CCPS Process Safety Glossary

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A flame arrester used to prevent the transmission of a detonation.

A mechanical device inside of a detonation flame arrester whose purpose is...

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A process condition outside of established design limits, safe operating...

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Part of a Programmable Electronic System.

See Pretrip Alarm.

A troubleshooting aid for identifying hardware malfunctions in a system or a...

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A troubleshooting aid for correcting hardware malfunctions in a system or a...

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A troubleshooting side for locating hardware malfunctions in a system or a...

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A troubleshooting aid for identifying hardware malfunctions in a system or a...

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A troubleshooting aid for locating hardware malfunctions in a system or a...

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Computer programs that isolate equipment malfunctions or programming errors...

An electronic-computer routine designed to locate a malfunction in the...

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A frequent (in relation to the process safety time) automatic test to reveal...

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A dimensionless parameter expressing the ratio of the permittivity of a...

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A technique in which the difference in energy inputs into a substance and a...

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A technique in which the temperature difference between a substance and...

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Any programmable electronic system such as a PLC, DCS, or microcomputer.

An embankment or wall built to act as a barrier blocking passage of liquids...

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Reduction in concentration due to effect of wind.

An address that designates the storage location of an item of data to be...

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A method of addressing in which the address part of an instruction contains...

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A mode of control wherein digital computer outputs are used to directly...

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An incident outcome whose consequences produce an effect zone determined by...

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Probability in a given wind direction.

Within the context of Operational Discipline (OD), discipline refers to; 1)...

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See Connect.

Refers to individual, distinct things such as bits, characters, or circuit...

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Inputs that accept on/off signals form limit switches, push buttons, and...

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The standard deviation s in a specified direction of the Gaussian...

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σ y (lateral component), σ z (vertical component), and...

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A technique that can be used to confirm that the residual or converted...

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Mathematical models that characterize the transport of toxic/flammable...

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A scaling length that becomes important for describing the wind profile at...

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Recirculation zones adjacent to buildings or other obstacles where the flow...

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A chemical reaction in which a single compound serves as both oxidizing and...

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See Effective Conductivity.

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