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CCPS Process Safety Glossary

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A gas that is maintained as liquid at temperatures at or below ambient...

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The deposited dose (per unit surface area, mg/cm2) of particles calculated...

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A storage device having a specified storage capacity such as bit a byte or a...

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A system developed by the National Institute for Occupational Safety and...

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Audit criteria derived from good, successful, common, or best practices in...

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A comparison and ranking of various risk estimates to prioritize risk...

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Time constant equal to the time in seconds for charge to decay by Ohm's Law...

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Synonymous with Ladder Diagram.

Core attribute of a protection layer related to the probability that the...

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The determination of reliability of a process, system, or equipment.

The collection of mathematically defined properties (e.g., Reliability,...

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A systematic analysis approach for evaluating equipment failure impacts on...

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An estimate, based on inspection results, of the time it will take for an...

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A manufacturer's catalogued part of a PES including Input and/or Output...

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The time necessary to identify and repair a fault. The average detection...

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A method of communication that requires the receiver to repeat the message...

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An item (equipment, chemical, procedure, etc.) that meets the design...

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A selection of incidents designed so as to contain one or more incidents...

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A unit part of a unit that is covered by the PSM program that is being...

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The property of conductors, depending on material, dimensions, and...

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The volume resistance of a sample of material having unit length and cross-...

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Management's determination of what needs to be done in response to an audit...

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See Data resource.

The labor effort, capital and operating costs, and other inputs that must be...

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The breathing system; in includes the lungs and air passages (trachea or "...

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A security strategy to neutralize the adversary or to evacuate, shelter in...

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The single person who has been assigned and has accepted the ultimate...

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An initiative implemented by the Chemical Manufacturers Association (CMA) in...

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Restart of the PES and its Application Program after all dynamic data (...

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Restart after power failure which occurs within the process dependent...

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Restart after Power Failure with a user programmed predetermined set of...

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The amount of a substance left behind during chemical processing. Also...

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To correct substantive deficiencies in the prior PHA, and then update and...

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A failure that may be immediately or almost immediately apparent through an...

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A failure may be immediately or almost immediately apparent through an alarm...

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A situation in which a non-response occurs at one dose, and a positive...

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