Table IX-2. Occupational exposure limits for cold stress (Maximal work duration in a 4-hour shift).
| Temperature | Workload | Maximal work duration (min) |
|---|---|---|
| −10~–25°C | Light work (RMR~2) | ~ 50 |
| Moderate work (RMR~3) | ~ 60 | |
| −26~–40°C | Light work (RMR~2) | ~ 30 |
| Moderate work (RMR~3) | ~ 45 | |
| −41~–55°C | Light work (RMR~2) | ~ 20 |
| Moderate work (RMR~3) | ~ 30 |