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Dynamic Particle Size Measurement of Coal Dust.

Authors
Marple-VA; Rubow-KL
Source
NTIS: PB 285 096 Available for Reference At Bureau Libraries :155 pages
Link
NIOSHTIC No.
10000065
Abstract
This research evaluated methods and techniques by which the size distribution and concentration of mining-related dusts could be measured. One result was the development of a portable, battery- operated, optical particle counter-multichannel analyzer system that could be used to determine the size distribution and concentration of mining aerosols. A calibration technique was developed that relates the output of the optical particle counter to the penetration of the particles through an impactor. This results in a calibration curve in terms of the aerodynamic or stokes' diameter of the aerosol particles. Another aspect was the calibration and evaluation of respirable dust monitors. The results of the evaluation showed that the instruments were within +/-25 pct of the true mass concentration up to about 15 mg/m, if the dust particles were in a size range from about 0.7 to 10 um aerodynamic diameter.
Publication Date
19770101
Document Type
CP; Final Contract Report;
Fiscal Year
1977
NTIS Accession No.
PB-285096
NTIS Price
A09
Identifying No.
OFR 93-78
NIOSH Division
TCRC;
Source Name
NTIS: PB 285 096 Available for Reference At Bureau Libraries
State
MN;
Performing Organization
University of Minnesota
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