| Standard | Authority | Legal status | Rule type |
|---|---|---|---|
| Vietnam QCVN 26:2016/BYT | Vietnam Ministry of Health | Regulation | Schedule Engine |
Reference conditions: moderate work (300 W), acclimatized worker. WBGT values below are illustrative reference points, not a threshold of any single standard.
| WBGT (°C) | Most protective result |
|---|---|
| 28 | 45 / 15 min work/rest per hr (most protective) |
| 31 | 15 / 45 min work/rest per hr (most protective) |
| 34 | Stop work — At least one applicable standard requires stop work or prohibits continued work. |
This is the single most protective applicable result at each condition (stop-work override, else minimum work / maximum rest minutes) — standards are never averaged. Contributing standard(s) across these conditions: Vietnam QCVN 26:2016/BYT.