The GB/T 533 - 2008 standard is used to determine the density of vulcanized rubber or thermal plasticity rubber. The standard specifies the detailed measurement method, covering the test process, Sample Handling and other links. Through standardized operation, the rubber density value can be accurately obtained. This value is of great significance to the mass control, performance evaluation and product design of rubber materials, which is convenient for screening materials in production, controlling costs, helping to produce Rubber that meets requirements, and promoting the standardization development of the rubber industry.