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ASTM D972 - Evaporation Loss of Lubricating Greases and Oils

Significance and Use

5.1 The loss of volatile materials from greases and oils can adversely effect the original performance characteristics of a lubricant and therefore could be a significant factor in evalu-ating a lubricant for a specific use. Such volatiles can also be considered contaminants in the environment in which the lubricant is to be used. Correlation between results from this test method and service performance has not been established.

5.2 The test can be run at any agreed upon temperature between 100 °C and 150 °C (210 °F to 300 °F).


1.1 This test method covers the determination of the loss in mass by evaporation of lubricating greases and oils for applications where evaporation loss is a factor. Evaporation loss data can be obtained at any temperature in the range from 100 °C to 150 °C (210 °F to 300 °F).

1.2 The values stated in SI units are to be regarded as standard.

1.2.1 Exception—The values given in parentheses are for information only.

Extracted, with permission, from ASTM D972-16 - Evaporation Loss of Lubricating Greases and Oils, copyright ASTM International, 100 Barr Harbor Drive, West Conshohocken, PA 19428. A copy of the complete standard may be purchased from ASTM International,