A portion of the sample is passed over a slide on top of a magnetic plate to attract ferrous particles. The prepared slide is then placed under a microscope for examination. The particles are then classified into different size ranges and shapes. As a result of this classification, determination of an abnormal wear mode can be made.
This test provides a snapshot into the machine to determine the type and size of the ferrous wear that is coming from a particular piece of equipment. This will allow for a more accurate plan of attack to correct a possible problem or to judge machine health.
Any machine containing significant amounts of ferrous wear debris.