CCPS Process Safety Glossary

The fraction of time that the system is actually capable of performing its...

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The concentration averaged over time and/or space.

There are three Average Individual Risks.

  • A. Average Individual...
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The length of time in atmospheric dispersion testing over which...

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An event in a fault tree that represents the lowest level of resolution in...

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Reactor in which all reactants and solvents are introduced prior to setting...

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Sometimes called batch instruction. The operating procedure for making a...

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The perimeter of a specific manufacturing process area. It is often defined...

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Unit of modulation speed corresponding to a unit interval testing one second...

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Technical laboratory scale (typically between 0.1 and 5 dm3), more...

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A point of reference from which measurements may be made or from which other...

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A device or system that is comprised of preferably production components,...

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An in-line flame arrester is considered to be bidirectional if:

    ...
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Either of the "characters" of the "character set" consisting of two...

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A code consisting of the numbers 0 and 1. Can be easily represented in a...

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A numerical representation in which each decimal digital is represented by a...

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Either of the "digits" o and 1 when it is used in the "pure binary...

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The amount of dissolved oxygen in water, given in lbs. (kgs) or % that is...

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  • An abbreviation for binary digit.
  • A single character in a binary...
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    A transient change in the gas density, pressure, and velocity of the air...

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    Buildings that are structurally designed to withstand an explosion generated...

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    The narrow pressure pulse transmitted by an explosion.

    The overpressure wave traveling outward from an explosion point. (CCPS, 1996...

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    A Boiling Liquid Expanding Vapor Explosion is a blast resulting from the...

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    A type of rapid phase transition in which a liquid contained above its...

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    A simplified drawing representing a process. It typically shows major...

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    Separators or accumulators used to separate liquids and vapors in pressure-...

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    A violent expulsion of contents caused by a heat wave from the surface...

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    A type of rapid phase transition in which a liquid contained above its...

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    The process of connecting two or more conductive objects together by means...

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    The process of connecting two or more conductive objects together by means...

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    That branch of mathematics describing the behavior of linear functions of...

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    A small number of incidents selected to bracket the spectrum of possible...

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    (Basic Process Control System) - The control equipment which is installed to...

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    The minimum voltage for spark breakdown to occur across a material of given...

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