When the Work Scope Changes, It is Paramount that a Hazard Evaluation Be Completed
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Type:  Lessons Learned

Publisher:  Argonne National Laboratory (Lemont, IL), Z - Not Used (use Lemont, IL Instead - was Argonne, IL )

Published As:  Public

Date: 

Topics:  Respiratory Protection, Operations, Work Management/Planning, Deactivation and Decommissioning, Glovebox & Containment Systems

During glovebox decontamination operations and liquid (decon solution) transfer, a foaming reaction occurred between the decon, the rinse solution (hydrochloric and nitric acid solution), and the sodium bicarbonate (neutralization agent). The reaction occurred outside the glovebox, but inside the tent (secondary containment).

When planning work scope, work planning documents must contain enough detail to ensure that the hazards are appropriately evaluated and re-evaluated when questions arise prior to or during work implementation. If the work is not described or scoped appropriately, there can be a failure in identification of hazards, and mitigative measures to manage hazards can be missed.

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