ASTM D5969 Test Method for Corrosion-Preventive Properties of Lubricating Greases
ASTM D5969 Standard Test Method for Corrosion-Preventive Properties of Lubricating Greases in Presence of Dilute Synthetic Sea Water Environments
4. Summary of Test Method
4.1 New, cleaned, and lubricated bearings are run under a light thrust load for 60 +/- 3 s to distribute the lubricant in a pattern that might be found in service. The bearings are exposed to a solution of synthetic sea water at some percentage in distilled water, then stored for 24 +/- 1/2 h at 52 +/- 1°C and 100 % relative humidity. After cleaning, the bearing cups are examined for evidence of corrosion.
5. Significance and Use
5.1 This test method differentiates the relative corrosion-preventive capabilities of lubricating greases under the test conditions.
