Petroleum products and hydrocarbon solvents; determination of aniline point and mixed aniline point

This standard outlines a specific analytical procedure designed to determine the aniline point and mixed aniline point for petroleum products and hydrocarbon solvents. The methodology focuses on establishing the temperature at which equal volumes of the test substance and aniline become completely miscible, or form a single phase, under controlled conditions. By measuring this temperature, the test provides insight into the aromatic content and polarity of the liquid samples involved. The procedure details the necessary apparatus, the preparation of the aniline mixture, and the precise steps for heating and observing the phase transition. Results obtained through this method are essential for characterizing fuel properties and ensuring compatibility with specific engine components or industrial applications. The protocol includes provisions for correcting measurements to a standard reference temperature to ensure data consistency across different testing environments. This approach allows for the comparison of various hydrocarbon streams and aids in quality control processes within the energy and chemical sectors.