Hydrocarbon Solvents. It is mainly used to determine the aniline point of petroleum products and hydrocarbon solvents, also can be used for testing the mixed aniline point of petroleum products and hydrocarbon solvents having aniline points below the temperature at which aniline will crystallize from the aniline-sample mixture.