In general, the dropping point is the temperature at which the grease passes from a semisolid to a liquid state under the conditions of test. This change in state is typical of greases containing as thickeners soaps of conventional types. Greases containing as thickeners materials other than conventional soaps can, without change in state, separate oil. This test method is useful to assist in identifying the grease as to type and for establishing and maintaining bench marks for quality control. The results are considered to have only limited significance with respect to service performance as dropping point is a static test.
Note 18212;Cooperative testing indicates that in general, dropping points by Test Method D 5665 and Test Method D 2265
1.1 This test method covers the determination of the dropping point of lubricating grease.
1.2 This test method is not recommended for use at bath temperatures above 288176C. For higher temperatures Test Method D2265 should be used.
1.3 This standard does not purport to address all of the safety problems, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. For specific hazard statements, see 6.4 and 8.1.
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