CCPS Process Safety Glossary

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

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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.

The probability that an item is able to perform a required function under...

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

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Material can be removed from the atmosphere by a variety of processes.

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

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

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

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

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See Data resource.

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

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

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An inspection of a plant/process unit, drawings, procedures, emergency plans...

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Any electrical signal capable of being propagated into and interfering with...

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Measure of atmospheric stability proportional to the vertical gradient of...

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A measure of human injury, environmental damage, or economic loss in terms...

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A measure of potential economic loss, human injury, or environmental damage...

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The development of a quantitative estimate of risk based on engineering...

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The process by which the results of a risk analysis (i.e., risk estimates)...

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Lines that connect points of equal risk around the facility ("isorisk" lines...

Combining the estimated consequences and likelihood of all incident outcomes...

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The assessment of risk, coupled with an appraisal of the significance of the...

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The systematic application of management policies, procedures, and practices...

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The systematic application of management policies, procedures, and practices...

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