CCPS Process Safety Glossary

A written agreement between a toller and their client to outline the extent...

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An agreement that allows a toller to release information to a third party...

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A set of interconnected equipment forming a system.

An explosion of fuel-oxidant mixture inside a closed system (e.g. vessel or...

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A deflagration occurring in an enclosed volume such as a pipe or pressure...

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Obstacles such as walls and ceilings of a building, vessel, pipe, etc. that...

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Small obstacles in the path of a flame front or dispersing vapor cloud that...

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Make/break a logical link (e.g., as between a MMI and a MPU, eventually...

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The direct, undesirable result of an accident sequence usually involving a...

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The direct result of a hazardous event, usually expressed in safety...

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The cumulative, undesirable result of an incident, usually measured in...

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The analysis of the expected effects of an incident, independent of its...

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The analysis of the expected effects of incident outcome cases independent...

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A measure of the expected effects of an incident outcome case.

The direct, undesirable result of an accident sequence usually involving a...

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A device designed to maintain pressure within preset limits in a liquid-...

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The layer near the ground (about 50 m to 100 m deep) where the stress, ô,...

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A system condition in which under no condition reactants or products are...

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A test in which a flame arrester is subjected to flame of a continuously...

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Reactors that are characterized by a continuous flow of reactants into and a...

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Emissions that are long in duration compared with the travel time (time for...

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Based on the Monin–Obukhov length, L

Factors that facilitate the occurrence of an incident such as physical...

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Physical conditions, management practices, etc. that facilitated the...

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A mechanism used to regulate or guide the operation of a machine, apparatus...

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A scaling velocity important during lightwind daytime conditions with strong...

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A relatively slow, self-sustaining, barely luminous gas-phase reaction of...

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A self-sustained low energy electrical discharge with nonthermal ionization...

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As defined by DOT, a corrosive material is a liquid or solid that causes...

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The quantity of electricity on the positive plate of a capacitor of 1 Farad...

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Force between two charged bodies is proportional to the product of the two...

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The mechanism by which an interference source produces interference in a...

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A process subject to regulatory requirements established under the OSHA PSM...

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Faults that can be classified as hidden, concealed, unannounced, undetected...

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The acronym for Chemical Process Quantitative Risk Analysis. It is the...

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The unit of computing system that includes the circuits controlling the...

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