September 2024 | AIChE

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September 2024

Acute Effect

An adverse effect on a human or animal body, with severe symptoms developing rapidly and coming quickly to a crisis. See also, "Chronic". Importance: How much and how long one is exposed to a chemical is the critical factor to how adverse the health effects will be.

Acute

A single, short-term exposure (less than 24 hr)

Active System

A system in which failures during normal operations are detected immediately.

Active Equipment

Denotes physical motion or activity in the performance of the equipment's function, as with rotating machinery.

Action Tracking

A method of logging progress when implementing a task or set of tasks.

Accident-Initiated Event

An event (or the first event in an event sequence) that is caused by a movement-related transportation accident, such as a train derailment or a barge grounding.

Accidental Chemical Release

An unintended or sudden release of chemical(s) from manufacturing, processing, handling, or on-site storage facilities to the air, water, or land.

Accident Prevention Pillar

A group of mutually supporting RBPS elements. The RBPS management system is composed of four accident prevention pillars: (1) commit to process safety, (2) understand hazards and risk, (3) manage risk, and (4) learn from experience.

Accident

For Laboratories: An event that can cause (or has caused) harm to workers and property within the laboratory facility. For Industry: An event that can cause (or has caused) significant harm to workers, the environment, property, and the surrounding community. See Incident.

Acceptance criteria

Technical basis used to determine whether equipment is deficient (e.g., when analyzing inspection, testing, and preventive maintenance [ITPM] results).

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