Work Item
ASTM WK86025

Revision of D2596-20 Standard Test Method for Measurement of Extreme-Pressure Properties of Lubricating Grease (Four-Ball Method)


The current test method does not include a speed ramp rate i.e. how long it takes to get 1770 r/min after the start button is pressed. It has been identified that some new machines take < 0.1 s whilst others take up to 1 s. The purpose f this revision is to standardize on a ramp rate / time to reach the test speed.


Developed by Subcommittee: D02.G0.04

Committee: D02

Staff Manager: Alyson Fick

Work Item Status

Date Initiated: 04-19-2023

Technical Contact: Gareth Fish

Item: 000