Evaluation of the 10-mm Nylon-Cyclone for Sampling Respirable Talc.
Bowman JD; Murdock DJ; Baron PA
NIOSH 1980 Apr:16 pages
The efficiency of a 10 millimeter nylon-cyclone for sampling respirable talc was evaluated. A fluidized bed aerosol generator was employed to generate the refined yellowstone talc used in the study. Particles larger than respirable size were also used. Tests were performed inside a sampling chamber where talc concentrations ranged from 56.5 to 95.4 milligrams per cubic meter, during the 3 hour sampling period. The sizeable build up of talc in the cyclone barrel did not affect the amount of talc collected on the filter. The authors conclude that although the talc build up did not significantly alter the fraction of the dust collected on the filter, further measurements are needed to determine if the size distribution was altered. They recommend that the potential bias in weighing due to the collection of talc on the cassette walls should also be studied.
Mineral-dusts; Dust-sampling; Dust-analysis; Dust-collectors; Air-sampling; Air-sampling-equipment; Analytical-instruments; Analytical-processes;
NTIS Accession No.
Division of Physical Sciences and Engineering, NIOSH, Cincinnati, Ohio, 16 pages