This document specifies a method for evaluating the resistance of a lubricating grease to washout by water from a bearing, when tested at 38 °C or 79 °C under specified laboratory test conditions.


This test method estimates the resistance of greases to washout from ball bearings under specified conditions. No formal correlation with field service has been established so far.


This document is used for development and specification purposes.


NOTE      For the purposes of this document, the term “% (m/m)” is used to represent the mass fraction.