CCPS Process Safety Glossary

A coherent fault tree uses only "AND" and "OR" gates to represent the...

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Capable of burning.

The technique of maintaining the concentration of combustible material in a...

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(see also “Powder”). Any finely divided solid material, 425 mm or less in...

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A term used to classify certain liquids that will burn on the basis of flash...

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Any liquid that has a closed-cup flash point at or above 100ºF (37.8ºC), as...

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A chemical process of oxidation that occurs at a rate fast enough to produce...

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Exothermic chemical reaction with oxygen as a primary reagent. (CCPS, 1996...

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A device that is manufactured by a consistent production method and has...

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The failure of more than one component, item, or system due to the same...

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Failure, which is the result of one or more events, causing coincident...

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An event having a single external cause with multiple failure effects which...

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The ability of materials to exist in contact without specified (usually...

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Any Device, unit , or Application Program which is a part of an Automated...

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An equipment part.

See Equipment boundary.

One member of the roster of methods that collectively form the complete...

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A class of models that can simulate very highly resolved three-dimensional...

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Dispersion models that treat the partial differential Navier–Stokes...

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Equipment composed of hardware (H/W) and software (S/W) that performs basic...

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Includes various types of computers (e.g., mini and micro), programmable...

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A computer code developed by SAIC to: aggregate data sets into a single...

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The relative amount of a substance when combined or mixed with other...

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The initial design of a project when basic parameters are known but design...

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The upper and lower endpoints of a confidence interval.

An explosion that occurs when the material is present in the form of a...

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Probability of occurrence given that a precursor even has occurred.

Having a conductivity greater than 104 pS/m or a resistivity less than 108 W...

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Having an average resistance between 2.5 ¥ 103 W and 1¥106Was measured using...

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Having an electrical resistance less than 103 W per meter of hose length...

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The reciprocal of resistivity expressed as Siemens per meter or more usually...

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See “Bulking Brush Discharge.”

A statistical measure of uncertainty.

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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