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Occupational Safety and Health Administration OSHA

Accident Report Detail

Accident: 170181812 - Employees Are Exposed To Ethylene Oxide Gas

Accident: 170181812 -- Report ID: 0950643 -- Event Date: 03/04/1992
InspectionOpen DateSICEstablishment Name
11202458303/10/19928062Northridge Hospital Medical Center
AT APPROXIMATELY 6:50 P.M. ON MARCH 4, 1992, AN ACCIDENTAL ETHYLENE OXIDE RELEASE OCCURRED AT NORTHRIDGE HOSPITAL MEDICAL CENTER. EMPLOYEES #1 AND #2 WERE REPLACING TWO ETHYLENE OXIDE GAS CYLINDERS IN THE CENTRAL SERVICE DEPARTMENT. EMPLOYEE #1 WAS HAVING DIFFICULTY REMOVING A VALVE PROTECTION DEVICE FROM ONE OF THE CYLINDERS. A CHANNEL LOCK WRENCH WAS USED TO LOOSEN THE VALVE PROTECTOR. WHEN THE WRENCH WAS TURNED, PART OF THE WRENCH PROTRUDED THROUGH THE VALVE PROTECTION CAP AND CAUGHT THE VALVE HAND WHEEL, PARTLY OPENING IT AND RELEASING ETHYLENE OXIDE GAS. THE FLOW OF GAS WAS STOPPED BY TURNING THE CHANNEL LOCK WRENCH IN THE OPPOSITE DIRECTION, WHICH CLOSED THE VALVE.
Keywords: wrench, maintenance, vapor, ethylene oxide, inhalation, valve, overexposure, accidental discharge
Employee # Inspection Age Sex Degree Nature Occupation
1 112024583 Non Hospitalized injury Burn(Chemical) Supervisors, mechanics and repairers
2 112024583 Non Hospitalized injury Burn(Chemical) Supervisors, mechanics and repairers

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