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^� ES ENGINEERING-SCIENCE <br /> TABLE 2.1 <br /> SUGGES'T'ED FREQUENCY OF PHYSIOLOGICAL MONITORING <br /> FOR FIT AND ACCLIMAnZED WORKERSa <br /> Adjusted Tctaperatureb Normal Work Eosemblec <br /> Impermeable Ensemble <br /> 900E(=—C)or above After each 45 minutes <br /> After each 15 minutes <br /> of work of work <br /> ' 87.50•90°F(30.8°-32.20C <br /> After each 60 minutes Aper each 3o minutes <br /> of work of work <br /> 82.5°-875'F(28.I°-30.8°C) <br /> Aber each 60 minutes <br /> of work <br /> ^= 77.5°-82.50F(253°-28.1°C) f <br /> After each 90 minutes <br /> • of work <br /> 72-50-77.50E(22.S0.253°C) ' <br /> After each 120 minutes <br /> of work <br /> a For work levels of 250 kilocalories/hour. <br /> b Calculate!.he adjusted air temperature(ta adj) by using this etluatiea to adj OF = toF <br /> 70 <br /> sunshine}, Measure air temperature(ta)with a standard trcrctu• - o (13 x <br /> , m glass thermometer,with the bulb <br /> shielded from radiant heat, <br /> covered by clouds that Estimate percent sunshine by judging wlsat percent time the sun is not <br /> are thick enough to produce a shadow. (too percent sunshine w no cloud cover <br /> + and a sharp,distinct shadow;o percent sunshine = no shadows.) <br /> c A normal work casemble consists of cotton coveralls or other cotton thing ctowith long sleeves and <br /> s pants. <br /> LMC/2211.621/0004 <br />