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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° 46, 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) |
Work clothes (long sleeve shirt and pants) | 0º |
Cloth (woven material) coveralls | 0º |
3º | |
SMS polypropylene coveralls | 0.5º |
Polyolefin coveralls | 1º |
11º |
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 (PHEL) 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 |
80.0 | >8:00 | >8:00 | >8:00 | 8:00 | 6:35 | 4:30 |
81.0 | >8:00 | >8:00 | >8:00 | 8:00 | 6:35 | 4:30 |
82.0 | >8:00 | >8:00 | 8:00 | 7:05 | 5:25 | 3:40 |
83.0 | >8:00 | 8:00 | 7:45 | 6:25 | 4:55 | 3:20 |
84.0 | >8:00 | 8:00 | 7:05 | 5:55 | 4:30 | 3:05 |
85.0 | 8:00 | 7:45 | 6:30 | 5:20 | 4:05 | 2:50 |
86.0 | 8:00 | 7:05 | 5:55 | 4:55 | 3:45 | 2:35 |
87.0 | 7:25 | 6:30 | 5:25 | 4:30 | 3:25 | 2:20 |
88.0 | 6:45 | 5:55 | 4:55 | 4:05 | 3:10 | 2:10 |
89.0 | 6:10 | 5:25 | 4:30 | 3:45 | 2:50 | 2:00 |
90.0 | 5:40 | 5:00 | 4:10 | 3:25 | 2:40 | 1:50 |
91.0 | 5:15 | 4:35 | 3:50 | 3:10 | 2:25 | 1:40 |
