Abstract: ON OCTOBER 31, 1986, AT APPROXIMATELY 10:45 AM, EMPLOYEE #1 WAS ARC WELDING AT THE SIDE OF A VAT CONTAINING A HOT (185 DEGREES TO 190 DEGREES FAHRENHEIT) AND CORROSIVE (12.5 TO 13 PH) MIXTURE OF SODIUM HYDROXIDE, SODIUM SULFIDE AND WOOD MATERIALS KNOWN AS "BLACK LIQUOR". WHILE EMPLOYEE #1 WAS LYING ON HIS SIDE, WELDING AT THE SIDE OF THE VAT, THE "BLACK LIQUOR" OVERFLOWED AND COVERED EMPLOYEE #1, WHO WAS WEARING ONLY PPE REQUIRED FOR WELDING OPERATIONS. ALTHOUGH EMPLOYEE #1 WAS HELPED TO AN EMERGENCY SHOWER IMMEDIATELY, HE SUSTAINED EXTENSIVE THERMAL AND CHEMICAL BURNS. HE WAS DECLARED BRAIN DEAD AT 2 PM ON DECEMBER 22, 1986, AS A RESULT OF A BRAIN INFECTION COMPLICATION.