Emissions Analytics: The testing and data specialist for real-world emissions

Whether for research & development, regulatory preparation or benchmarking, our customers turn to us for unrivaled expertise in the application of Portable Emissions Measuring Systems (PEMS).

We are pleased to now offer N2O, NH3 and VOC tailpipe analysis in addition to gaseous and particulate emissions.

Operations in the UK, Germany, USA and South Korea enable us to test globally, wherever and whenever you need us—including your laboratory.

PEMS testing


  • Passenger cars
  • Buses and coaches
  • Commercial vehicles
  • Non-road mobile machinery (NRMM)/Off-highway
  • Generators
  • Marine vessels
  • Trains

Test methods

  • Benchmarking – vehicles and products, such as fuels
  • CWA17379 Comité Européen de Normalisation (CEN) standardised benchmarking
  • Stage V In-Service Monitoring (ISM)
  • Euro VI In-Service Conformity (ISC)
  • USEPA CFR 1065
  • Intervention – before and after testing for products, such as additives
  • Regulatory – pre-type-approval design and validation and post-type-approval in-use surveillance and testing for Real Driving Emissions (RDE), and Worldwide Harmonized Light Vehicle Test Procedure (WLTP)
  • Non-regulatory – off-cycle real-world testing
  • Problem diagnosis and resolution


Measurements available both pre- (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)
  • Particulate number (PN, lower size cut-off 23 nm)
  • Particulate mass (PM)
  • Ammonia (NH3)
  • Formaldehyde (CH2O)
  • Speciated volatile organic compounds (VOCs)
  • Sulphur dioxide (SO2)
  • Methane (CH4)

Emissions Analytics (Head Office)
Unit 2, CR Bates Industrial Estate
Wycombe Road
Stokenchurch, High Wycombe
Buckinghamshire HP14 3PD
United Kingdom

Email: info@emissionsanalytics.com

UK: +44 (0)20 7193 0489
US: +1 424 257 0257
Germany: +49 (0)5308 5169 800
South Korea: +82 (0)70 5213 7700