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jddwba� CDIM Corporate Safety Program I� HSP-10. Heat and Cold Stress Management ENGINEERING Rev. 0 5/21/2020 • Cooling techniques will be used. Consideration will be given to providing periodic field showers in extremely hot environments. • When possible, activities will be rescheduled to a time when heat index is lower. 4.1.4 Very High to Extreme Risk—Temperatures greater than 115 degrees F: • Non-essential activity will be rescheduled for days with a reduced heat index or to a time when the heat index is lower. • Essential work tasks will be moved to the coolest part of the work shift; earlier start times, split shifts, or evening and night shifts will be considered. • Strenuous work tasks and those requiring the use of heavy or non-breathable clothing or impermeable chemical protective clothing should not be conducted when the heat index is at or above 115°F. • Workers will be alerted of extreme heat hazards. • Water drinking schedule will be established and enforced. • Stop work if essential control methods are inadequate or unavailable 4.1.5 Heat Stress Prevention Monitoring Heat stress monitoring will commence when the ambient temperature exceeds 70 degrees F and personnel are wearing semi-permeable or impermeable encapsulating ensembles (including Tyvek coveralls); or heavy, non-breathable, or specialized protective clothing that may increase the risk of heat stress, or are conducting strenuous work (greater than 500 kcal/hour) regardless of the type of clothing. To determine if work is considered strenuous work, see Attachment 8.1. Monitoring will be conducted regardless of type of clothing work or estimated metabolic output when ambient temperatures reach 115 degrees F. Table 6.1 below provides guidelines for conducting the monitoring of pulse rate and/or oral temperature at varying temperatures for workers in normal work clothing and for those in impermeable PPE. Table 5-1. Suggested Frequency of Physiological Monitoring for Hot Weather Conditions' ADJUSTED TEMPERATURESZ NORMAL WORK ENSEMBLE IMPERMEABLE ENSEMBLE 900 F (32.2°C)or above After each 45 minutes of work After each 15 minutes of work 87.5° - 90° F (30.8° -32.2°C) After each 60 minutes of work After each 30 minutes of work 82.5° - 87.5°F (28.10 -30.8°C) After each 90 minutes of work After each 60 minutes of work 77.5° - 82.5°F (25.30 -28.1°C) After each 120 minutes of work After each 90 minutes of work 72.5° - 77.5° F (22.5° -25.3°C) After each 150 minutes of work After each 120 minutes of work Notes: 1. Assumes work levels of 250 kilocalories/hour(e.g., a moderate work level). Consider increasing the frequency for heavy work rates. 2. Adjusted Air Temperature: Calculate the adjusted air temperature (ta adj) by using this equation: to adj OF = to OF + (13 x % sunshine). Measure the air temperature (ta)with a standard thermometer, with the bulb shielded from radiant heat. Estimate the percent sunshine by judging what percent time the sun is Page 4 of 9