Articles | Volume 9, issue 4
Research article
07 Apr 2016
Research article |  | 07 Apr 2016

Intercomparison of 15 aerodynamic particle size spectrometers (APS 3321): uncertainties in particle sizing and number size distribution

Sascha Pfeifer, Thomas Müller, Kay Weinhold, Nadezda Zikova, Sebastiao Martins dos Santos, Angela Marinoni, Oliver F. Bischof, Carsten Kykal, Ludwig Ries, Frank Meinhardt, Pasi Aalto, Nikolaos Mihalopoulos, and Alfred Wiedensohler

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Cited articles

Agarwal, J. K. and Fingerson, L. M.: Real-time aerodynamic particle size measurement with a laser velocimeter, TSI Quarterly, V(1), 1979.
Armendariz, A. J. and Leith, D.: Concentration measurement and counting efficiency for the aerodynamic particle sizer 3320, J. Aerosol Sci., 33, 133–148, 2002.
Chen, B. T., Cheng, Y. S., and Yeh, H. C.: Performance of a TSI aerodynamic particle sizer, Aerosol Sci. Tech., 4, 89–97, 1985.
Karg, E., Dua, S. K., and Tschiersch, J.: Experimental counting efficiency of the TSI aerodynamic particle sizer in the submicron range, J. Aerosol Sci., 22, 351–354, 1991.
Peters, T. M. and Leith, D.: Concentration measurement and counting efficiency of the aerodynamic particle sizer 3321, J. Aerosol Sci., 34, 627–634, 2003.
Short summary
15 aerodynamic particle size spectrometers (APS model 3321, TSI Inc., St. Paul, MN, USA) were compared with a focus on flow rates accuracy, particle sizing, and unit-to-unit variability of the particle number size distribution. Flow rate deviations were relatively small, while the sizing accuracy was found to be within 10 % compared to polystyrene latex reference particles. The unit-to-unit variability in terms of the particle number size distribution during this study was between 10 % and 60 %.