Core contents of the standard: First, construction of safety parameter system, constructing a complete elevator safety parameter system, covering mechanical safety, electrical safety, functional safety, environmental safety and other aspects, and specifying a total of 128 key safety parameters and their limits; Second, unified parameter calculation methods, unifying the calculation methods and formulas of various safety parameters, including load calculation, strength calculation, stiffness calculation, braking distance calculation, buffer stroke calculation, etc., ensuring that the calculation results of different enterprises and different regions are consistent and comparable; Third, standardized test methods, clarifying the test methods, test equipment requirements and test environmental conditions of various safety parameters, stipulating the processing methods and judgment standards of test data, and ensuring the accuracy and reliability of test results; Fourth, differentiated requirements for different types of elevators, formulating differentiated safety parameter requirements according to the characteristics of different types of elevators such as passenger elevators, freight elevators, medical elevators, home elevators, and escalators, ensuring that the safety performance of various elevators meets the needs of their use scenarios; Fifth, in line with international standards, equivalently adopting the relevant contents of ISO 14798:2021 international standard, realizing the integration of China's elevator safety parameter standards with international standards, and promoting the international trade of China's elevator products.