September 2024 | AIChE

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September 2024

Incipient failure

An imperfection in the state or condition of hardware such that a degraded or catastrophic failure can be expected to result if corrective action is not taken.

Incident Warning Sign

An indicator of a subtle problem that could lead to an incident.

Incident Sequence

A series of events composed of an initiating event and intermediate events leading to an undesirable outcome.

Incident Outcome

The physical manifestation of the incident: for toxic materials, the incident outcome is a toxic release, while for flammable materials; the incident outcome could be a boiling liquid expanding vapor explosion (BLEVE), flash fire, vapor cloud explosion (VCE), etc. For example, the incident outcome...

Incident Investigations

CCPS RBPS Element 17: This Element is the system used to identify, investigate, and document incidents, including tracking corrective actions to closure.

Incident Investigation Team

a group of qualified people who examine an incident in a manner that is timely, objective, systematic, and technically sound to determine that factual information pertaining to the event is documented, probable cause(s) are ascertained, and complete technical understanding of such an event is...

Incident Investigation Management System

A written document that defines the roles, responsibilities, protocols, and specific activities to be carried out by personnel performing an incident investigation.

Incident investigation

A systematic approach for determining the causes of an incident and developing recommendations that address the causes to help prevent or mitigate future incidents. See also Root cause analysis and Apparent cause analysis.

Incident

An event, or series of events, resulting in one or more undesirable consequences, such as harm to people, damage to the environment, or asset/business losses. Note: Such events include fires, explosions, releases of toxic or otherwise harmful substances, runaway reactions, etc.

Impulse

The area under the overpressure-time curve for explosions. The area can be calculated for the positive phase or negative phase of the blast.

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