quote:D4172-94(2004) Standard Test Method for Wear Preventive Characteristics of Lubricating Fluid (Four-Ball Method)
Developed by Subcommittee: D02.L0.11
See Related Work by this Subcommittee
Adoptions: DOD Adopted; ANSI Approved
Book of Standards Volume: 05.02
1.1 This test method covers a procedure for making a preliminary evaluation of the anti-wear properties of fluid lubricants in sliding contact by means of the Four-Ball Wear Test Machine. Evaluation of lubricating grease using the same machine is detailed in Test Method D2266.
1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
1.3 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.
2. Referenced Documents
D2266 Test Method for Wear Preventive Characteristics of Lubricating Grease (Four-Ball Method)
B3.12 Specification for Metal Balls
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