24
Appendix B
ACGIH Clothing Corrections
ACGIH Clothing Corrections
The following clothing corrections are in degrees Celsius. When a clothing correction is entered into the setup portion of the QUESTemp° 48N, the value is added to the WBGT only for looking up the stay times. The WBGT value displayed by the unit does not reflect corrections.
Clothing type | Clothing correction (Addition to WBGT (ºC) |
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Work clothes (long sleeve shirt and pants) | 0º |
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Cloth (woven material) coveralls | 0º |
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3º | |
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SMS polypropylene coveralls | 0.5º |
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Polyolefin coveralls | 1º |
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11º | |
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Cited from "American Conference of Governmental Industrial Hygienists - Threshold Limit Values and Biological Exposure Indices for 2008"; Reprinted with permission from ACGIH
United States Navy
Physiological Heat Exposure Limits (PHELs) Time Table (Without the presence of fuel combustion gases/fuel vapors)
The recommended working hours are shown based on a maximum of eight hours. Naval personnel will follow a category, I - VI, based upon their function.
PHEL Curves (Total Exposure Time in Hours: Minutes)
WBGT(F) |
| I | II | III |
| IV | V | VI | ||
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80.0 | >8:00 | >8:00 | >8:00 | 8:00 | 6:35 | 4:30 | ||||
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81.0 | >8:00 | >8:00 | >8:00 | 8:00 | 6:35 | 4:30 | ||||
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82.0 | >8:00 | >8:00 | 8:00 | 7:05 | 5:25 | 3:40 | ||||
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83.0 | >8:00 | 8:00 | 7:45 | 6:25 | 4:55 | 3:20 | ||||
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84.0 | >8:00 | 8:00 | 7:05 | 5:55 | 4:30 | 3:05 | ||||
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85.0 | 8:00 | 7:45 | 6:30 | 5:20 | 4:05 | 2:50 | ||||
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86.0 | 8:00 | 7:05 | 5:55 | 4:55 | 3:45 | 2:35 | ||||
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87.0 | 7:25 | 6:30 | 5:25 | 4:30 | 3:25 | 2:20 | ||||
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88.0 | 6:45 | 5:55 | 4:55 | 4:05 | 3:10 | 2:10 | ||||
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89.0 | 6:10 | 5:25 | 4:30 | 3:45 | 2:50 | 2:00 | ||||
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90.0 | 5:40 | 5:00 | 4:10 | 3:25 | 2:40 | 1:50 | ||||
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91.0 | 5:15 | 4:35 | 3:50 | 3:10 | 2:25 | 1:40 | ||||
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