D4172-94(1999)
Standard Test Method for Wear Preventive Characteristics of Lubricating Fluid (Four-Ball Method)

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 ASTM-D-2266.

 

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