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CCPS Process Safety Glossary

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The end points of a confidence interval.

That portion of a distribution which is expected to contain the mean value a...

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The probability that an assertion made about a statistical property of a...

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The upper and lower endpoints of a confidence interval.

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.

the systematic application of management policies, procedures, and practices...

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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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Obstacles in the path of the flame that generate turbulence.

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

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The undesirable result of a loss event, usually measured in health and...

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

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The methodology used for building siting evaluation that is based on...

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Development of numerical estimates of the expected effects of incident...

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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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Continued uniformity, during a period or from one period to another.

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

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Primary containment system, basic process control system, operating...

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

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The enclosure of process and/or control of the environment in which it is...

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A generalized approach for limiting or eliminating exposure of personnel,...

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

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Doing better as a result of regular, consistent efforts rather than episodic...

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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

A reaction vessel in which the feed is continuously added and the products...

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A reaction vessel in which the feed is continuously added and the products...

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A system of controls to ensure that contracted services support (1) safe...

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

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

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Documents covered under a revision control process to ensure that up-to-date...

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