CCPS Process Safety Glossary

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A device that is electrically and optically workable, used to demonstrate...

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A phase in the development of computerized systems in which all inputs to...

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The burning velocity is the rate of flame propagation relative to unburned...

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occurring as single-celled forms such as yeast and complex forms such as...

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A detonation that periodically fails and reinitiates during propagation....

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A manner of depicting multiple, time-based project activities (usually on a...

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Gas

The state of matter characterized by complete molecular mobility and...

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The addition of another flammable gas to a gas-air mixture to raise the...

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A class of transport and dispersion model which assumes that the...

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A system for exhausting air containing contaminants from a general work area...

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Data which is typical for a system. Such data will not have been collected...

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An organism's complete set of genetic material.

See "Surface Streamer".

Engineering, operating, or maintenance activities based on established codes...

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In PSM, a best or common practice that a facility or company has found to...

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A computer program technique the purpose of which is to prevent catastrophic...

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The eddy diffusivity coefficient K is used to solve the mass conservation...

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Totally new facility that may be built upon a greenfield or brownfield site...

Downward velocity of particles due to gravity (about 10 cm/s for an aerosol...

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The decrease in cloud height of a flowing dense gas due to the effects of...

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Undeveloped property that is being considered as a site for construction. (...

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Type of pipe connection that might result in electrical isolation by gasket...

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Commercially available device which automatically senses the presence of...

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Source emissions from near ground level.

The process of connecting one or more conductive objects to ground so that...

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An interlock accomplished by electro-relays and/or wires. An interlock not...

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Physical equipment directly involved in performing industrial process...

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That portion of the logic which is executed by electrical circuits comprised...

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An inherent chemical or physical characteristic that has the potential for...

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The identification of undesired events that lead to the materialization of a...

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A systematic qualitative technique to identify process hazards and potential...

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An experience-based list of hazards, potential incident situations, or other...

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Broken into three categories, "Safety and Environmental", "High Business...

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Identification of individual hazards of a system, determination of the...

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(i.e., Demand Rate) times the Fractional Deadtime of Safety Systems...

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The inventorying of material, system, process and plant characteristics that...

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