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A personal miner's carbon monoxide alarm.

Authors
Chilton JE; Carpenter CR
Source
Pittsburgh, PA: U.S. Department of the Interior, Bureau of Mines, RI/IC ####, 1989 Jan; :1-12
NIOSHTIC No.
10007356
Abstract
Underground miners may be exposed to hazardous quantities of toxic gases, such as carbon monoxide (co), generated from mine fires or explosions. Every underground miner is required to carry a filter self-rescuer (fsr), which when operated will remove CO from the miner's breathing air. In addition, every underground miner must have a self-contained self-rescuer (scsr) near the worksite that will supply breathing oxygen. In many situations, miners do not know when to don either rescuer since they do not know if there is a fire in the mine, nor do they carry instrumentation necessary for the detection of the toxic, colorless, and odorless fire product carbon monoxide If each miner carried a personal CO alarm, which would respond to high concentrations of CO, the miner would then be alerted when to don either the fsr or scsr and exit the mine. A prototype personal miner's CO alarm called pemcoal was developed by the U.S. Bureau of Mines. The pemcoal unit is small enough to be carried on a miner's belt, has a flash lamp visual alarm, requires no calibration for use, and uses a chemical sensor that changes color by reaction with trace quantities of carbon monoxide The chemical sensor was tested at concentrations of CO from 10 to 1,000 ppm, at temperatures from 5 deg to 40 deg c, and with several potential mine gas interferents. The pemcoal alarm times were sufficiently fast to warn miners before they are exposed to hazardous quantities of carbon monoxide
Keywords
Warning systems; Coal mines; Carbon monoxide poisoning; Fire alarm systems; Mine fires; Mine gases; Carbon compounds; Safety engineering; Accident prevention
Publication Date
19890101
Document Type
IH; Information Circular
Fiscal Year
1989
NTIS Accession No.
PB90-171554
Identifying No.
IC-9233
NIOSH Division
PRC
Source Name
Pittsburgh, PA: U.S. Department of the Interior, Bureau of Mines, IC 9233
State
PA
Page last reviewed: September 2, 2020
Content source: National Institute for Occupational Safety and Health Education and Information Division