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Occupational Safety and Health Administration OSHA

Accident Report Detail

Accident: 170150924 - Employee'S Hand And Arm Injured In Zpp Explosion

Accident: 170150924 -- Report ID: 0950643 -- Event Date: 10/27/1993
InspectionOpen DateSICEstablishment Name
11217235810/27/19932892Special Devices, Incorporated
At about 10:30 a.m. on October 27, 1993, Employee #1, a chemist at a pyrotechnics and explosive ordnance facility, was preparing to screen a powder explosive material through a sieve for uniform size. He placed two spoonfuls of zirconium potassium perchlorate (ZPP) into a sieve and returned the remaining portion, about 2 pounds in a plastic container to an adjacent mixing bay. Employee #1 returned to his work station, which is designed so that the employee stands inside the building and performs the screening task on a shelf outside the building. The task and the employee are separated by a steel wall with two hand access openings. When Employee #1 reached into the right opening, the ZPP powder exploded, seriously injuring his right hand and arm.
Keywords: explosives, explosion, arm, powder, hand
Employee # Inspection Age Sex Degree Nature Occupation
1 112172358 Hospitalized injury Amputation Chemists, except biochemists

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