TOLERANCE TIMES FOR CONTINUOUS WORK TASKS WHILE WEARING NBC PROTECTIVE CLOTHING IN WARM AND HOT ENVIRONMENTS AND THE STRATEGY OF IMPLEMENTING REST SCHEDULES

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Authors
  1. McLellan, T.M.
Corporate Authors
Defence and Civil Inst of Environmental Medicine, Downsview ONT (CAN)
Abstract
Canadian Forces personnel must be albe to sustain operatons in an environment contaminated with NBC agents. However, because of the thickness and low vapour permeability of the protective clothing ensemble, there is considerable heat strain associated with waring full NBC protection in warm and hot environments. The report provides and updated analysis of the relationship between tolerance time while wearing the NBC clothing and the work intensity at ambient temperatures of 30C and 40C. The mathematical function which is used to described this relationship defines an infinite tolerance time at a specific work intensity. If this intensity is above the oxygen consumption associated with resting conditions, then implementing a specific work and rest schedule will increase the total tolerance time and the total work accomplished compared with a continuous work effort. Alternatively, if the work intensity associated with an inifinite tolerance time is below the value defined for a resting individual, then implementing work and rest, schedules may not be the correct choice. Although tolerance time will be increased, the total amount of work that can be accomplished will decrease.
Keywords
NBC protective clothing;Work intensity
Report Number
DCIEM-94-62 —
Date of publication
01 Oct 1994
Number of Pages
16
DSTKIM No
95-01579
CANDIS No
150661
Format(s):
Hardcopy;Document Image stored on Optical Disk

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