Record Display for the EPA National Library Catalog


Main Title Particle detector by mechanical impact sensing
Author Benarie, Michel M. ; Quetier., Jean-Pierre
Other Authors
Author Title of a Work
Benarie, Michel M.
Quetier, Jean-Pierre.
Nader, John S.
CORP Author Institut National de Recherche Chimique Appliquee, Paris (France).;National Environmental Research Center, Research Triangle Park, N.C. Chemistry and Physics Lab.
Year Published 1975
Report Number EPA-600/2-75-025; EPA-R-802424; EPA-ROAP-26AAM
Stock Number PB-247 212
OCLC Number 52499888
Additional Subjects Aerosols ; Air pollution ; Particles ; Detectors ; Impactors ; Particle size ; Aerosols ; Measuring instruments ; Instrumentation ; Monitors ; Counters ; Atmospheres ; France ; Air pollution detection ; Particulates ; Particle counters
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
EKBD  EPA-600/2-75-025 Research Triangle Park Library/RTP, NC 06/27/2003
NTIS  PB-247 212 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation ix, 67 p. : ill. ; 28 cm.
Particulate impact has been used for the detection and measurement of raindrops and micrometeorites for several decades. Aerosols might be detected in the same way if the suspension is expanded rapidly when it enters through a capillary in a nearly evacuated vessel. If the accelerating capillary is relatively long and the pressure inside the vessel below 1 torr, particulate beams are obtained. They enable the study of particle velocities, their rebound properties, etc. For particulate beam conditions, impact sensing is mass concentration proportional, grain size and substance independent, and sensitivity may rate from the detection of single particle to the range of mg/(m cubed). With short nozzles and chamber pressure above 1 torr, impact sensing remains possible but marked grain size dependence and possible substance dependence complicate the phenomenon.
Project Officer: John S. Nader. "June 1975." "EPA-600/2-75-025." "ROAP No. 26AAM-36, Program Element No. 1AA010"-- t.p. Includes bibliographical references. Institut Nat'l de Recherche Chimique Appliquee