GB/T 7759.2 - 2014 specifies the determination method of compression deformation of vulcanized rubber or thermal plasticity rubber at low temperature. It is very strict on the setting of low temperature environment, specifying the specific Temperature range and fluctuation limit. Specify sample preparation, from size to shape, there are detailed requirements to ensure its representativeness. Detail the accuracy indicators of low-temperature chamber, compression device and other equipment. In the operation process, clearly define key parameters such as loading force, compression time and recovery time. Following this standard, the deformation and recovery state of rubber after low temperature compression can be accurately determined, providing an important mass evaluation basis for the application of Rubber in cold environment, helping enterprises to optimize product design and material selection