During the oxidation process, oil molecules react with oxygen, among other things. Acidic reaction products and oil-insoluble components are formed. Elevated oil temperatures of over 60 °C, impurities and intensive air intake accelerate the aging process. To delay it as long as possible, additives with phenolic or aminic antioxidants or with salicylates are added to the lubricants. They can buffer and neutralize oxygenated compounds.

Oxidation Stability Apparatus

Oxidation Stability Apparatus Device has a capacity of six samples, oxygenated by six independent flowmeters mounted on a common manifold. Insulated double-wall stainless steel bath features microprocessor temperature control with °C/°F switchable digital set point and display. Built-in control circuit interrupts power to the unit if bath temperature exceeds a programmed cut-off point. Meets ASTM D2440 specifications.


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