Definition: The grease copper corrosion test refers to the ability of grease to protect metal copper sheets from corrosion, which has become one of the main physical and chemical properties.

① The significance of grease copper corrosion lies in determining the corrosiveness of grease to metal and its ability to protect metals from corrosion. This is particularly important for the application of grease in copper electrical contacts.

? Test Standard: GB/T 7326 “Test Method for Copper Corrosion of Grease”, Equivalent Method: ASTM-D4048