CCPS Process Safety Glossary

Download the CCPS Glossary App

iTunes | Google 

A fluid in the liquid state composed predominantly of methane and that can...

Read More...

Any material having a vapor pressure not exceeding that allowed for...

Read More...

A device for preventing the passage of flame by passing the gas mixture...

Read More...

a vaccine that stimulates an immune response by using a non-disease-causing...

Read More...

A system for capturing and exhausting contaminants from the air at the point...

Read More...

Friction velocity measured at a local position (height) based on the local...

Read More...

An incident whose effect zone is limited to a plant area (e.g., pump fire,...

Read More...

Individual risk calculated for a particular geographical location,...

Read More...

A safe work practice in which energy sources are positively blocked away...

Read More...

A control system in which definite output signal states are functions of the...

Read More...

A logical relationship between input (lower) events and the single output (...

Read More...

A group of interconnected logic elements that act in combination to perform...

Read More...

See "Spacing Table Approach"

Continuous flow reactors that are characterized by the fact that part of the...

Read More...

Point in time in an abnormal situation when an irreversible physical event...

Read More...

An unplanned or uncontrolled release of material from primary containment,...

Read More...

A storage tank designed to withstand an internal pressure above 0.5 psig but...

Read More...

That concentration of a combustible material in air below which ignition...

Read More...

The lowest exposure concentration at which there are statistically and...

Read More...

Any of about 200 varieties of club moss. The commonest is the staghorn moss...

Read More...

The ratio of the speed of a flame or blast wave to the speed of sound at...

Read More...

An assembler that brings high-level language features to assembly language...

Read More...

The portion of the PES which interprets or executes the (main part of the)...

Read More...

Probability that a system survives a fault without erroneous output.

An incident whose effect zone, while significant, is still limited to site...

Read More...

The means by which human interaction with the control system is accomplished...

A system in which the functions of the worker and the machine are...

Read More...

A manufacturer's Catalogued Peripheral equipped with push buttons, lamps,...

Read More...

A management system to identify, review, and approve all modifications to...

Read More...

A PSM program element that provides for the routine evaluation of other PSM...

Read More...

A formally established set of activities designed to produce specific...

Read More...

Device setting action (in control)/device carrying out action. A mode of...

Read More...

The feature ensuring the protection of each program when more than one...

Read More...

A system of interlinked computers under the control of one computer (master...

Read More...

A mass of bulk solids or powders in a rotary valve or screw feeder that...

Read More...

The name of a chemical. It may be a trade name, chemical name or any other...

Read More...

Pages