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ASTM D566-16

Historical Revision

Standard Test Method for Dropping Point of Lubricating Grease (Withdrawn 2023)

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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 288 °C. For higher temperatures Test Method D2265 should be used.

1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.4 WARNING—This test method uses mercury-filled thermometers. Mercury has been designated by many regulatory agencies as a hazardous material that can cause central nervous system, kidney and liver damage. Mercury, or its vapor, may be hazardous to health and corrosive to materials. Caution should be taken when handling mercury and mercury containing products. See the applicable product Safety Data Sheet (SDS) for details and EPA’s website— http://www.epa.gov/mercury/faq.htm—for additional information. Users should be aware that selling mercury and/or mercury containing products into your state or country may be prohibited by law. The responsible subcommittee, D02.G.3, continues to explore alternatives to eventually replace the mercury thermometers.

1.5 This standard does not purport to address all of the safety concerns, 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.


5.1 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 1: Cooperative testing indicates that in general, dropping points by Test Method D5663 and Test Method D2265 are in agreement. In cases where results differ, there is no known significance. However, agreement between producer and consumer as to the test method used is advisable.

SDO ASTM: ASTM International
Document Number D566
Publication Date April 1, 2016
Language en - English
Page Count 5
Revision Level 16
Supercedes
Committee D02.G0.03
Publish Date Document Id Type View
May 1, 2020 D0566-20 Revision
May 1, 2017 D0566-17 Revision
April 1, 2016 D0566-16 Revision
April 10, 2002 D0566-97E01 Revision
April 10, 2002 D0566-97 Revision
April 10, 2002 D0566-02 Revision
Not Available D0566-76R82E01 Revision
Not Available D0566-76 Revision
April 15, 2009 D0566-02R09 Reaffirmation