The JASO MJ09-0 standard specifies the corrosion test method of automotive materials, which aims to evaluate the corrosion resistance performance of materials in a simulated environment. The standard applies to corrosion testing of various automotive materials, including metallic and Non-metallic materials. Through the testing of this standard, the durability and safety of automotive materials in actual use can be ensured. It is recommended to check whether there is an updated version when using it to obtain the latest test requirements.