South Korea historical KOSHA WBGT-based work/rest table (superseded by the 2025 MoEL apparent-temperature rule).
Browse all standards → · Evaluate every standard at once in the calculator →
The drag-to-check calculator needs JavaScript. Every value it can show is a row of the table below, which is computed by the same engine.
No standalone formula is published for this standard; see programmable logic and parameters below.
| WBGT (°C) | Light 180 W | Moderate 300 W | Heavy 415 W | Very heavy 520 W |
|---|---|---|---|---|
| 24 | 60 / 0 min work/rest per hr | 60 / 0 min work/rest per hr | 60 / 0 min work/rest per hr | 60 / 0 min work/rest per hr |
| 25 | 60 / 0 min work/rest per hr | 60 / 0 min work/rest per hr | 60 / 0 min work/rest per hr | 60 / 0 min work/rest per hr |
| 26 | 60 / 0 min work/rest per hr | 60 / 0 min work/rest per hr | 30 / 30 min work/rest per hr | 30 / 30 min work/rest per hr |
| 27 | 60 / 0 min work/rest per hr | 45 / 15 min work/rest per hr | 30 / 30 min work/rest per hr | 30 / 30 min work/rest per hr |
| 28 | 60 / 0 min work/rest per hr | 45 / 15 min work/rest per hr | 15 / 45 min work/rest per hr | 15 / 45 min work/rest per hr |
| 29 | 60 / 0 min work/rest per hr | 30 / 30 min work/rest per hr | 15 / 45 min work/rest per hr | 15 / 45 min work/rest per hr |
| 30 | 60 / 0 min work/rest per hr | 15 / 45 min work/rest per hr | 15 / 45 min work/rest per hr | 15 / 45 min work/rest per hr |
| 31 | 30 / 30 min work/rest per hr | 15 / 45 min work/rest per hr | Stop work | Stop work |
| 32 | 15 / 45 min work/rest per hr | Stop work | Stop work | Stop work |
| 33 | Stop work | Stop work | Stop work | Stop work |
| 34 | Stop work | Stop work | Stop work | Stop work |
| 35 | Stop work | Stop work | Stop work | Stop work |
| 36 | Stop work | Stop work | Stop work | Stop work |
This standard's declared inputs do not include acclimatization status, so results do not vary by it.
Required inputs: wbgtC, workload
Optional inputs: none
This standard was added to the calculator.
Get notified when South Korea KOSHA GUIDE W-12-2017 WBGT Table changes — threshold changes, scope and legal-status changes, additions and removals. Changes that permit more heat exposure than before are labelled as such.
Paste this address into any feed reader:
https://heatrules.com/standards/south_korea_kosha_wbgt/feed.xml
Open the feed · All update feeds · No account or email address is needed; the site keeps no subscriber list.
If a threshold, trigger, exemption, date or duty here disagrees with the governing text, tell us and point at the section. The form arrives with this standard already named, and a correction is checked against the same primary document it was encoded from.