CCPS Process Safety Glossary

An unplanned event with the potential for undesirable consequences. (CCPS,...

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An unplanned event or series of events and circumstances that may result in...

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An unusual or unexpected event, which either resulted in, orh ad the...

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The identification and tabulation of incidents without regard to...

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The management process by which underlying causes of undesirabe events are...

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A written document that defines the roles, responsibilities, protocols, and...

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A group of qualified people that examine an incident in a manner that is...

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The physical manifestation of an incident.

The quantitative definition of a single result of an incident outcome...

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A fixed or general pattern of incident causation. From a review of...

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An imperfection in the state or condition of hardware such that a degraded...

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The term can refer to any undesired results occurring when substances are...

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Materials which could cause dangerous reactions from direct contact with one...

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Give events A and B, A is independent of B if, and only if, the probability...

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The Fatal Accident Rate (FAR) for a particular hazard, with the exposure...

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The risk to a person in the vicinity of a hazard. This includes the nature...

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This is the process of momentarily grounding a conductor which has been...

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Time interval (starting at operating conditions) after which a runaway shows...

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Reasoning from individual cases to a general conclusion by postulating that...

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A chemical that does not react chemically with other substances. (Cambridge...

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A nonflammable, nonreactive gas that can be used to render the combustible...

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A technique by which a combustible mixture is rendered nonignitable by...

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The basic facilities, services, and installations needed for the functioning...

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The taking of a substance through the mouth.

Importance: A route of...

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A listing of chemicals that are in a mixture.

Importance: Knowing...

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The breathing in of a substance in the form of gas, vapor, fume, mist, or...

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A condition in which the hazards associated with the materials and...

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A system is inherently safer if it relies on the chemistry and physics (the...

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A chemical substance used to prevent or stop a chemical reaction, such as...

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A chemical which is added to another substance to prevent an unwanted...

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A list containing all the incidents identified by the enumeration methods...

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The maximum normal operating pressure that exists at a point in the system...

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Originating or establishing basic conditions or start-up state.

The first event in an event sequence. Can result in an accident unless...

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The event that initiates the scenario leading to the undesired consequence...

Physical harm or damage to a person resulting from traumatic contact between...

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