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CCPS Process Safety Glossary

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Any individual, group, organization, or government that conducts activities...

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undesirable effect of a drug, vaccine, or medical device; it can be as mild...

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The diameter of a sphere of the same particle density having the same...

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The diameter of a unit density sphere having the same settling velocity (due...

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The fraction of liquid phase, 1 - x, which, after flashing to the atmosphere...

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The principal object, substance, or material inflicting the physical harm or...

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a microorganism or chemical substance, the presence or absence of which...

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Societal risk for on-site workers in occupied buildings (API 752).

The statistical combination of several data points to form a single data...

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Air

Sea level concentrations of the six principal constituents of dry and...

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The control of the level of pollutants prescribed by regulations that may...

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Procedures, schematic, software, maintenance, documentation, hardware, logic...

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As low as reasonably practicable; the concept that efforts to reduce risk...

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Describes a progressive, qualitative measure of the likelihood of terrorist...

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The act of a moving vessel striking against, or colliding with, a...

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Distance in the direction the vapor cloud is traveling, i.e. the wind...

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A device or system that is comprised of components that meet both the...

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Hardware operation that alternates between standby and running, e.g., a pump...

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The basis for an off-site consequence analysis required by the EPA RMP Rule...

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Improvement of conditions immediately after an accident; treatment of...

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A data base that contains all input data for a CPQRA, including the System...

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An immediate, severe, potentially life-threatening shock reaction to an...

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A single F-N pair which, along with the slope, defines an F-N risk...

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Verbal evidence that is not supported by other, corroborating evidence. For...

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Angle formed between horizontal plane and the slope line extending along...

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An unusual, abnormal, or irregular set of circumstances that left...

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Adding test glossary definition

A human performance analysis tool that examines how human behavior is...

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a drug that fights a bacterial infection.

infection-fighting proteins that the body produces to destroy foreign...

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A foreign substance in the body (a bacterium, virus, or protein, for example...

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The relative ability of a substance to function as an antigen.

Substances such as antibacterial, antiviral, antifungal, and anti-parasitic...

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Having the ability to dissipate charge at a sufficient rate to prevent...

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In practice, reaction rates are often determined by physical processes (e.g...

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A less formal investigation method that focuses on the immediate causes of a...

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