727.29   WARNING SIGNS.
   Prior to releasing the generating gases, fumes or vapors, warning signs shall be posted on all entrances or doors to the premises in which the fumigating is to be carried on. Such warning sign shall be as follows:
   DANGER
   (Crossbones and Skull)
   Fumigated With
   (State name of chemical or gas)
   (Crossbones and Skull)
   DEADLY POISON- HIGHLY TOXIC
   ALL PERSONS ARE WARNED TO
   KEEP AWAY
      Name of Fumigator
      Address
      Operator in Charge
   Such signs shall be printed in red ink on white cardboard and the letters shall be at least two inches in size.
(Ord. 196-57. Passed 7-29-57.)