WBGT Adjustment Formula:
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Definition: This calculator adjusts the Wet Bulb Globe Temperature (WBGT) based on clothing type and work rate according to OHCOW (Occupational Health Clinics for Ontario Workers) guidelines.
Purpose: It helps assess heat stress risk more accurately by accounting for factors that affect heat exchange between workers and their environment.
The calculator uses the formula:
Where:
Explanation: The measured WBGT is increased based on clothing insulation and metabolic heat production from work rate.
Details: Proper WBGT adjustment ensures accurate heat stress assessment, helping prevent heat-related illnesses in workers.
Tips: Enter the measured WBGT, select appropriate clothing type and work rate. The calculator will provide the adjusted WBGT value.
Q1: What is WBGT?
A: WBGT is a composite temperature used to estimate the effect of temperature, humidity, wind speed, and radiant heat on humans.
Q2: Why adjust for clothing?
A: Different clothing types affect heat dissipation - more insulating clothing requires greater WBGT adjustment.
Q3: What's the work rate adjustment?
A: Higher work rates generate more metabolic heat, requiring greater WBGT adjustment.
Q4: How do I measure WBGT?
A: Use a proper WBGT meter that measures natural wet bulb, globe, and dry bulb temperatures.
Q5: What are OHCOW guidelines?
A: Occupational Health Clinics for Ontario Workers provide heat stress assessment protocols for workplace safety.