NIOSHTIC-2 Publications Search

Precision of Personal Sampling of Respirable Dust in Coal Mines.

Authors
Breslin-JA; Page-SJ; Jankowski-RA
Source
MISSING :12 pages
Link
NIOSHTIC No.
10002702
Abstract
The Bureau of Mines measured respirable dust in coal mines by means of multiple dust samplers worn by persons moving about the mines. The measurements were made primarily to evaluate the effectiveness of certain dust-control techniques; however, for this report, the data have been analyzed to determine the precision of the personal dust-sampling measurements. A total of 68 sets of measurements were available from multiple personal samplers. The measured dust masses were less than 1.0 Mg because the sampling times were short. The coefficient of variation calculated from these data was 18.5 pct, compared with coefficients of variation ranging from about 10 to 30 pct, which were calculated from the most precise and extensive data available for fixed-point dust measurements made in coal mines. From this comparison, it is concluded that dust samplers worn by personnel are as precise as fixed-point samplers in measuring respirable coal dust; the wearing of the samplers by someone moving about a mine does not contribute significantly to the variation in measurements made with these instruments.
Publication Date
19830101
Document Type
IH; Report of Investigations
Fiscal Year
1983
Identifying No.
RI 8740
NIOSH Division
PRC;
Source Name
MISSING
Page last reviewed: March 11, 2019
Content source: National Institute for Occupational Safety and Health Education and Information Division