ASTM D2715 Test Method for Volatilization Rates of Lubricants in Vacuum
3. Summary of Test Method
3.1 A known quantity of specimen is placed in a thermal vacuum balance system and the evaporated material is condensed on a cold plate. The weight of the specimen is continually recorded as a function of time for nominal constant surface area.
4. Significance and Use
4.1 This test method provides data for comparison of the evaporation rate of lubricants used in unshielded bearings in the space environment.
