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Test
Method
The ability of a turbine, hydraulic, or lubricating oil to separate entrained
air is a key performance characteristic in applications where agitation
causes a dispersion of air bubbles in the oil. To determine air release
properties, the sample is heated to a specified test temperature and blown
with compressed air. After the air flow is stopped, the time required for the
air entrained in the oil to reduce in volume to 0.2% is the air bubble
separation time.
Features and Benefits
• Conforms to ASTM D3427, IP 313 and related specifications
• Optional data acquisition software package automates sample density measurements
and provides additional tools for the calculation of the air release value,
the first order rate of air release, and the volume percent air versus time
• High accuracy temperature control with digital setpoint and display
• Digital control panel leads user from start to finish of test operation
• Automatic calculation of final sample density for determination of air
release value
• Redundant overtemperature protection circuitry assures safe operation
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