147A.41—Person in charge of fumigation; flammable fumigants.
        
        (1) 
         Before the space that is to be fumigated is sealed, it is thoroughly cleaned, and all refuse, oily waste, and other combustible material is removed;
    
    
        
        (2) 
         Before fumigation, all fire fighting equipment, including sprinklers and fire pumps, is in operating condition; and
    
    
        
        (3) 
         Before and during fumigation, electrical circuits that are in the space that is fumigated are de-energized.