Ergonomics · 1971 · 14 citations · 0 references
Public HealthKinesiologyErgonomicsOccupational HealthThermal ComfortEnvironmental ErgonomicsHeat StressHeat Stress AssessmentHeat Stress PhysiologyMean Radiant TemperatureOccupational StressLimitsOccupational Heat Exposure AssessmentOutdoor Work ExposureOutdoor Worker Heat ExposureSweat Rate MeasurementSweat Rate VariabilityThermal Load AssessmentThermal Stress Assessment
Abstract Use of the Predicted 4-hour Sweat Rate (P4SR) to determine tolerable limits of heat stress in outdoor work is examined, using data from a training centre near Dar es Salaam, Tanzania. The proportion of days with heat stress exceeding a tolerable limit for 3 hours or more was assessed over a 14-month period, and mean rest allowances calculated. The calculation of maximum energy expenditures within the tolerable limit, and use of ordinary climatic data is considered in order to derive a simple guide to heat stress and rest allowances in outdoor work.