TO10

Thermal Oxidation Stability Test Rig
ASTM D3241, IP 323, ISO 6249, ASTM D1655, D7566, DEF STAN 91-091


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Patent(s) :
U.S. Pat. No. 15/826,272


The ASTM D3241 / IP 323 Thermal Stability test is one of the most important tests for the jet fuel quality. This test method was inherently limited due to the subjectivity in the color standard for tube deposit rating

Recently advanced testing metrics (called metrological method) for quantifying the thermal stability characteristics of jet fuels was declared the referee technique by jet fuel specification bodies.

This new approach highlighted the weaknesses of the existing thermal jet fuel oxidation test rigs. By precisely mapping the thermal oxidation deposit on the surface of the aluminum tube, it became possible to identify issues with existing test rigs that were undetectable with the visual (VTR) rating.

Based on these finding, AD Systems developed a new jet fuel thermal oxidation test rig (TO10) that ensures perfect fuel preparation, perfect fuel flow control, a perfect heater tube temperature profile and perfect thermal deposit quantification with the Deposit Rater - DR10.


Pipeline and terminals
Military fuel testing
Jet fuel testing

For the development of this innovative instrument, all the parameters influencing the accuracy of the D3241 / IP323 test method have been identified. For each of these parameters an innovative and reliable solution has been developed. This very successful apparatus is unmatched in the market

The preparation of the test is simplified. No tools are needed for assembly and the heating tube mounting. An extremely intuitive teaching software makes it possible to very quickly initiate a test and if necessary to follow step by step its progress.

  • ASTM D3241
  • ASTM D1655
  • ASTM D7566
  • IP 323
  • ISO 6249
  • DEF STAN 91-091

  • State of the art automation level
  • Dual 5 mL syringe fuel pumping system, perfect fuel flow control, no pulse
  • Automatic fuel aeration control
  • Didactic and intuitive man-machine interface
  • Independant bus bar temperature control, no cooling liquid
  • DR10 - ITR connectivity for automatic result storage
  • No operator exposure to fuel vapor with safety door and fume extraction

Technical Specification Description
Test method ASTM D3241, IP 323, ISO 6249
Up to 21 programmable test methods
Test Temperature Programmable from 100°C up to 380°C
Differential Pressure 0 - 750 mmHg (automatically bypassed at +700 mmHg)
Test time Range Programmable from 4 to 600 minutes
Fuel Aeration Programmable time, automatic air flow control
Aeration Flow rate Programmable or according to test method, 1.5 L / min
Air Flow Humidity Humidity sensor with displayed message for dessicant replacement
Heater tube temperature measurement Thermocouple Type K, class 1
Fuel Flow Dual 5 mL syringe, maintenance free, programmable fuel flow rate or according to test method
Accuracy ±1%
No flow pulse or peak
Bus Bar Temperature Control Independent and programmable, each bus bar temperature can be adjusted
No liquid cooling circulation
Peltier modules + heat pipe technology
Heater tube section assembling Special gauge to quickly and perfectly position the heater tube
Fuel vapor handling Dedicated compartment with sliding doors acting like fume hood encompassing beakers and heater tube section, connectable to a fume extractor
Diagnostic and Service Dedicated service menu with a flow chart layout with ability to click on each symbolic element to check its operation
DR10 - ITR connectivity Via Ethernet port RJ45
Full test results can be automatically transferred from the DR10 to the TO10
Results storage Result database
Limited only to capacity of external device
LAN connectivity Ethernet port RJ45
Printer output USB (printer is optional)
Data output USB (2), Ethernet
Dimensions (mm) 440 x 600 x 670
(17" x 23" x 26")
Weight 60 kg (133lbs.)
Electrical 100 to 240V - 8 A - 50/60Hz
Operating temperature From +10 to +35°C
Relative humidity 20% to 90% non-condensing