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Portable octane analyser available from Particle Test

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article image Portable octane analyser

The portable octane analyser, available from Particle Test , determines the Pump Octane Number (AKI), Research Octane Number (RON), and Motor Octane Number (MON) of unleaded gasolines, and optional cetane Index and cetane Number for diesel fuels.

The portable octane analyser measures octane number through near-infrared (NIR) transmission spectroscopy utilising 14 near-infrared emitting diodes with narrow bandpass filters, a silicon detector system, and a fully integrated microprocessor.

Simple octane number determination requires three easy steps, which include the following:

  • Sampling a background signal
  • Acquiring two absorption spectra of the gas sample
  • Acquiring a second background signal

The analyser is pre-calibrated for unleaded gasoline and ethanol-blended fuels, and can be calibrated for up to eight additional fuel types.

The analyser is small, lightweight, and operates on AA batteries or AC. Before each reading, the unit standardises itself to assure accuracy. The octane number is printed with time and date on the built-in printer.

An optional model with a GPS locator and automatic fuel selector is also available. All data can be downloaded through the RS232 port to an external computer.

Features and benefits:

  • Test results equivalent to ASTM D2699 and D2700 test methods
  • Measures all grades of unleaded gasoline
  • Test results equivalent to ASTM D613 for cetane number of diesel fuels (Optional with K88612)
  • Displays results in 20 seconds
  • Directly measures octane number for {(R+M)}/2, RON and MON
  • Optional feature for cetane index and cetane number determination of diesel fuels
  • Includes RS-232 output, built-in printer and LCD display
  • Results traceable to official knock engine laboratory
  • GPS model available for use with GPS locator accessory


  • Accuracy and repeatability equivalent to ASTM approved CFR engines test methods (ASTM D2699 and D2700 for Octane Number and ASTM D613 for Cetane Number)
  • Sample holder: Sealed, cylindrical glass container (75mm optical path length)
  • Sample volume: 8 Ounces (approximately 225ml)
  • Pre-calibrated for unleaded gasoline and ethanol-blended fuels. (Analyser can be calibrated for up to 8 additional fuel types)
  • Battery operated (6 AA batteries)

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