K70000 Oxidation Pressure Vessel, RBOT / TFOUT


Test Method
The RBOT procedure employs severe oxidation conditions to rapidly determine oxidation stability. Suitable for both new and in-service oils, the RBOT method is applicable to many types of petroleum oils. The sample is oxidized in the presence of water and a copper catalyst in a stainless steel pressure vessel under an initial pressure of 90psi (620kPa). Pressure inside the vessel is recorded electronically or mechanically while the vessel is rotated at 100rpm at constant temperature, and the amount of time required for a specified drop in pressure is the oxidation stability of the sample. A variation of the RBOT method is the “Thin Film Oxidation Uptake Test” (TFOUT) for gasoline automotive engine oils.

Features and Benefits
• Polished stainless steel construction

• Can be converted for use in the Thin Film Oxidation Uptake Test (TFOUT)


K70000 Oxidation Pressure Vessel, RBOT / TFOUT
Consists of pressure vessel body, cap and stem with inlet needle valve in accordance with ASTM specifications. Vessel holds one borosilicate glass sample container between two PTFE discs. Closure ring tightens by hand to seal cap to pressure vessel body. Vessel connects to pressure recorder or rotary transducer and rotates on magnetic carriage in RBOT bath. Withstands working pressure of 500psi (3450kPa) per ASTM specifications. Stainless steel construction ensures proper rate of heat transfer. Closure ring is constructed of chrome plated steel. Includes PTFE fluorocarbon wear disc and sample container cover disc.

Conforms to the specifications of: ASTM D2112, D2272, D4742; IP 229

Ordering Information



Product Description


Oxidation Pressure Vessel


Aluminum Insert
Converts standard K70000 Oxidation Pressure Vessel for use in the TFOUT method.