ASTM D4049 Standard Test Method for Determining the Resistance of Lubricating Grease to Water Spray
4. Summary of Test Method
4.1 The grease to be tested is coated on a stainless steel panel and sprayed with water at the specified test temperature and pressure. The amount of grease remaining on the panel after 5 min +/- 15 s is a measure of the resistance of the grease to water spray.
5. Significance and Use
5.1 This test method is used to evaluate the ability of a grease to adhere to a metal surface when subjected to direct water spray. The results obtained from the use of this test method suggest correlation in operations involving direct water spray impingement such as steel mill roll neck bearing service. This test method is used for quality control and purchase specifications.
