Tailpipe emissions: Heavy duty

Whether for research & development, emissions regulations such as Euro VI in-service conformity or benchmarking technologies and alternative fuels, our customers turn to us for unrivalled expertise in the application of Portable Emissions Measuring Systems (PEMS).

Measurements available both raw exhaust and post-aftertreatment:

  • Fuel economy (Mpg) and fuel consumption (L/100km)
  • Carbon monoxide (CO)
  • Carbon dioxide (CO2)
  • Nitric oxide (NO)
  • Nitrogen dioxide (NO2)
  • Oxides of nitrogen (NOx = NO + NO2)
  • Nitrous oxide (N2O)
  • Total hydrocarbons (THC)
  • Particle number (PN, lower size cut-off 23 nm)
  • Particle mass (PM)
  • Ammonia (NH3)
  • Formaldehyde (CH2O)
  • Speciated volatile organic compounds (VOCs)
  • Sulphur dioxide (SO2)
  • Methane (CH4)
  • Non-methane hydrocarbons (NMHC).