GB/T 391-1977 "Method for Determining the Corrosion Degree of Engine Lubricating Oil" stipulates the method for measuring the corrosion degree of engine lubricating oil. The standard covers the test principle, equipment, test steps and result calculation. Through specific test conditions, the degree of corrosion of lubricating oil to metals can be quantified. It provides a scientific basis for evaluating the mass of engine lubricating oil and judging its corrosiveness to engine parts to ensure the normal operation of the engine.
| Status | Active |
|---|---|
| CCS | E34 | ICS | 75.100 |
| Release Date | 1977-11-08 00:00:00 | Implementation Date | 1978-01-01 00:00:00 |