The standard "SH/T 0315-1992 (2004) Technical Conditions for Closed Flash Point Testers" specifies the technical requirements, design, manufacture, installation, commissioning and use of closed flash point detectors. The standard applies to closed flash point detectors used to determine the flash point of petroleum products and chemicals, aiming to ensure the measurement accuracy, stability and reliability of the instrument. The standard details the structure, performance, inspection methods, quality control requirements, and the installation environment and maintenance requirements of the instrument. By implementing this standard, the closed flash point tester can be guaranteed to operate efficiently, accurately and safely in actual operation, and is widely used in laboratory testing in petroleum, chemical and other industries.