September 2024 | AIChE

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September 2024

Common Cause or Common Mode Failure

Failure, which is the result of one or more events, causing coincident failures in multiple systems or on two or more separate channels in a multiple channel system, leading to system failure. The source of the common cause failure may be either internal or external to the systems affected. Common...

Common Cause Failure (CCF)

The failure of more than one component, item, or system due to the same cause.

Common Cause Failure

Concurrent failures of different devices, resulting from a single event, where these failures are not consequences of each other.

Common cause failure

The occurrence of two or more failures that result from a single event or circumstance.

Commit to Process Safety

CCPS RBPS Pillar I: Its five Elements represent authentic management commitment to process safety, including nurturing the workforce through strong leadership and process safety activities.

Combustion

An exothermic reaction between a fuel and an oxidizer (usually but not necessarily oxygen) that results in a significant temperature rise and usually a visible flame or glow.

Combustible Liquid

A term used to classify certain liquids that will burn on the basis of flash points. The National Fire Protection Association (NFPA) defines a combustible liquid as any liquid that has a closed-cup flash point above 100 degF (37.8 degC) (NFPA 30). There are three subclasses, as follows; Class II...

Combustible Dust

A finely divided combustible particulate solid that presents a flash fire hazard or explosion hazard when suspended in air or the process specific oxidizing medium over a range of concentrations.

Combustible Concentration

Reduction The technique of maintaining the concentration of combustible material in a closed space below the lower flammable limit. This is also called Air Dilution.

Combustible

Capable of burning.

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