Core contents of the standard: First, classification and model, clarifying the classification method and model coding rules for elevator counterweight blocks and balance weights, which are divided into cast iron counterweight blocks, concrete counterweight blocks and composite counterweight blocks according to material; Second, comprehensive technical requirements, stipulating the technical requirements for elevator counterweight blocks and balance weights such as material, size, weight deviation, surface quality, mechanical properties, and weather resistance; Third, unified test methods, unifying the test methods and test equipment requirements for various technical requirements of elevator counterweight blocks and balance weights; Fourth, standardized inspection rules, clarifying the items, methods and judgment rules for factory inspection, type inspection and sampling inspection of elevator counterweight blocks and balance weights; Fifth, marking, packaging, transportation and storage, stipulating the marking content, packaging requirements, transportation conditions and storage requirements for elevator counterweight blocks and balance weights.