"ASTM D56-2016A Standard Test Method for the Determination of Flash Point by Tagger Closed Flash Point Tester" specifies in detail the experimental procedures and technical requirements for the determination of flash point by Tagger Closed Flash Point Tester. This method is suitable for the determination of volatile liquids with flash point range between 0 ° C and 110 ° C. It is widely used in chemical, petroleum and related industries to evaluate the flammability and safety of liquid samples. The standard content includes the technical specifications of the instrument and equipment, sample prepative, test procedure, result recording and report format requirements. Through this method, the basis for safety assessment can be provided for the storage, transportation and use of the product, while meeting the needs of industry regulations and safety standards.