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Suggested Frequency of Physiological Monitoring for Fit and Acclimatized <br /> Workers <br /> Adjusted Normal Work Impermeable <br /> Temperatures Ensemble Ensemble <br /> 90 deg F After each 45 min After each 15 min <br /> or > of work of work <br /> 87 .5-90 After each 60 min After each 30 min <br /> deg F of work of work <br /> 82 .5 - 87 .5 After each 90 min After each 60 min <br /> deg F of work of work <br /> 77 .5 - 82.5 After each 120 min After each 90 min <br /> deg F of work of work <br /> 72.5 - 77 .5 After each 150 min After each 120 min <br /> deg F of work of work <br /> *Adjusted Temperature=taF + (13 x %Sunshine) where (ta) is the ambient <br /> temperature measured with a glass thermometer. %Sunshine is measured by <br /> estimation of total available sunshine (100% sunshine =0% cloud cover <br /> and 0% sunshine = 100% cloud cover) . <br /> COLD STRESS : <br /> The cold stress TLV's are intended to protect workers from the severest <br /> effects to cold stress (hypothermia) and cold injury and to describe <br /> exposures to cold working conditions under which it is believed that <br /> nearly all workers can by repeatedly exposed without adverse health <br /> effects . <br /> The objective in prevention of cold stress is to protect all parts of <br /> the body with emphasis on hands, feet and head from cold injury. The <br /> early warning signs of cold stress are: <br /> • Pain in the fingers and toes <br /> • Severe shivering <br /> • Excessive fatigue or drowsiness <br /> Employees shall be monitored visually and questioned as to their <br /> condition. If signs of prolonged shivering exist, the employee (s) shall <br /> be removed from the work operation and allowed to warm themselves . <br /> Adequate insulating clothing (coveralls) shall be provided if work is <br /> performed in air temperatures below 40 degrees F. <br /> 23 <br /> Site safety i Health Plan Rev./1.0 <br /> October 20, 1997 <br />