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COLLECTION EFFICIENCY OF FIELD SAMPLING CASSETTES: INTERAGENCY ENERGY/ENVIRONMENT R AND D PROGRAM REPORT
Citation:
Fairchild, C., M. Tillery, J. Smith, AND F. Valdez. COLLECTION EFFICIENCY OF FIELD SAMPLING CASSETTES: INTERAGENCY ENERGY/ENVIRONMENT R AND D PROGRAM REPORT. U.S. Environmental Protection Agency, Washington, D.C., EPA/600/7-81/145.
Description:
Industrial hygiene particulate samples are often collected under anisokinetic sampling conditions and in crosswinds. Experiments were conducted to quantitate errors associated with sampling under these non-ideal conditions. Three types of field sampling cassetts were tested to determined particle sampling efficiencies for 0,2, and 5 m/s winds at incidence angles of 0, 90 and 180. Sampling efficiencies were compared to theoretical values calculated from Belyaev and Levin's theory, and Davies' modification for calm air sampling.