Core contents of the standard: First, classification and model, clarifying the classification method and model coding rules for elevator counterweight systems, which are divided into integral counterweights and assembled counterweights according to structure; Second, comprehensive technical requirements, stipulating the technical requirements for elevator counterweight systems such as structure, size, material, mechanical properties, safety properties, and weather resistance; Third, unified test methods, unifying the test methods and test equipment requirements for various technical requirements of elevator counterweight systems; Fourth, standardized inspection rules, clarifying the items, methods and judgment rules for factory inspection, type inspection and sampling inspection of elevator counterweight systems; Fifth, installation and maintenance requirements, stipulating the installation, commissioning, acceptance requirements and daily maintenance requirements for elevator counterweight systems.