Spotting and pretreating operations conducted in accordance with Section 2106 shall not change the type of the dry cleaning plant.
|Q = 100 × ALD||(Equation 21-1)|
|Q||=||flow rate exhausted through the hood, cubic feet per minute (m3/s).|
|ALD||=||area of the loading door, square feet (m2).|
Exception: Where approved, a manual steam jet not less than 3/4 inch (19 mm) with a continuously available steam supply at a pressure not less than 15 pounds per square inch gauge (psig) (103 kPa) is allowed to be substituted for the automatic fire-extinguishing system.