GB/T 7755.1-2018 in English

This standard provides a method for determining the permeability of sulfurized rubber or thermoplastic rubber. It specifies the procedure based on the pressure difference method, which involves measuring the flow of gas through the material under controlled conditions. The method outlines the equipment required, the preparation of test specimens, and the steps for conducting the test. It also includes details on the calculation of permeability values and the presentation of results. The standard ensures consistency in testing procedures and facilitates the comparison of permeability data across different materials and laboratories. It is applicable to a wide range of rubber products and is used to evaluate their performance under various environmental conditions.