|Document ID (ISN)||56934|
|ISSN - Serial title
||0002-8894 - American Industrial Hygiene Association Journal
|Convention or series no.
||White M.K., Glenn S.P., Hudnall J., Rice C., Clark S.
||The effectiveness of ice- and Freon-based personal cooling systems during work in fully encapsulating suits in the heat
||Mar. 1991, Vol.52, No.3, p.127-135. Illus. 24 ref.
||The use of cooling garments in conjunction with fully encapsulating suits can reduce heat strain for workers in hot environments. Ice- and Freon-based cooling garments were examined during heat exercises in persons wearing a U.S. Coast Guard chemical response suit (CRS). Responses of 9 healthy men were measured during moderate exercise at 30% of their maximal oxygen consumption in an environmental chamber maintained at 33.9░C and 82% relative humidity. The study describes four randomly assigned experimental conditions. The subjects performed repeated rest/work intervals for 45 minutes, followed by a 10 minute recovery period. Physiological responses were measured at 1 minute intervals during the tests. The study results indicate statistically significant reductions in mean skin temperature and heart rate in the trials where the cooling garments were worn. Significant differences were also seen in lower weight loss and shorter rectal temperature recovery time. However, neither cooling system fully demonstrated an advantage over the other.
||protective clothing; heat load; hot workplaces; heat protective clothing; heat; personal protective equipment
||body-core temperature; skin temperature; heart rate monitoring; exercise tests; workload assessment
||D - Periodical articles
|Country / State or Province||USA|
||Heating, ventilation and climate
|Broad subject area(s)
Heat and cold