ROFOX    Oxidation Stability Tester
The "ROFOX two" and "ROFOX four" are compact and automatic Oxidation Stability Tester with 2 or 4 independent test positions.

The solid electric heating blocks avoid the use of any liquids.

The "ROFOX Control" software controls the entire process including automatic reporting.

All test and safety parameters are permanently monitored for unattended operation.

ROFOX two ROFOX four
ASTM D525, ASTM D873, EN ISO 7536
  • Each test position is equipped with its own electric heating and can be controlled separately. This allows different parameters for each position and a short warm-up.

  • The pressure sensors are without additional accessories directly connected to the front of the device.

  • Fans secures a reliable cooling.

  • The additional extensive softwareindependent safety equipment makes a riskless unattended operation possible.

  • The quickly accessible calibrating-openings on the top and software-support makes the temperature-calibration with a comparison RTD very easy.

  • The high quality pressure sensors are factory calibrated and maintenance free. When necessarily a later calibration is carried out directly on the sensor. This makes the usage of each vessel on each position possible.

  • Each pressure vessel is protected with a burst disc from overpressure.

  • For the connection to the PC only one cable is needed.

  • The Software controls the entire process automatically. From the beginning of the test the software checks continuously the compliance of the selected standard and the settings.

  • The status of each position is monitored continuously. So the software automatically detects whether a vessel is inserted or not.

  • Many test parameters and multiple operators with different user rights are configurable.

  • Several options for automatic data storage are also selectable.

  • A summary of the results for each finished test position is available in the result window.

  • Also there are different options for manual data storage and report generation. The data interpretation and report generation is done automatically


This test method covers the determination of the stability of gasoline in finished form only, under accelerated oxidation conditions.


This test method covers the determination of the tendency of aviation reciprocating, turbine and jet engine fuels to form gum and deposits under accelerated aging conditions.

Tech. parameters
ModelSolid electric heating blocks
Test positions2 or 4 independent test positions
Temperature rangeup to 120 C
Pressure rangeup to 1.240 kPa at 100 C
Electric power230 VAC, 50 Hz, 1.600 W (ROFOX four)
230 VAC, 50 Hz, 900 W (ROFOX two)
Protection classIP20
Dimensions (W x D x H)590 mm x 430 mm x 220 mm (ROFOX four without vessels)
23,3 x 17,0 x 8,7 (ROFOX four without vessels)
380 mm x 430 mm x 220 mm (ROFOX two without vessels)
15,0 x 17,0 x 8,7 (ROFOX two without vessels)
Weightsapprox. 25 kg (55 lbs) ROFOX four without vessels
approx. 18 kg (40 lbs) ROFOX two without vessels
approx. 3 kg (6,5 lbs) per vessel
 ROFOX BrochurePDF