South Africa Physical Agents Regulations 2024 thermal stress control framework for all workplaces.
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No standalone formula is published for this standard; see programmable logic and parameters below.
Governing metric: WBGT action level / occupational exposure limit
Programmable logic: Control overlay that classifies a 1-hour time-weighted WBGT below action level, at or above the 27°C action level, or at or above the 30°C OEL. It surfaces required risk assessment, monitoring, control hierarchy, medical surveillance, training, and heat-health controls without inventing a numeric work/rest schedule.
This standard does not take WBGT as a required input, and publishes no standalone numeric parameter table here; see the governing metric and programmable logic above, and the primary source below.
Required inputs: none
Optional inputs: airTempC, wbgtC, outdoor