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Mining Publication: Laboratory Evaluation of Pressure Differential-based Respirable Dust Detector Tube
Keywords: Personal dust monitors Respirable dust Respirable dust level
Original creation date: January 2000
Authors: JC Volkwein, AL Schoeneman, SJ Page
Peer Reviewed Journal Article - January 2000
Download PDF Document (0.69 MB)
NIOSHTIC2 Number: 20022682
Appl Occup Env Hyg 2000 Jan 15(1):158-164
Assessment of exposure to occupational dusts is a first step in reducing exposures to harmful dust concentrations. A new type of respirable dust sampler was developed and compared side-by-side to personal gravimetric samplers in the laboratory. The new sampler correlates filter back pressure with mass accumulation to provide mid-shift- and end-of-shift determinations of cumulative exposure. The sampler uses a small low flow rate pump to draw dust through a small detector tube that contains a porous urethane foam respirable classification section and glass fiber filter that collects respirable dust. Six different coal dusts were aerosolized in a laboratory dust chamber and a total of 119 triplicate observations were obtained. For individual coal types, the correlation coefficients were between 0.87 and 0.97. The precision of the two methods was similar, with the percent relative standard deviation of the personal samplers of 12 percent and the new detector method of 14 percent. For all coal types tested th data were best described by a power function where delta P = 1.43 mass (0.85), with a correlation coefficient of 0.73. The method becomes more accurate at higher dust loadings such that all laboratory data with mass loadings greater than an equivalent concentration of 2 mg/m3 fall within +/- 25 percent of the power function. Assessment of the method under field conditions is in progress.
Image of publication Laboratory Evaluation of Pressure Differential-based Respirable Dust Detector TubePeer Reviewed Journal Article - January 2000
Download PDF Document (0.69 MB)
NIOSHTIC2 Number: 20022682
Appl Occup Env Hyg 2000 Jan 15(1):158-164
See Also
Adaptation of Wearable Respirable Dust Monitor Prototypes for use in Underground Coal Mines
Determining the Spatial Variability of Personal Sampler Inlet Locations
Dust Considerations When Using Belt Entry Air to Ventilate Work Areas
Enhanced Utilization of Personal Dust Monitor Feedback
Equivalency of a Personal Dust Monitor to the Current United States Coal Mine Respirable Dust Sampler
Laboratory and Field Performance of a Continuously Measuring Personal Respirable Dust Monitor
Laboratory Testing To Quantify Dust Entrainment During Shield Advance
New Tools To Monitor Personal Exposure To Respirable Coal Mine Dust
Next Generation Continuous Personal Dust Monitor (CPDM)
Respirable Dust Measured Downwind During Rock Dust Application
Page last reviewed: September 21, 2012
Page last updated: September 21, 2012
Content source: National Institute for Occupational Safety and Health, Mining Program
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