ASTM D8022 – Shear Stability of Grease in Presence of Water (Roll Stability )

ASTM D8022 – Roll Stability of Lubricating Grease in the Presence of Water (Wet Roll Stability Test)

Lubricating greases exposed to wet environments, such as those used in steel mills, boat trailers, exposed fifth wheels and other outdoor grease-lubricated systems, may become contaminated with water.  If the water, combined with mechanical stresses change the consistency (penetration values) of the grease, it may compromise the lubricant’s effectiveness.  This test uses a roll stability apparatus with added water to assess the mechanical stability of a grease with water contamination.  It may also be used for specification adherence as a wet structural stability test.

An initial ½ scale worked penetration is determined for the grease.  The grease is then placed in the roll stability tester (see ASTM D1831)  in the presence of 10% water and rolled for 2 hours at 27°C (+8°C/-7°C).  A final worked penetration is determined.  Reported are the initial, final and change in penetration values.  Please let us know if you would like a different time, speed or temperature for this test.

Price: $228.00

Sample size: 130 grams

Related tests:

• ASTM D1831 – Roll Stability 2 hrs.@ Ambient
• ASTM D1403 – Penetration, Unworked or Worked, 1/2 Scale