Skip directly to search Skip directly to A to Z list Skip directly to page options Skip directly to site content

NIOSHTIC-2 Publications Search

Search Results

Measurement of the sampling efficiency of personal inhalable aerosol samplers using a simplified protocol.

Authors
Aizenberg-VA; Grinshpun-SA; Willeke-K; Smith-JP; Baron-PA
Source
J Aerosol Sci 2000 Feb; 31(2):169-179
NIOSHTIC No.
20020601
Abstract
Traditional protocols for the performance evaluation of personal inhalable aerosol samplers utilize full-size manikins and large cross-section wind tunnels. Thus, these sampler evaluation procedures are complex, very costly, and time consuming. In addition, it is difficult to provide an adequately uniform wind velocity and aerosol concentration over large cross-section wind tunnels. A simplified test protocol, developed in our recent studies, is evaluated in this paper. The protocol is based on a three-dimensional rectangular simplified torso that simulates the dimensions of the human chest. This arrangement allows simultaneous measurement in four discrete orientations to the wind, thus providing useful orientation-dependent sampler information and possibly reducing the number of measurements needed. Sampling efficiencies of four personal inhalable aerosol samplers (the IOM, GSP, 37-mm closed-face cassette, and the button sampler) were measured using the simplified test protocol and the traditional approach for three particle sizes (7, 29, and 70 m) in four inlet orientations to the wind (0, 90, 180, and 270) and two wind velocities (0.5 and 2.0 m s-1). It was found that when these samplers were mounted on the simplified torso versus the full-size manikin, the sampling efficiencies responded to changes in the sampling conditions in the same way regardless of whether the samplers were mounted on the simplified torso or the full-size manikin. Also, the sampling efficiencies were found not to be statistically different when the samplers were mounted on the simplified torso versus the full-size manikin. Thus, the simplified test protocol was shown to be suitable for the performance evaluation of personal inhalable aerosol samplers.
Keywords
Sampling; Aerosol-sampling; Inhalants; Exposure-methods; Workplace-studies; Aerosols; Aerosol-dispensers; Sampling-equipment; Sampling-methods; Samplers; Testing-equipment
Contact
S.A. Grinshpun, Aerosol Research and Exposure Assessment Laboratory, Department of Environmental Health, University of Cincinnati, Cincinnati, OH 45267-0056, USA
CODEN
JALSB7
Publication Date
20000201
Document Type
Journal Article
Funding Amount
639953
Funding Type
Grant
Fiscal Year
2000
NTIS Accession No.
NTIS Price
Identifying No.
Grant-Number-R01-OH-003328; Grant-Number-T42-CCT-510420
Issue of Publication
2
ISSN
0021-8502
NIOSH Division
DART
Priority Area
Research Tools and Approaches: Exposure Assessment Methods
Source Name
Journal of Aerosol Science
State
OH
Performing Organization
University of Cincinnati, Cincinnati, Ohio
TOP