Standard Test Method for Estimation of Deleterious Particles in Lubricating Grease

Importancia y uso:

5.1 The significance of the number of scratches as far as correlation with field performance is concerned has not been established. A particle which is abrasive to plastic will not necessarily be abrasive to steel or other bearing materials. Some correlation was obtained in that the contaminant used in Sample 3 (see 10.1.1) had a greater wear rate in a laboratory ball bearing abrasive wear test than the contaminant in Sample 2.

Note 1: The number of scratches obtained cannot be used to draw fine differences between greases, but rather, to group them into two or three general classes. One such possible division could be:

1 ... . less than 10 scratches

2 ... . 10 to 40 scratches

3 ... . more than 40 scratches

5.2 An advantage of this test method is that each test takes only a few minutes to run.

5.3 This test method is used for quality control and specification purpose.

Subcomité:

D02.G0.01

Volúmen:

05.01

Número ICS:

75.100 (Lubricants, industrial oils and related products)

Palabras clave:

abrasive particles; cleanliness; contamination; deleterious particles; lubricating grease; particles; scratch test ;