The 2nd ACTRIS intercomparison and calibration workshop for nano particle size spectrometers

Published: 20, May, 2026

The 2nd ACTRIS intercomparison and calibration workshop for nano particle size spectrometers (nano-MPSS, optimized <10nm) was organized in Helsinki in May 2026. These workshops are the activity of the Cluster Calibration Center, which is a unit under the ACTRIS Centre for Aerosol In-Situ Measurements hosted by the University of Helsinki. The unit aims to standardize the measurements of sub-10 nm aerosol particles and develop their calibration methods and practices. The workshop included participants from one ACTRIS National Facility, two external companies and recently developed UF-DMPS by the University of Helsinki/ CCC.

Future CCC workshops in 2026/2027 in Helsinki

2-6.11.2026: Calibration and intercomparison workshop for Neutral cluster and Air Ion Spectrometers (NAIS)

Spring/summer 2027 (tbd): Calibration and intercomparison workshop for Neutral cluster and Air Ion Spectrometers (NAIS)

Fall 2027 (tbd): Calibration and intercomparison workshop for Particle Size Magnifiers (PSM)