Of good analysts and black boxes...
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Biomedical subjects
Publications and source records attributed to B Levadie.
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Counting respirable dust particles using bright field microscopy has been the classic approach for rapid practical evaluation of the dustiness of workplace atmospheres. The technique has been beset with difficulties arising out of variations in the optical systems and the counting cells used by various laboratories. This papar reviews the history of the technique and some of the problems which have been encountered. It also details the method used by the Vermont Division of Occupational Health for the past 20 years to count dust, describing the easily reproducible optical system and the use of a "thin" hemocytometer cell employed.
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Explore the source record for details and available documents.
Explore the source record for details and available documents.
Explore the source record for details and available documents.
Explore the source record for details and available documents.