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Occupational Safety and Health Administration OSHA

Accident Report Detail

Accident: 201483534 - One Employee Killed, One Injured In Chemical Explosion

Accident: 201483534 -- Report ID: 0950627 -- Event Date: 04/24/2000
InspectionOpen DateSICEstablishment Name
3011299904/24/20002892Special Devices, Incorporated

At approximately 6:30 a.m. on April 24th, 2000, Employee #1 was working in the TEM 5 machine primefill enclosure in the commercial manufacturing center, building #106. Zirconium potassium perchlorate (ZPP), was stored in the vibratory feeder mechanism inside the enclosure. Employee #1 entered the area through the primefill maintenance door and, as he was working inside the enclosure, a charge of static electricity ignited either the ZPP in the vibratory feeder mechanism or the residual ZPP on the walls inside the enclosure. This resulted in an explosion that killed Employee #1. Employee #2, who was not working in the enclosure, sustained minor head injuries. Employee #1 was not wearing conductive footwear at the time of the explosion.

Keywords: head, static electricity, dust, protective clothing, ppe, explosion, chemical reaction, spark, combustible dust, chemical

Employee Details
Employee # Inspection Age Sex Degree Nature Occupation
1 30112999 Fatality Other Machine operators, not specified
2 30112999 Non Hospitalized injury Other Machine operators, not specified

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