EN 16028 Annex B Water Wash Off (Railway Applications-Wheel/Rail Friction Management Lubricants for Train Borne and Trackside Applications – Water Wash Off)
Railroads rely on specialized wheel-rail interface lubricants (curve lubricants) to limit friction, noise, wear and energy consumption. For a lubricant to be effective, it needs to protect metal components when exposed directly to rain or water splashed from other sources. This test indicates the ability of a lubricant to stay adhered to and prevent corrosion on wheel-rail interfaces.
The lubricant is applied to a standard metal plate. Water is dropped onto the plate for 24 hours as specified by the test method. The plate is then allowed to dry for 48 hours and evaluated for corrosion on the steel plate or ruptures in the grease coating surface.