Malaysia workplace heat stress guideline using ACGIH-style Action Limit and TLV decisions.
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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 | 45 / 15 min work/rest per hr | 30 / 30 min work/rest per hr |
| 25 | 60 / 0 min work/rest per hr | 60 / 0 min work/rest per hr | 45 / 15 min work/rest per hr | 30 / 30 min work/rest per hr |
| 26 | 60 / 0 min work/rest per hr | 60 / 0 min work/rest per hr | 45 / 15 min work/rest per hr | 30 / 30 min work/rest per hr |
| 27 | 60 / 0 min work/rest per hr | 60 / 0 min work/rest per hr | 45 / 15 min work/rest per hr | 30 / 30 min work/rest per hr |
| 28 | 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 |
| 29 | 60 / 0 min work/rest per hr | 45 / 15 min work/rest per hr | 30 / 30 min work/rest per hr | 15 / 45 min work/rest per hr |
| 30 | 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 |
| 31 | 60 / 0 min work/rest per hr | 15 / 45 min work/rest per hr | 0 / 60 min work/rest per hr | 0 / 60 min work/rest per hr |
| 32 | 30 / 30 min work/rest per hr | 0 / 60 min work/rest per hr | 0 / 60 min work/rest per hr | 0 / 60 min work/rest per hr |
| 33 | 0 / 60 min work/rest per hr | 0 / 60 min work/rest per hr | 0 / 60 min work/rest per hr | 0 / 60 min work/rest per hr |
| 34 | 0 / 60 min work/rest per hr | 0 / 60 min work/rest per hr | 0 / 60 min work/rest per hr | 0 / 60 min work/rest per hr |
| 35 | 0 / 60 min work/rest per hr | 0 / 60 min work/rest per hr | 0 / 60 min work/rest per hr | 0 / 60 min work/rest per hr |
| 36 | 0 / 60 min work/rest per hr | 0 / 60 min work/rest per hr | 0 / 60 min work/rest per hr | 0 / 60 min work/rest per hr |
| 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 | 45 / 15 min work/rest per hr | 30 / 30 min work/rest per hr |
| 25 | 60 / 0 min work/rest per hr | 60 / 0 min work/rest per hr | 45 / 15 min work/rest per hr | 30 / 30 min work/rest per hr |
| 26 | 60 / 0 min work/rest per hr | 60 / 0 min work/rest per hr | 45 / 15 min work/rest per hr | 30 / 30 min work/rest per hr |
| 27 | 60 / 0 min work/rest per hr | 60 / 0 min work/rest per hr | 45 / 15 min work/rest per hr | 30 / 30 min work/rest per hr |
| 28 | 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 |
| 29 | 60 / 0 min work/rest per hr | 45 / 15 min work/rest per hr | 30 / 30 min work/rest per hr | 15 / 45 min work/rest per hr |
| 30 | 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 |
| 31 | 60 / 0 min work/rest per hr | 15 / 45 min work/rest per hr | 0 / 60 min work/rest per hr | 0 / 60 min work/rest per hr |
| 32 | 30 / 30 min work/rest per hr | 0 / 60 min work/rest per hr | 0 / 60 min work/rest per hr | 0 / 60 min work/rest per hr |
| 33 | 0 / 60 min work/rest per hr | 0 / 60 min work/rest per hr | 0 / 60 min work/rest per hr | 0 / 60 min work/rest per hr |
| 34 | 0 / 60 min work/rest per hr | 0 / 60 min work/rest per hr | 0 / 60 min work/rest per hr | 0 / 60 min work/rest per hr |
| 35 | 0 / 60 min work/rest per hr | 0 / 60 min work/rest per hr | 0 / 60 min work/rest per hr | 0 / 60 min work/rest per hr |
| 36 | 0 / 60 min work/rest per hr | 0 / 60 min work/rest per hr | 0 / 60 min work/rest per hr | 0 / 60 min work/rest per hr |
Required inputs: wbgtC, workload
Optional inputs: acclimatization, cafC
Permitted work time changed in 478 of the reference scenarios: more work permitted in 368 and less in 110. Review both directions before relying on it.
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Get notified when Malaysia DOSH Heat Stress Guidelines 2016 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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