ASTM D2783-88(1998)
Historical Standard: ASTM D2783-88(1998) Standard Test Method for Measurement of Extreme-Pressure Properties of Lubricating Fluids (Four-Ball Method)
SUPERSEDED (see Active link, below)
ASTM D2783
1. Scope
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.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
ASTM Standards
D2596 Test Method for Measurement of Extreme-Pressure Properties of Lubricating Grease (Four-Ball Method)
ANSI Standard
B3.12 Metal Balls Available from American National Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036.Keywords
extreme pressure properties (in lubricating fluids); load wear index; weldpoint; EP (extreme-pressure) lubricants; Four-ball method; Load-wear index; Lubricants (fluid); Pressure testing--petroleum products; Weldpoint;
ICS Code
ICS Number Code 75.100 (Lubricants, industrial oils and related products)
DOI: 10.1520/D2783-88R98
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