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Methods to improve the accuracy of coal mine dust sampling.
Kissell FN; Ruggieri SK; Jankowski RA
American Industrial Hygiene Association Conference, May 19-24, 1985, Las Vegas, Nevada. 1985 May; :212-218
The development of control technology for reducing respirable dust in coal mines has been hindered by the difficulties involved in making accurate dust measurements. Recent Bureau of Mines research has provided new insights into the causes of measurement errors, and how to minimize them. Improving the accuracy of coal mine dust sampling involves five basic steps: 1) use of modern equipment, such as flowregulated gravimetric pumps and instantaneous dust monitors; 2) avoiding, to the extent possible, sampling locations with a steep concentration gradient; 3) ensuring that the airstream being sampled is representative of the source; 4) alternating the operation (on vs. off) of the control technology as frequently as possible to minimize dust level changes due to changes in material being cut or production; and 5) pinpointing dust sources to ensure that the dust being measured relates to the control being tested.
Respirable-dust; Measurement-equipment; Coal-dust; Coal-miners; Coal-mining; Sampling; Sampling-equipment; Sampling-methods; Air-flow; Air-quality-measurement; Air-sampling; Gravimetric-analysis; Gravimetry; Exposure-levels; Control-technology; Air-monitoring
OP; Conference/Symposia Proceedings
American Industrial Hygiene Association Conference, May 19-24, 1985, Las Vegas, Nevada
NV; PA; MA
Page last reviewed: March 11, 2019
Content source: National Institute for Occupational Safety and Health Education and Information Division