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Malaysia DOSH Heat Stress Guidelines 2016 — Heat Stress Work/Rest Limits

Malaysia workplace heat stress guideline using ACGIH-style Action Limit and TLV decisions.

Open Malaysia DOSH Heat Stress Guidelines 2016 in the interactive Guidance Wiki →

Authority

Malaysia DOSH

Jurisdiction

Malaysia

Legal status

Guidance

Rule type

Schedule Engine

Standard ID

HGC-020

Governing formula

No standalone formula is published for this standard; see programmable logic and parameters below.

Work/rest limits

Acclimatized workers

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	50 / 10 min work/rest per hr	45 / 15 min work/rest per hr
25	60 / 0 min work/rest per hr	60 / 0 min work/rest per hr	50 / 10 min work/rest per hr	45 / 15 min work/rest per hr
26	60 / 0 min work/rest per hr	60 / 0 min work/rest per hr	50 / 10 min work/rest per hr	45 / 15 min work/rest per hr
27	60 / 0 min work/rest per hr	60 / 0 min work/rest per hr	50 / 10 min work/rest per hr	45 / 15 min work/rest per hr
28	60 / 0 min work/rest per hr	50 / 10 min work/rest per hr	45 / 15 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	30 / 30 min work/rest per hr
30	60 / 0 min work/rest per hr	30 / 30 min work/rest per hr	30 / 30 min work/rest per hr	15 / 45 min work/rest per hr
31	45 / 15 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
32	30 / 30 min work/rest per hr	15 / 45 min work/rest per hr	15 / 45 min work/rest per hr	0 / 60 min work/rest per hr
33	15 / 45 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
34	15 / 45 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

Unacclimatized workers

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	50 / 10 min work/rest per hr	45 / 15 min work/rest per hr
25	60 / 0 min work/rest per hr	60 / 0 min work/rest per hr	50 / 10 min work/rest per hr	45 / 15 min work/rest per hr
26	60 / 0 min work/rest per hr	60 / 0 min work/rest per hr	50 / 10 min work/rest per hr	45 / 15 min work/rest per hr
27	60 / 0 min work/rest per hr	60 / 0 min work/rest per hr	50 / 10 min work/rest per hr	45 / 15 min work/rest per hr
28	60 / 0 min work/rest per hr	50 / 10 min work/rest per hr	45 / 15 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	30 / 30 min work/rest per hr
30	60 / 0 min work/rest per hr	30 / 30 min work/rest per hr	30 / 30 min work/rest per hr	15 / 45 min work/rest per hr
31	45 / 15 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
32	30 / 30 min work/rest per hr	15 / 45 min work/rest per hr	15 / 45 min work/rest per hr	0 / 60 min work/rest per hr
33	15 / 45 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
34	15 / 45 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

Inputs

Required inputs: wbgtC, workload

Optional inputs: acclimatization, cafC

Sources

• 🇲🇾 Malaysia heat stress management guidelines — Malaysia DOSH, Ministry of Human Resources (official PDF endpoint)
• ACGIH heat stress resources — ACGIH (official public page)

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