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Design specifications for respiratory breathing devices for firefighters.

Authors
Burgess-WA; Sidor-R; Peterson-N; Lynch-JJ; Buchanan-P; Clougherty-E
Source
NIOSH 1975 Sep; :1-79
Link
NIOSHTIC No.
00051753
Abstract
The desired protective factor for self-contained breathing apparatus used in the fire service is proposed at 100 based on a series of tests with a personal air sampler which revealed maximum air concentrations of carbon-monoxide (630080) of approximately 20,000 ppm during fire fighting episodes. A series of 74 incidents were studied using a combustible gas detector modified to be specific for carbon-monoxide. The data are recorded on a cassette recorder using a voltage to frequency converter. A study of the respiratory minute volume during active work while wearing open-circuit, self-contained breathing apparatus indicated a median value of 60 liters per minute and 70 liters for the 80 percentile group. If the device is to have a service life of 30 minutes, the stored air capacity must be 1800 liters, and 2100 liters for the median and 80 percentile values respectively.
Keywords
NIOSH-Contract; Contract-099-72-0021; Toxic-gases; Measurement-instrumentation; Air-contamination; Respiratory-protective-equipment; Firemen; Fire-fighting
CAS No.
630-08-0
Publication Date
19750901
Document Type
Numbered Publication
Funding Type
Contract
Fiscal Year
1975
NTIS Accession No.
PB-267463
NTIS Price
A06
Identifying No.
(NIOSH) 76-121; Contract-099-72-0021
Source Name
National Institute for Occupational Safety and Health
State
OH
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