NIOSH Mining Laboratory

A marple chamber is used to simulate an aerosol atmosphere found in underground mines

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The Diesel/Aerosol Research Laboratory is capable of generating diesel particulate matter (dpm) or other aerosols within an isolated Marple chamber. Particulate emissions within this chamber closely simulate dpm and dusts found in an operating underground mine. This laboratory is equipped with a tapered element oscillating microbalance for determining dust mass and other instruments that permit measurement of particle size distribution and concentration. It also contains carbon analyzers to perform NIOSH 5040 on field and laboratory samples. The laboratory supports the investigation of dpm sampling and measurement concerns, the development and production of size selective samplers, and other projects concerning exposure to diesel emissions.

Site:  Pittsburgh Research Laboratory