Abstract: AT 5 P.M.ON 11/16/84 AN ELEVATED CONTAINER FULL OF DRY MATERIALS USED IN THE MANUFACTURING OF PLASTIC CONTAINERS WAS BEING DUMPED INTO A LARGER VAT USED IN MIXING - BLENDING THE COMPOUND. THE ELEVATED CONTAINER SLIPPED AWAY FROM THE EDGE OF THE VAT SPILLING APPROXIMATELY 80% OF THE CONTENTS TO THE FLOOR BELOW; THE RESULT WAS 5 EXPOSURES TO THE GENERATED DUST. SYMPTOMS WERE DIZZINESS AND THROAT - UPPER RESPIRATORY TRACT IRRITATION. EMPLOYEE 1# WAS THE PRIMARY EXPOSURE. EMPLOYEE 2# - 5# WERE EXPOSED AS A RESULT OF THE CLEAN - UP OPERATION. ALL WERE HOSPITALIZED (BETWEEN 8:00 P.M. 1:30 AM) OVER NIGHT FOR OBSERVATION & RELEASED.