CCPS Process Safety Glossary

The catastrophic rupture of a pressurized gas/vapor-filled vessel by means...

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A chemical for which there is scientifically valid evidence that it is a...

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Models that provide quantitative information on source rates and extent of...

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Subdivision equal to one part in 1012.

To produce a small quantity of a product as a test prior to full-scale...

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A structure that supports pipes, power leads, and instrument cable trays....

A diagram that shows the details about the piping, vessels, and...

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A plane surface through he study cube on which the value of one of the three...

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Refers to PES equipment status. The PES is approved when it has operated...

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Refers to PES equipment status. After successful operations as plant...

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Failure rate data generated from collecting information on equipment failure...

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Data which pertains to a unique population of equipment specific to a...

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A comparison of values for process variables that allows faults in the...

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Synonymous with Programmable Controller System.

Abbreviation for programmable logic controller, microcomputer-based control...

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Make, break, a physical connection (e.g., use a physical connector for...

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See Equipment, On-Line Pluggage

A cloud of pollutants resulting from a continuous but not necessarily steady...

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Rise of plume in elevation above source due to buoyancy or momentum.

A DOT term for extremely dangerous poisons, that is, poisonous gases or...

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A DOT term for liquid, solid, paste, or semisolid substances-other than...

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A more general form of the Laplace equation in which the intervening space...

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The process by which charges are moved to new locations on a conductor by...

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Substance made of giant molecules formed by the union of simple molecules (...

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A chemical reaction in which one or more small molecules combine to form...

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A chemical reaction generally associated with the production of plastic...

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The combustion of material evaporating from a layer of liquid at the base of...

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Any solid material through which gas can flow, and that affords some measure...

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A gas with density less that of air at ambient temperature.

The potential (f) any point is measured by the work required to bring unit...

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A volume within a plant with sufficient congestion and/or confinement that a...

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The temperature that a parcel of air at height z at temperature T would have...

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Generic term for subdivided solid material, comprising pellets, granules and...

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Vertical lines bounding and connected to Ladder Diagrams on the left and,...

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Parts per billion; a unit for measuring the concentration of a gas or vapor...

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Parts per million; a unit for measuring the concentration of a gas or vapor...

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