CPC, DMA and SMPS calibrations
Air Quality
Information
CPC calibrations
NPL has a UKAS accredited calibration service for condensation particle counters (CPCs) that is traceable to NPL’s Faraday Cup electrometer and primary reference standards.
DMA and SMPS calibrations
Calibrations services offered by NPL cover both differential mobility analyser (DMA) and scanning mobility particle sizer (SMPS) instruments common to the automotive industry.
VPR and PEMS calibrations
NPL offers calibration services for both volatile particle remover (VPR) and complete portable emissions measurement systems (PEMS).
Gas standards for vehicle emission measurements
NPL also provides gas standards for calibrating vehicle emissions monitors, which can be prepared to the requirements of the customer.