Conference Agenda

Session

WG3: Measurement Techniques for the Number Concentration and Size Distribution of Ultrafines

Time:

Tuesday, 02/Sept/2025:

3:00pm - 4:30pm

Session Chair: Miikka Dal Maso
Session Chair: Oliver F. Bischof

Location: Room Leonardo

Presentations

3:00pm - 3:15pm
TU4-2: 1

Use of existing particle number periodic technical inspection (PN-PTI) devices to measure gasoline exhaust

Una Trivanovic¹, Tobias Hammer¹, Kevin Auderset¹, Anastasios Melas², Barouch Giechaskiel², Konstantina Vasilatou¹

¹Particles and Aerosols Laboratory, Federal Institute of Metrology METAS, Bern, CH-3003, Switzerland; ²European Commission, Joint Research Centre (JRC), I-21027 Ispra, Italy

3:15pm - 3:30pm
TU4-2: 2

Concurrent supersaturations of alcohols and water in a Condensation Particle Counter to enhance the detection of naturally charged 1 to 5nm flame-formed carbonaceous aerosols

Farnaz Khosravi¹, Arantza Eiguren-Fernandez², Gregory Lewis², Francesco Carbone¹

¹University of Connecticut; ²Aerosol Dynamics

3:30pm - 3:45pm
TU4-2: 3

PN Counting Down to 2.5 nm and up to 10e6 #/cm-3 by Combining Condensational Droplet Magnification with Diffusion Charging

Helmut Krasa¹, Sebastian Schurl², Victoria M. Fruhmann¹, Martin Kupper¹, Alexander Bergmann¹

¹Graz University of Technology, Institute of Electrical Measurement and Sensor Systems Austria; ²Graz University of Technology, Institute of Thermodynamics and Sustainable Propulsion Systems

3:45pm - 4:00pm
TU4-2: 4

Sizing Accuracy of DMA Down to 10 nm with Silver Aerosols from the Silver Particle Generator (SPG)

Tobias Hammer¹, Mohsen Kazemimanesh², Ibolya Kepiro², Hans-Joachim Schulz³, Konstantina Vasilatou¹

¹Federal Institute of Metrology METAS, Bern-Wabern, Switzerland; ²National Physical Laboratory (NPL), Teddington, United Kingdom; ³Catalytic Instruments GmbH & Co.KG, Rosenheim, Germany

4:00pm - 4:15pm
TU4-2: 5

Further Characterisation of the Sublimation Particle Counter Concept

Patrick Weber¹, Oliver Felix Bischof^1,2, Andreas Petzold¹, Ulrich Bundke¹

¹Forschungszentrum Jülich GmbH, Institute of Energy and Climate Research: Troposphere (ICE-3); ²TSI GmbH, Particle Instruments, Aachen, Germany

4:15pm - 4:30pm
TU4-2: 6

Evaluation of a CEN-SMPS in Fast Scan Mode for a better UFP detection

Arpit Malik¹, Andreas Nowak¹, Johannes Rosahl¹, Stergios Vratolis², Maria I. Gini², Konstantinos Eleftheriadis²

¹Airborne Nanoparticles (3.43), Physikalisch-Technische Bundesanstalt (PTB), Braunschweig, 38116, Germany; ²Institute of Nuclear and Radiological Science & Technology, Energy & Safety, Attiki, Greece