The JASO M609-1991 standard introduces a composite Cyclic Corrosion test method for automotive materials. The method evaluates the corrosion that a material may encounter in actual use by simulating a cycle of multiple environmental conditions. The test includes factors such as Humidity, temperature changes as well as salt fog to verify the corrosion resistance performance of the material. The standard applies to corrosion testing of various automotive parts to ensure that it retains Reliability during long-term use. It is recommended to confirm in the application whether there is an updated version to obtain the latest test requirements.
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