"ISO/TR 11018-1997 General Guide for Essential Oil Flash Point Determination" provides the basic methods and technical requirements for essential oil flash point determination. Flash point is a key indicator for evaluating the flammability of liquids and is of great significance for the safe storage and transportation of volatile chemicals such as essential oils. The guide details the common equipment, steps and precautions for the determination of flash point. It is designed to help laboratories and related industries to correctly and safely conduct essential oil flash point testing. By following this standard, the accuracy and conformity of the test can be ensured, and the risk of fire caused by improper handling of flash point can be effectively avoided.