18-28-507.13.2 High temperature.
   The minimum airflow for Type I hoods used for high-temperature appliances such as deep-fat fryers shall be determined as follows:
 
Number of exposed sides
Formula
For SI:
4 (island or central hood)
Q = 150A
Q = 0.76A
3 or less
Q = 100A
Q = 0.51A
Alternate formula
Q = 100PD
Q = 0.51PD