Comparison of Cold Weather Clothing Biophysical Properties – US Army, Canadian Department of National Defence, and Norwegian Military

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Authors
  1. Potter, A.W.
  2. Gonzalez, J.A.
  3. Carter, A.J.
  4. Looney, D.P.
  5. Rioux, T.P.
  6. Srinivasan, S.
  7. Sullivan-Kwantes, W.
  8. Xu, X.
Corporate Authors
Defence Research and Development Canada, Toronto Research Centre , Toronto ON (CAN);Army Research Inst of Environmental Medicine, Natick MA (US)
Abstract
This report provides quantitative biophysical assessments of current cold weather clothing ensembles used by the US Army, the Canadian Department of National Defence, and the Norwegian military. Standard tests for the thermal and evaporative resistances (Rt and Ret) were conducted for 22 military cold weather ensembles (9 United States (US), 8 Canadian (CA), and 5 Norwegian (N)) within climate controlled environmental chambers. Total thermal resistance (insulation) in clo units, the vapor permeability index (im), and the evaporative potential (im/clo) were calculated from Rt and Ret measurements. Simple comparisons of the measured values for each of the ensembles was made as well as predicted performances based on modeling of insulation required to maintain safe exposure times.
Keywords
Environmental Physiology (Cold Heat, Acceleration, Hypoxia, Exercise);Environmental/Thermal Protection;Thermal Manikins;Biophysics;Protective Clothing;Cold Injury;Predictive Modeling;Thermoregulation
Report Number
DRDC-RDDC-2018-N071 — External Literature
Date of publication
01 May 2018
Number of Pages
45
DSTKIM No
CA045985
CANDIS No
806455
Format(s):
Electronic Document(PDF)

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