Thermal Work Limit model used in mining and heavy industry to estimate sustainable metabolic rate.
Open Australia Thermal Work Limit (TWL) in the interactive Guidance Wiki →
No standalone formula is published for this standard; see programmable logic and parameters below.
| TWL (W/m²) | Result |
|---|---|
| 80 | Stop work |
| 90 | Stop work |
| 100 | Stop work |
| 110 | Stop work |
| 120 | 45 / 15 min work/rest per hr |
| 130 | 45 / 15 min work/rest per hr |
| 140 | 60 / 0 min work/rest per hr |
| 150 | 60 / 0 min work/rest per hr |
| 160 | 60 / 0 min work/rest per hr |
| 170 | 60 / 0 min work/rest per hr |
| 180 | 60 / 0 min work/rest per hr |
| 190 | 60 / 0 min work/rest per hr |
| 200 | 60 / 0 min work/rest per hr |
| 210 | 60 / 0 min work/rest per hr |
| 220 | 60 / 0 min work/rest per hr |
| 230 | 60 / 0 min work/rest per hr |
| 240 | 60 / 0 min work/rest per hr |
| 250 | 60 / 0 min work/rest per hr |
| 260 | 60 / 0 min work/rest per hr |
Required inputs: twlWm2
Optional inputs: airTempC, wetBulbC, globeTempC, windSpeedMS, atmPressurehPa
This standard was added to the calculator.
Get notified when Australia Thermal Work Limit (TWL) changes — threshold changes, scope and legal-status changes, additions and removals. Changes that permit more heat exposure than before are labelled as such.
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