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Research in Dust (AIHce EXP 2020 OnDemand)
Recorded at Virtual AIHce EXP 2020

Earn 1 Contact Hour

Presentations

Comparison Between OSHA Combustible Dust Directive, NFPA Combustible Dust Methodologies, and ASTM Guidelines
This presentation provides an investigative look into the differences between sampling methodologies and analytical techniques available for combustible dust analysis. This discussion will address the key differences and similarities between OSHA, NFPA, and ASTM recommendations regarding classification and testing of combustible dusts. Presenter: John Passero, EMSL Analytical Cinnaminson, NJ, United States of America

Epidemiological Study Evaluating Health Effects of Copper Dust Exposures Among Workers of a German Copper Smelter
Few studies are available that have evaluated potential effects in workers exposed to copper workplace dust. A historical cohort study was performed to investigate potential health effects of copper dust exposure on workers of a German copper smelter. Key variables of interest were spirometry data, especially the forced expiratory volume in one second (FEV1) and its decline over time. Presenter: Lisa-Marie Theis, Ramboll Deutschland GmbH BERLIN, Berlin, Germany

Calibrating Direct Reading Photometers for Airborne Dust
A direct reading instrument that provides real-time quantitative aerosol concentration data that agrees with NIOSH 0500 or 0600 gravimetric sampling and analytical methods would provide a solution to many industrial hygiene applications. Light scattering photometric aerosol instruments deployed with an application specific correction factor are sometimes presented as the answer. Determining the application specific correction factor is laborious, time consuming, costly, and illusive. This paper presents data from three sampling sessions in which pump and filter gravimetric air samples were simultaneously collected side-by-side with three different photometric aerosol instruments. Each sampling session was composed of three eight-hour sample runs in which gravimetric and instrument samples were simultaneously collected. The photometric instruments used a correction factor of 1.0 for the first session. Correction factors for subsequent sessions were modified based on the gravimetric and instrument sampling results. The goal was to identify an application specific correction factor that allows use of a photometric direct reading instrument to reliably and within reasonable tolerance provide real-time quantitative data that reasonably matches data from validated gravimetric NIOSH sampling and analytical methods. Presenter: Karl Braun, P.E., CIH, Cleveland-Cliffs, Inc Edina, MN, United States of America


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