ASTM D943 for oxidation resistance
Evaluates how well a lubricant resists oxidative breakdown over time. It is particularly relevant for applications where water contamination may occur, offering a benchmark for long-term oxidation stability.

ASTM D1401 for water separation
Examines how effectively a lubricant separates from water following exposure to mixing and agitation. It helps determine the fluid’s dispersancy and its ability to maintain performance in the presence of water.

ASTM D2896 for base number
A titration method used to quantify the level of basic additives in a lubricant, ASTM D2896 determines the base number, which reflects the oil’s capacity to neutralize acids. It is applied in quality control and to monitor lubricant degradation during use.

ASTM D2711 for demulsibility
Evaluates a lubricant’s resistance to forming stable water-in-oil emulsions under turbulence and mechanical stress. The result indicates how easily the lubricant releases water and maintains its protective properties in contaminated environments.

ASTM D4951-09 for detergency
Certain additives in lubricants act as detergents to help prevent deposit buildup on component surfaces. This test identifies and measures these detergent-type additives, providing insight into the oil’s cleaning capability.

ASTM D665 for corrosion resistance
Used to assess a lubricant’s protection against rust and corrosion, especially in the presence of water, this method is often applied in systems such as steam turbines and circulating oils. It evaluates the oil’s ability to prevent corrosion during exposure to moisture.

ASTM D97 for pour point
Determines the lowest temperature at which a lubricant can still flow. ASTM D97 helps define cold-weather performance limits by identifying the temperature at which the oil becomes too viscous to pour.

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