ASTM D1404 Test Method Estimation of Deleterious Particles in Lubricating Grease
9. Report
9.1 Report the following information:
9.1.1 Date,
9.1.2 Grease identity,

9.1.3 Test pressure to the nearest 10 psi [0.07 MPa], and

9.1.4 Total number of scratches on the two test plates.

10. Precision and Bias
10.1 Precision - The precision of this test method was not determined with any currrently acceptable guidelines of either ASTM or Committee D-2.
10.1.1 A series of cooperative tests were run on three grease samples, two of which were artificially contaminated. The results from six different laboratories were:


10.2 Bias - The procedure in Test Method D1404 has no bias because the value of the estimation of deleterious particles in lubricating grease can be defined only in terms of a test method.

11. Keywords
11.1 abrasive particles; cleanliness; contamination; deleterious particles; lubricating grease; particles; scratch test