Record Display for the EPA National Library Catalog


Main Title In-situ Aerodynamic Sizing of Aerosol Particles with the Spart Analyzer.
Author Mazumder, M. K. ; Ware, R. E. ; Wilson, J. D. ; Renninger, R. G. ; McLeod, P. C. ;
CORP Author Arkansas Univ. at Little Rock.;Environmental Sciences Research Lab., Research Triangle Park, NC.
Year Published 1982
Report Number EPA-R-804429; EPA/600/3-82-009;
Stock Number PB82-197195
Additional Subjects Particle size distribution ; Aerosols ; Air pollution ; Samples ; Optical properties ; Electrical properties ; Performance evaluation ; Design criteria ; Single particle aerodynamic relaxation time analyzers
Library Call Number Additional Info Location Last
NTIS  PB82-197195 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 47p
A single particle aerodynamic relaxation time (SPART) analyzer has been developed to measure the aerodynamic size distribution of aerosol particulates in the range 0.1 to 10.0 micrometer in diameter. The analyzer sizes and counts individual suspended particles and droplets from sampled aerosols, determines their aerodynamic diameter, and generates the size distribution in real-time. The measurement is independent of the electrical and optical properties of the particles. The size range and resolution of the SPART analyzer depend on the acoustic frequency. Operating at 27 kHz, the instrument's effective sampling rate was calibrated in the range of 0.3 to 6.0 pm using test aerosols containing monodisperse polystyrene latex spheres (PLS) and olive oil droplets. The instrument can count and size aerosol particulates at a maximum rate of 200 particles/sec. The sensing volume of the instrument is approximately .00001 cc, which allows the size distribution measurement of an aerosol containing a relatively high particulate concentration without an appreciable coincidence loss.