CCPS Process Safety Glossary

Depending on the context, oxidation can either refer to (a) a reaction in...

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Any material that readily yields oxygen or other oxidizing gas, or that...

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Any material that readily yields oxygen or other oxidizing gas, or that...

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A chemical or substance which brings about an oxidation reaction. The agent...

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A gas that can support and accelerate combustion of other materials.

A quantity describing the relation of variables within a given system. Note...

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An error detection method in which that total number of ones in a binary...

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A binary digit appended to an array of bits to make the sum of all the bits...

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The combination of oxygen with a material in an oxygen-deficient atmosphere...

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A deflagration explosion developed from a flammable cloud of gas, aerosol,...

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Dispersion caused by the normal turbulence in the atmosphere. See Gaussian...

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Refers to hardware which is not physically actuated in order to perform its...

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A gas whose density is equal to that of the ambient air. Synonymous with...

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A system in which failures are only revealed by testing or when a demand has...

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A series of informal reviews by, and at the discretion of, individual...

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Permissible Exposure Limit; an exposure established by OSHA regulatory...

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Any factor that influences human performance. It may be external (heat,...

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Catalogued Device internal or external to the Permanent PES, the function of...

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A peripheral which is part of the permanent installation of the PES.

Peripheral specifically designed to be carried by hand.

Peripheral which is not a permanent part of the installation and which is...

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The portion of the PES which must be present to perform the intended...

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Similar to TLVs (see below) but developed by the Occupational Safety and...

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An action required before a subsequent action can take place.

The property of a material determining its ability to store energy when...

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A constant equal to 8.854 ¥ 10–12 F/m.

A chemical compound that contains the peroxy (–O–O–) group, which may be...

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A material that reacts with oxygen or hydrogen peroxide to produce a...

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A system based on a computer connected to sensors and/or actuators (in) a...

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Synonymous with Application Program.

PFD

Probability of failure on demand. The probability that a system will fail to...

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PFR

Plug Flow Reactor; A tube reactor to one end of which the reactants are...

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PHA

Process hazards analysis

PHA

Process hazard analysis. A hazard evaluation of broad scope that identifies...

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A task to be performed by a system, during the execution of which the system...

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A correction factor which is based on the ratio of the total heat capacity...

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