| ASC |
Ammonia Slip Catalyst |
| C-DPF |
Catalysed Diesel Particulate Filter |
| CB-DPF |
Catalyst-Based Diesel Particulate Filter |
| CNC |
Condensation Nucleus Counters |
| CRT |
Continuously Regeneration Trap |
| CPC |
Condensation Particle Counter |
| DMPS |
Differential Mobility Particle Sizer |
| DOC |
Diesel Oxidation Catalyst |
| DPF |
Diesel Particulate Filter |
| DPM |
Diesel Particulate Matter |
| EGR |
Exhaust Gas Recirculation |
| ELPI |
Electrical Low-Pressure Impactor |
| ELR |
European Load Response Test |
| ESC |
European Steady State |
| ETC |
European Transient Cycle |
| FAS |
Free Acceleration Smoke |
| HD |
Heavy-Duty |
| HDV |
Heavy-Duty Vehicle |
| ICP-MS |
Inductively Coupled Plasma Mass Spectroscopy |
| NEDC |
New European Drive Cycle |
| NO2 |
Nitrogen Dioxide |
| NOx |
Nitrogen Oxides |
| PAS |
Photoelectric Aerosol Sensor |
| PASS |
Photo Acoustic Soot Sensor |
| PM |
Particle Emissions/Particulate Matter |
| PM-Kat |
Particulate Matter Catalyst |
| PMP |
UN-ECE Europe Particle Measurement Programme |
| SCR |
Selective Catalyst Reduction |
| SMPS |
Scanning Mobility Particle Sizer |
| TEOM |
Tampered Element Microbalance mass monitor |
| VERT |
EC funded project BRPR-CT97-0461 |
| WHTC |
World-wide Harmonised Transient Cycle (for Heavy Duty Engines) |