WBGT — Outdoor (with solar load)

WBGT — Outdoor (with solar load)

HS-01
ASPCSPFoundational

Formula
WBGT = 0.7WB + 0.2GT + 0.1DB
When to Use

Calculate heat stress index for workers exposed to direct sunlight outdoors.

Symbol Legend
SymbolMeaningUnitNote
WBGTWet Bulb Globe Temperature Index°CCompare to ACGIH WBGT limits
WBNatural Wet Bulb Temperature°CWeighted 70%
GTGlobe Temperature°CWeighted 20%
DBDry Bulb Temperature°CWeighted 10% — used only with solar load

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