Automatic Oxidation Stability by Rotating Pressure Vessel Method (RPVOT)

Specifications

Complies with ASTM D2272, IP229
Superior in quality
Electronic pressure transmitter
Automatic data acquisition software

Compliance with following international standards

As per ASTM D 2112, D 2272, IP 229

Purpose

These methods used to evaluate the oxidation stability of new and in-service engine, turbine and insulating oils in the presence of water and a copper catalyst coil at 150°C.

Significance & Use

The estimate of oxidation stability is useful in controlling the continuity of this property for batch acceptance of production lots having the same operation. This test method is also used to assess the remaining oxidation test life of in-service oils.

Summary of test method

The test oil, water, and copper catalyst coil, contained in a covered glass container, are placed in a vessel equipped with a pressure gage. The vessel is charged with oxygen to a gage pressure of 620 kPa (90 psi, 6.2 bar), placed in a constant temperature oil bath set at 150°C, and rotated axially at 100 rpm at an angel of 30° from the horizontal. The number of minutes required to reach a specific drop in gage pressure is the oxidation stability of the test sample.