CCPS Process Safety Glossary

The minimum temperature that a mass of material, capable of an exothermic...

Read More...

Certain compounds, such as organic peroxides, when held at moderate ambient...

Read More...

The ignition and sustained combustion of a substance without introduction of...

Read More...

Capable of polymerization, decomposition or rearrangement. Initiation of the...

Read More...

Possessing a conductivity between 102 and 104 pS/m or a resistivity between...

Read More...

Having an electrical resistance great enough to limit the flow of stray...

Read More...

A gas that is much more likely to cause a failure in a flame arrester test...

Read More...

The sensitivity of a measure to a parameter is defined as the change in the...

Read More...

A substance which on first exposure causes little or no reaction in man or...

Read More...

Means accessible only to plant personnel responsible for the proper...

Read More...

An arrangement of control devices, wiring, or software programming such that...

Read More...

Automatic control of a series of operations in a predetermined order.

... Read More...

A control system in which the individual steps are processed in a...

Read More...

A graphical representation of a Sequential Program consisting of...

Read More...

A plan which prescribes the actions on a system in a predetermined order and...

Read More...

A system wherein the bits of a character occur serially in time, implies...

Read More...

The classification for an occupational injury which includes: (a) all...

Read More...

A dispersion model capable of predicting flows in variable terrain by using...

Read More...

Physical protection (such as an enclosed building) against the outcome of an...

Read More...

See Detonation Momentum Attenuator.

A relatively unstable material, the energeticdecomposition of which can be...

Read More...

A transient change in the gas density, pressure, and velocity of the air...

Read More...

A material added to a reaction mixture to stop or greatly reduce the...

Read More...

For exposures whose occurrence is expected to be rare in the lifetime of any...

Read More...

A process by which an operating plant or system is brought to a safe and...

Read More...

The level of overpressure in the pressure wave from an explosion measured...

Read More...

Reciprocal ohm, formerly termed a “mho.” See “Conductivity.”

Amodel of flow or dispersion where the key variables are scaled by...

Read More...

A mode of operation of solid state output devices in which the device...

Read More...

The process of locating a complex, site, plant, or unit.

The performance of more or less subconscious routines governed by stored...

Read More...

A notation, sometimes used with PEL or TLV exposure date; indicates that the...

Read More...

or the nondimensional local surface shear stress coefficient. The...

Read More...

See "Sensitizer".

See "Dermal Toxicity".

A dense gas dispersion model based on the slab solutions (Ermak, 1990).

Pages