Oxidation

Definition

Oxidation measures the breakdown of a lubricant due to age and operating conditions. It prevents additives from performing properly, promotes the formation of acids and increases viscosity.

Standard Test Method Used

FTIR - ASTM E2412

Reporting Measurement

abs/cm (absorbance units per centimeter)

Amount of Sample Needed

40 mL

Test Limitation

Significant contamination of water, glycol, soot or fuel may affect all FTIR results. Ester-based lubricants will show high oxidation values.

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