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Occupational Safety and Health Administration OSHA

Accident Report Detail

Accident: 170572457 - Twelve Employees Affected By Acute Chemical Exposure

Accident: 170572457 -- Report ID: 0454510 -- Event Date: 02/22/1998
InspectionOpen DateSICEstablishment Name
30177334702/24/199828693v, Inc.
At approximately 4:00 p.m. on February 22, 1998, Employee #3, a chemical operator, added the wrong catalyst for a reaction, causing overpressurization of the vessel. The safety relief valve opened, releasing vapors and liquid that settled to the ground near a roll-up door. Employees #4 through #12, contractors doing pipe fitting work on an adjacent reactor, were exposed to the vapors as they left the area. Employee #1 was exposed during clean-up and Employee #2 was performing housekeeping duties near the roll-up doors. Employees #1 through #12 were transported to the hospital complaining of nausea, dizziness, and chest tightness--all symptoms of acute chemical exposure. They were treated and released. The employer was cited for violations of T8CCR 1910.119, T8CCR 1910.120, and T8CCR 1910.1200.
Keywords: safety relief valve, pressure vessel, inhalation, nausea, air contamination, chemical reaction, dizziness, chemical vapor, overexposure, chemical
Employee # Inspection Age Sex Degree Nature Occupation
1 301773347 Non Hospitalized injury Other Plumbers, pipefitters and steamfitters
2 301773347 Non Hospitalized injury Other Plumbers, pipefitters and steamfitters
3 301773347 Non Hospitalized injury Other Miscellaneous plant and system operators
4 301773347 Non Hospitalized injury Other Miscellaneous plant and system operators
5 301773347 Non Hospitalized injury Other Miscellaneous plant and system operators
6 301773347 Non Hospitalized injury Other Plumbers, pipefitters and steamfitters
7 301773347 Non Hospitalized injury Other Plumbers, pipefitters and steamfitters
8 301773347 Non Hospitalized injury Other Plumbers, pipefitters and steamfitters
9 301773347 Non Hospitalized injury Other Plumbers, pipefitters and steamfitters
10 301773347 Non Hospitalized injury Other Plumbers, pipefitters and steamfitters
11 301773347 Non Hospitalized injury Other Plumbers, pipefitters and steamfitters
12 301773347 Non Hospitalized injury Other Plumbers, pipefitters and steamfitters

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