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23
ACGIH CLOTHING CORRECTIONS
The following clothing corrections are in degrees Celsius. When a clothing
correction is entered into the setup portion of the Questemp
°
36, 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
Summer
work
uniform 0
Cloth (woven material) overalls
+3.5
Double-cloth
overalls
+5.0
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 7:45
6:00
4:05
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
92.0
4:50
4:10
3:30
2:55
2:15
1:30
93.0
4:25
3:50
3:15
2:40
2:00
1:25
94.0
4:05
3:35
3:00
2:25
1:50
1:15
95.0
3:45
3:15
2:45
2:15
1:45
1:10
96.0
3:25
3:00
2:30
2:05
1:35
1:05
97.0
3:10
2:45
2:20
1:55
1:25
1:00
24
PHEL Curves (Continued)
WBGT(F)
I
II
III
IV
V
VI
98.0
2:55
2:35
2:10
1:45
1:20
0:55
99.0
2:40
2:20
2:00
1:40
1:15
0:50
100.0
2:30
2:10
1:50
1:30
1:10
0:45
101.0
2:20
2:00
1:40
1:25
1:05
0:45
102.0
2:10
1:50
1:35
1:15
1:00
0:40
103.0
2:00
1:45
1:25
1:10
0:55
0:35
104.0
1:50
1:35
1:20
1:05
0:50
0:35
105.0
1:40
1:30
1:15
1:00
0:45
0:30
106.0
1:35
1:25
1:10
0:55
0:45
0:30
107.0
1:30
1:15
1:05
0:50
0:40
0:25
108.0
1:20
1:10
1:00
0:50
0:35
0:25
109.0
1:15
1:05
0:55
0:45
0:35
0:25
110.0
1:10
1:00
0:50
0:40
0:30
0:20
111.0
1:05
1:00
0:50
0:40
0:30
0:20
112.0
1:00
0:55
0:45
0:35
0:25
0:20
113.0
0:55
0:50
0:40
0:35
0:25
0:15
114.0
0:55
0:45
0:40
0:30
0:25
0:15
115.0
0:50
0:45
0:35
0:30
0:20
0:15
116.0
0:45
0:40
0:35
0:25
0:20
0:15
117.0
0:45
0:40
0:30
0:25
0:20
0:10
118.0
0:40
0:35
0:30
0:25
0:15
0:10
119.0
0:35
0:35
0:25
0:20
0:15
0:10
120.0
0:35
0:30
0:25
0:20
0:15
0:10
121.0
0:35
0:30
0:25
0:20
0:15
0:10
122.0
0:30
0:25
0:20
0:15
0:15
0:10
123.0
0:30
0:25
0:20
0:15
0:10
0:10
124.0
0:25
0:25
0:20
0:15
0:10
0:05