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Safety and Health Topics > Multimedia > Quartz Slide Presentation > Particle Counting - Quartz

Particle Counting - Quartz   10 of 72   Next   Back   Menu   Index   Samples for quartz particle counting are taken by use of a sampling pump and an impinger containing 95% ethanol or isopropanol/water. This collection technique was only recently disbanded; it was required by OSHA regulation for determining compliance to quartz exposures in the construction industry. Results were reported out as millions of particles of quartz per cubic foot of air. Problems associated with impinger breakage, spillage, flammable nature of the collection solutions, and inability to provide the analysis on a rapid basis helped to diminish use and a change in the regulation.

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