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ASTM D2783-88(1998)

Historical Reaffirmation

Standard Test Method for Measurement of Extreme-Pressure Properties of Lubricating Fluids (Four-Ball Method)

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1.1 This test method covers the determination of the load-carrying properties of lubricating fluids. The following two determinations are made:

1.1.1 Load-wear index (formerly Mean-Hertz load) and

1.1.2 Weld point by means of the four-ball extreme-pressure (EP) tester.

1.2 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.

1.3 The values stated in either inch-pound units or SI (metric) units are to be regarded separately as standard. Within the text the inch-pound units are shown in brackets. The values stated in each system are not exact equivalents, therefore each system must be used independently of the other. Combining values of the two systems may result in nonconformance with the test method.


SDO ASTM: ASTM International
Document Number D2783
Publication Date Nov. 10, 1998
Language en - English
Page Count 8
Revision Level 88(1998)
Supercedes
Committee D02.L0.11
Publish Date Document Id Type View
Nov. 1, 2021 D2783-21 Revision
May 1, 2019 D2783-19 Revision
April 15, 2009 D2783-03R09E01 Revision
Aug. 10, 2003 D2783-03 Revision
Dec. 1, 2014 D2783-03R14 Reaffirmation
April 15, 2009 D2783-03R09 Reaffirmation
Nov. 10, 1998 D2783-88R98 Reaffirmation