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The precision of coal mine dust sampling.

Authors
NIOSH
Source
NIOSH 1984 Jul; :1-71
Link
NIOSHTIC No.
20000741
Abstract
The precision of coal mine dust sampling was evaluated. Data was obtained from all relevant literature and unpublished studies conducted by the Mine Safety and Health Administration (MSHA), NIOSH, and the Bureau of Mines. Coefficients of variation were determined. Coefficients of variation as a function of error source were analyzed using data obtained by routine field sampling by the dust division of MSHA. The contribution of weighing errors to the coefficient of variation increased as sample size decreased. The authors conclude that coal mine dust concentration measurements made in the field by trained personnel have a precision of approximately 20 percent. Most of the inaccuracy results from random errors in sampling.
Keywords
Industrial-hygiene; Coal-mining; Coal-dust; Pulmonary-system-disorders; Sampling; Environmental-surveys; Indoor-air-pollution; Indoor-environmental-quality
Publication Date
19840701
Document Type
Other
Fiscal Year
1984
NTIS Accession No.
PB85-220721
NTIS Price
A04
NIOSH Division
DSR
Source Name
National Institute for Occupational Safety and Health
State
WV
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