September 2024 | AIChE

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September 2024

Asset Integrity Management (AIM)

A process safety management system for ensuring the integrity of assets throughout their life cycle.

Asset Integrity and Reliability

CCPS RBPS Element 10: This Element helps ensure that equipment is properly designed, fabricated, installed, commissioned, and maintained during its useful life.

Asset integrity

The condition of an asset that is properly designed and installed in accordance with specifications and remains fit for purpose.

Asset Category

Assets may be categorized in many ways, including people, chemicals, information, environment, equipment, facilities, and activities/operations.

Asset

A process area or facility involved in the use, storage, manufacturing, handling, or transport of chemicals. The equipment, such as vessels, piping systems, controls, safety systems, utilities, structures and other elements in the process area or facility.

Asphyxiant

A vapor or gas which can cause unconsciousness or death by suffocation (lack of oxygen). Most simple asphyxiants are harmful to the body only when they become so concentrated that they reduce oxygen in the air (normally about 21%) to dangerous levels (19.5% or lower). Importance: Asphyxiation is...

As Low As Reasonably Practicable

See ALARP

Approved Independent Safety Layer (AISL)

Is one layer of a system or subsystem considered adequate protection, in whole or in part, against a specific hazard. An AISL: Is generally one of a number of AISL required as protection against a specific hazards. Cannot be contaminated by the failure of another AISL. Is totally independent of any...

Apportionment

The subdividing of a risk criterion among a number of risk sources (for example, among all process units at an operating site). The concept of risk apportionment can apply to both individual and societal risk, but at different levels in the enterprise.

Appearance and Odor

The physical properties of a chemical, such as color and smell. Importance: Knowing what chemicals look and smell like allows an employee to recognized unsafe working conditions.

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