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3.2.1.6 Heat Stress Reduction <br /> The following recommendations will help reduce heat stress. Their applicability is <br /> dependent on evaluating the conditions particular to a specific project. <br /> • Provide plenty of liquids to replace loss of body fluids. Appropriate liquids should <br /> consist of juices,juice products, and water. <br /> • Establish a work schedule that will provide sufficient rest periods for cooling down. <br /> As the temperature increases, more frequent and longer rest periods are required. <br /> • Since utilizing an oral thermometer introduces a risk of exposure to site contaminants <br /> through ingestion, pulse-rate monitoring will be used. Heart rates should be <br /> measured periodically by taking 30 second pulse rates at the end of a work period (i.e. <br /> beginning of rest period). If the heart rate exceeds 110 beats/min. at the beginning of <br /> the rest period, shorten the next work period by 1/3, keeping the rest period the same. <br /> • If the heart rate still exceeds 110 beats/min. at the next rest period, shorten the work <br /> cycle by 1/3. The following table has been developed for frequency of monitoring for <br /> acclimatized workers. <br /> Adi. Term) ff) Normal Work Clothes Impermeable Clothes <br /> 90.0 after @ 45 min. work after @ 15 min. work <br /> 87.5-90.0 after @ 60 min. work after @ 30 min. work <br /> 82.5-87.5 after @ 90 min. work after @ 60 min. work <br /> 70.0-82.5 after @ 120 min. work after @ 90 min. work <br /> 72.5-77.5 after @ 150 min. work after @ 120 min. work <br /> NOTE: Adjusted temperature must be calculated to utilize the chart above. Temperature is <br /> adjusted for solar loading via the following formula: <br /> 7 <br />