CCPS Process Safety Glossary

Ideally the process of connecting one or more conductive objects to ground...

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

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A chemical or physical condition that has the potential for causing damage...

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A chemical or physical condition that has the potential for causing damage...

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

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A chemical, physical, or changing condition 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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A systematic qualitative technique to identify and evaluate process hazards...

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

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The analysis of hazardous situations associated with a process or activity,...

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The analysis of the significance of hazardous situations associated with a...

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

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The frequency with which hazards occur. Dimension (Time - 1).

The...

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A modified form of fault tree highlighting event mitigating feature pairs....

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The zone or region where hazard impact has the potential to occur.

Any chemical reaction with the potential to exhibit rates of increase in...

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In a broad sense, any substance or mixture of substances having properties...

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A solid waste, or combination of solid waste, which because of its quantity...

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In a broad sense, any substance or mixture of substances having properties...

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Hazardous waste can be classified as follows:

  • Ignitable—Based...
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A chemical for which there is statistically significant evidence based on at...

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The heat of reaction obtained by burning a unit mass of

The net difference in heat of formation of all reactants and of all products...

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The total quantity of thermal energy liberated or absorbed during a chemical...

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A gas whose density is greater than that of the ambient air. Synonymous with...

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A gas with density exceeding that of air at ambient temperature. See also...

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Heavy Gas Dispersion Model

Pertaining to the numeration system with a radix of sixteen.

Heavy Gas System Model (Witlox and McFarlane, 1985)

An event that, under different circumstances, might easily have resulted in...

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A device to prevent the passage of flame in the reverse direction,...

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