23
Appendix B
Appendix B
ACGIH
Appendix B: Heat Exposure Tables
ACGIH
Screening Criteria for Heat Stress Exposure. WBGT values in °C. NOTE: according to the ACGIH’s guidelines, the temperature values represent a work and rest process which is explained in the standards. Please refer to the ACGIH TLVs and BEIs for specific details.
| Work and recovery |
| Light | Moderate | Heavy | Very Heavy |
| (TLV ) |
|
|
|
|
|
|
|
|
|
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| |
|
|
|
|
|
|
|
| 75% to 100% |
| 31.0 | 28.0 | 26.0* | 23.5* |
|
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|
|
|
|
|
| 50% to 75% |
| 31.0 | 29.0 | 27.5 | 25.5* |
|
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|
|
|
|
|
| 25% to 50% |
| 32.0 | 30.0 | 29.0 | 28.0 |
|
|
|
|
|
|
|
| 0% to 25% |
| 32.5 | 31.5 | 30.5 | 30.0 |
|
|
|
|
|
|
|
| Work and recovery |
| Light | Moderate | Heavy | Very Heavy |
| (Action Limit) |
|
|
|
|
|
|
|
|
|
|
| |
|
|
|
|
|
|
|
| 75% to 100% |
| 28.0 | 25.0 | 22.5* | 20.0* |
|
|
|
|
|
|
|
| 50% to 75% |
| 28.5 | 26.0 | 24.0 | 22.5* |
|
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|
|
|
|
|
| 25% to 50% |
| 29.5 | 27.0 | 25.5 | 24.5 |
|
|
|
|
|
|
|
| 0% to 25% |
| 30.0 | 29.0 | 28.0 | 27.0 |
|
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|
|
|
|
|
*Values not specified by ACGIH have been estimated for continuity.
