ROLL STABILITY OF LUBRICANT GREASE ASTM D1831
This test method covers determination of the changes in the consistency, as measured by cone penetration, of lubricating greases when worked in the roll stability test apparatus. The roll stability test is widely used in specifications. Test results are significant in so far as the can show a directional change in consistency that could occur in service. No accurate correlation is established between the test results and shear stability in actual service.