TSI Instruments questemp 48n

Appendix B
Flag Conditions for U.S. Navy/Marine Corp. Ashore
28
WBGT(F)
I
II
III
IV
V
VI
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
Flag Conditions for U.S. Navy/Marine Corp. Ashore
The following chart details the heat stress monitoring Flag Conditions for U.S. Navy/Marine
Corp. Ashore in Degrees Fahrenheit and Celsius.
No Flag
Green
Yellow
Red
Black
Flag Degrees F
<80.0
80.0–84.9
85.0–87.9
88.0–89.9
>90
Flag Degrees C
<26.7
26.7–29.4
29.4–31.1
31.1–32.2
>32.2
*Rest means minimal physical activity (sitting or standing) and should be accomplished in the
shade if possible.