Laserfiche WebLink
8.0 HEAT STRESS PREVENTION PROGRAM <br /> (in compliance with 29 CFR 1910.120(h)) <br /> Employees on this site are not exposed to environmental and work conditions such as <br /> temperature, humidity, and use of PPE that could cause either illnesses or injuries <br /> related to heat stress. <br /> Patrick Riggs is responsible for implementing the Heat Stress Prevention Program, <br /> monitoring work area heat conditions and worker physiological parameters, and for <br /> ensuring that employees are trained to recognize the signs and symptoms of heat <br /> stress illnesses or injury and what to do if these occur. <br /> 8.1 Program Implementation Criteria <br /> The Heat Stress Prevention Program is implemented when work area temperatures rise <br /> above 90oF/ 32°C. Criteria for program monitoring and/or implementation are derived <br /> from OSHA Technical Manual, Section 3, and Chapter 4: <br /> OSHA has incorporated much of the American Conference of Governmental Industrial <br /> Hygienists ACGIH) Heat Stress strategy into the Technical Manual. This strategy <br /> recommends a wet bulb globe temperature (WBGT) of 68.5° F as an acceptable <br /> environment for unacclimatized employees to conduct continuous moderate work <br /> wearing water barrier permeable clothing. This value may be used as the criteria for <br /> instituting a heat stress protection program. The WBGT is calculated as follows: <br /> WBGT (indoor/outdoor no solar load)'-- 0.7NWB + 0.3 GT <br /> WBGT (outdoor sour load)=0.7NW + 0.2GT + 0.1 DB <br /> Acronyms in the equations refer to the following: <br /> NWB- Natural Wet Bulb Temperature <br /> GT -Globe Temperature <br /> DB-Dry Bulb <br /> 2. The U.S. EPA's "A Guide to Heat Stress in Agriculture" <br /> The U.S. EPA presents a strategy using temperature, relative humidity, and work load <br /> to calculate an adjusted temperature. This strategy specifies an adjusted temperature <br /> of 750F as appropriate for an acclimatized employee, under the age of 40, wearing <br /> Tyvek®/respirator to conduct a moderate work following a "normal schedule". This <br /> value may be used as the criteria for instituting a heat stress protection program. The <br /> adjusted temperature is calculated as follows: Ta=DB + WC ± RH <br /> Acronyms in the equation refer to the following: <br /> Chapter 8 - 1 <br />