| Temperature and humidity within the clothing microenvironment. | |
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MedLine Citation:
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PMID: 1567319 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The present study investigates clothing microenvironment conditions that may develop during prolonged exposure of workers to a hot environment. Five subjects were exposed to a linear increase in ambient temperature from 20-40 degrees C over a 90-min period, and then remained at 40 degrees C for an additional 90 min. During the exposures, subjects were clad in four types of helicopter personnel suits (Gore-Tex, Cotton Ventile, Nomex/Insulite, and Nomex/Neoprene), incorporating both dry-suit and wet-suit designs. Continuous assessment was made of skin temperature, rectal temperature, and of microenvironment temperature, relative humidity, and vapor pressure (T mu, RH mu, and VP mu) 8 mm from the surface of the skin. Results indicate that although microenvironment temperatures were similar among suits and slightly lower than that of the environment, the RH mu and VP mu were much greater than those of the ambient air. The Nomex/Insulite and Nomex/Neoprene suits showed the highest VP mu, of which only the Nomex/Insulite resulted in significantly greater increases in rectal temperature, likely due to complete covering of the body with the impermeable insulite component. The present study demonstrates the need to discern between the ambient conditions and the conditions encountered next to the skin when protective clothing is worn. |
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Authors:
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P J Sullivan; I B Mekjavić |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Aviation, space, and environmental medicine Volume: 63 ISSN: 0095-6562 ISO Abbreviation: Aviat Space Environ Med Publication Date: 1992 Mar |
Date Detail:
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Created Date: 1992-05-21 Completed Date: 1992-05-21 Revised Date: 2007-11-15 |
Medline Journal Info:
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Nlm Unique ID: 7501714 Medline TA: Aviat Space Environ Med Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 186-92 Citation Subset: IM; S |
Affiliation:
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Canadian Astronaut Program Office, Canadian Space Agency, Rockliffe Base, Ottawa, Ontario. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Adult Aerospace Medicine Aircraft Body Temperature* Evaluation Studies as Topic Gossypium / standards Heat Exhaustion / diagnosis, physiopathology* Humans Humidity* Male Neoprene / standards Polytetrafluoroethylene / standards Protective Clothing / standards* Temperature* |
| Chemical | |
Reg. No./Substance:
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9002-84-0/Polytetrafluoroethylene; 9010-98-4/Neoprene |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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