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Category > Chemistry Posted 19 Jun 2017 My Price 12.00

SFTY 355 Industrial Hygiene and Toxicology

SFTY 355 Industrial Hygiene and Toxicology
HOMEWORK #6
Name _ Assignment Grade: 100%__________________________________ 1. (24 pts) When workers are at risk for cold stress, describe at least 3 general and three
specific controls that should be implemented
General Controls: Training Hygiene Practices Medical Surveillance
Specific Controls: Warming Shelters Work/Rest Cycles Wind Barriers
2. (8 pts) What are two physiological responses to cold stress?
1. Conservation of body heat through reduced blood circulation
2. Shivering to increase the metabolic rate
3. (16 pts) Describe at least 4 work practice controls that may be used for working in a hot
environment.
1.
2.
3.
4. Shorten duration of each exposure
Schedule hot jobs during the cooler part of the day
Self-limitation
Air conditioned recovery area 4. (12 pts) What are the three main characteristics of clothing that affect thermal balance?
1. Insulation
2. Permeability
3. Ventilation 5. Complete the table (40 pts)
Globe temp (F) 94 89 X X Dry bulb temp (F) 91 X 98 94 Natural wet bulb temp (F) 74 86 X X Botsball (F) X X 87 92 WBGT (F) 80
26.7 86.9
30.5 90.5
32.5 93.7
34.3 Cont. 75/25 X X 20/80** X X X WBGT (C)
Approximate ACGIH
work/rest regimen for
acclimatized worker
performing light work
Approximate ACGIH
work/rest regimen for unacclimatized worker
performing moderate work **I was unable to find specific information on un-acclimatized
workers, so I went with the recommendation of the acclimatization
process for a new worker on the first day which is 20% work.

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SuperTutor
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Status NEW Posted 19 Jun 2017 03:06 AM My Price 12.00

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