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Prediction of Duration Limited Exposure for Participants Wearing Chemical Protective Clothing in the Cold

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Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
The suitability of the IREQ (insulation required) index for predicting the thermal responses of 6 participants wearing chemical protective clothing was tested during exercise at -20 and -25 °C. IREQ was used to calculate duration limited exposure (DLE). Measured DLE correlated (r= .899, p < .001) with the predicted DLE. In exposures exceeding 40 min, however, the predicted DLE tended to be 10-20 min too short compared to the measured one. During short exposures the prediction was 5-20 min too long. The results show that IREQ overestimated the cold strain in participants wearing chemical protective clothing during cold exposures longer than 40 min. Nevertheless, predicted DLE never exceeded measured times and thus the prediction was always safe from the occupational point of view.
Rocznik
Strony
451--461
Opis fizyczny
Bibliogr. 18 poz., tab., wykr.
Twórcy
autor
  • Oulu Regional Institute of Occupational Health, Finland
autor
  • Oulu Regional Institute of Occupational Health, Finland
autor
  • National Institute for Working Life, Solna, Sweden
Bibliografia
  • 1. Aptcl, M. (1988). Comparison between required clothing insulation and that actually worn by workers exposed to artificial cold. Applied Ergonomics, 19, 301-305.
  • 2. Armstrong, L.E., Szlyk, P.C., Sils, I.V., Dc Luca, J.P., O'Brien, C, & Hubbard, R.W. (1991). Prediction of the exercisc-hcat tolerance of soldiers wearing protective overgarments. Aviation, Space, and Environmental Medicine, 62, 673-677.
  • 3. Borg, G. (1970). Perceived exertion as an indicator of somatic stress. Scandinavian Journal of Rehabilitation Medicine, 2, 92-98.
  • 4. Cortili, C, Mognoni, P., & Saibcne, F. (1996). Work tolerance and physiological responses to thermal environment wearing protective NBC clothing. Ergonomics, 4, 620-633.
  • 5. Havenilh, G., Hcus, R., & Lotcns, W.A. (1990). Resultant clothing insulation: a function on body movement, posture, wind, clothing fit and ensemble thickness. Ergonomics, 33, 67-84.
  • 6. Holmcr, I. (1984). Required clothing insulation (IREQ) as an analytical index of cold stress. Ashrae Transactions, 90(6), 1116-1128 .
  • 7. International Organization for Standardization (ISO). (1995). Ergonomics of the thermal environment-Assessment of the influence of the thermal environment using subjective judgement scales (Standard No. ISO 10551:1995). Geneva, Switzerland: Author.
  • 8. International Organization for Standardization (ISO). (1999). Ergonomics of the thermal environment-Cold environments. Determination of required clothing insulation, IREQ (Standard No. ISO/TR 11079:1999). Geneva, Switzerland: Author.
  • 9. Kuklane, K., Holmér, I., & Mcinandcr, H. (1998). Thermal properties of garments measured with a heated sweating mannequin. In K. Kuklane & I. Holmcr (Eds.), Problems with cold work. Proceedings from an international symposium held in Stockholm, Sweden November 16-20, 1997 (Arbctc och Hiilsa 1998:18, pp. 79-81). Stockholm, Sweden: National Institute for Working Life.
  • 10. McLcllan, T.M., Jacobs, I., & Bain, J.B. (1993). Influence of temperature and metabolic rate on work tolerance with Canadian Forces NBC clothing. Aviation, Space, and Environmental Medicine. 64. 587-594.
  • 11. Mitchell, D., & Wynclham, C.H. (1969). Comparison of weighting formulas for calculating mean skin temperature. Journal of Applied Physiology. 26, 616-622.
  • 12. Nielsen, R., Bcrglund, L.G., Gwosdow, A.R., & DuBois, A.B. (1987). Thermal sensation of the body as influenced by the thermal microclimate in a face mask. Ergonomics, 30, 1689-1703.
  • 13. O'Lcary, C, & Parsons, K.C. (1994). The role of the IREQ index in the design of working practices for cold environments. Annals of Occupational Hygiene, 38, 705-719.
  • 14. Rissancn, S., & Rintamiiki, H. (1997). Thermal responses and physiological strain in men wearing impermeable and semi permeable protective clothing in the cold. Ergonomics, 40, 141-150.
  • 15. Romct, T.T., Prim, J., Allen, C, Shephard, R.J., & Goodc, R.C. (1988). The effects of breathing warm air during cold exposure. Arctic Medical Research, 47(Suppl. 1), 272-276.
  • 16. Siple, P.A., & Passel, C.F. (1945). Measurements of dry atmospheric cooling in subfrcczing temperatures. Proceedings of American Philosophic Society, 89, 177-199.
  • 17. Toner, M.M., & McArdle, W.D. (1988). Physiological adjustments of man to the cold. In K.B. Pandolf, M.N. Sawka, & R.R. Gonzalez (Eds.), Human performance physiology and environmental medicine at terrestial extremes (pp. 361-399). Indianapolis, IN, USA: Benchmark Press.
  • 18. Weir, J.B. dc V. (1949). New methods for calculating metabolic rate with special reference to protein metabolism. Journal of Applied Physiology, 109, 1-9.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-fc4e783f-f53b-452a-9c5c-e543f82a8266
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