Calibration Gas

As most manufacturers recommend calibrating confined space monitors with a known concentration test gas prior to use, it’s important that you have access to the correct types of gas. Calibration gas checks can be performed in a tiered approach to ensure compliance – bump tests, calibration checks, a full calibration and a factory calibration.




  • Benzene and BTEX mixtures
  • CO, CL2, H2S, H2, HCN, HCL, NO, NO2, NH3, SO2, etc
  • Exploration mud logging instrument mixtures (C1-C6)
  • GC/MS calibration gas
  • High purity gases
  • High purity hydrogen
  • Methane, ethane, propane, butane, pentane, hexane, etc
  • Multi-hydrocarbon mixtures
  • Natural gas mixtures (methane/ethane)
  • Natural gas odourant calibrations
  • PID/FID calibration
  • PPM, LEL, % volume hydrocarbons
  • Stack gas (SO2, CL2, NO, NO2, etc)
  • Tetrahydrothiophene, methyl mercaptan



  • Coal mining instrument calibration gas (CH4, CO, CO2 and O2)
  • Confined space monitoring
  • PPM, LEL, % volume methane
  • Precious mineral processing (HCN, HCL, SO2 and CO)
  • Underground diesel vehicle emissions (NO, NO2 and CO)
  • Zero gas, nitrogen


Emergency Services (Fire, Police, Medical, Homeland Security)

  • Carbon Monoxide (carboxyhemoglobin) instrument calibrations
  • CO2 calibration
  • Confined space instrument calibration (CO, H2S, CH4 and O2)
  • Ethanol breathalyzer test instrument calibration
  • High purity hydrogen for FID calibrations
  • Isobutylene for PID calibrations
  • Specialty gases for toxic gas analyser calibrations


Occupational Health & Safety (OH&S)

  • Calibration gas for training organisations
  • Confined space entry instrument calibration gas
  • Large volume (high pressure) cylinders for docking stations
  • Multi-gas mixtures (H2S, CO, CH4 and O2)
  • Safety gas detection calibration gas
  • Single toxic gas (CO, CL2, H2S HCL, HCN, NH3, NO, NO2, SO2, etc)


Environmental Monitoring

  • Airborne emissions gas calibration
  • Combustion efficiency testing
  • Environmental consultants
  • Exhaust test calibration gas (CO, NO and NO2)
  • Land full measurement calibration gas (methane)
  • Stack gas (SO2, NO, NO2, CO, etc)
  • Vehicle emissions


Process & Plant Control

  • Fixed system gas detection calibration
  • Process gas analysers



AES provides precision gravimetric calibration gas, specialty gas and high purity gases for all gas detection instruments, environmental gas analysers, process control gas analysers, laboratory gas chromatography and mass spectrometry applications for research or quality assurance. Cylinders are available in small non refillable (disposable), large volume high pressure cylinders and lecture bottles. Also available is a range of low and high pressure regulators, gas distribution systems, gas manifolds and filling panels for multiple cylinder applications.