September 2024 | AIChE

Other Sites & Tools

Technical Groups

You are here

September 2024

Operational Discipline (OD)

The performance of all tasks correctly every time. Individuals demonstrate their commitment to process safety through OD, executing the organization's Conduct of Operation (COO) RBPS Element each and every day.

Operating Window

The parameters (i.e., safe upper and lower limits, run time) under which equipment can function without failure.

Operating Procedures

Written, step by step instructions and information necessary to operate equipment, compiled in one document including operating instructions, process descriptions, operating limits, chemical hazards, and safety equipment requirements.

Operating Procedures

CCPS RBPS Element 08: This Element ensures proper development, upkeep, and consistent use of the procedures required to operate the processes safely.

Operating Pressure

The maximum pressure at which a flame arrester can be used according to its certification.

Operating Mode

A phase of operation during the operation and maintenance stages of the life cycle of a facility. Operating modes include start-up, normal operation, shutdown, product transitions, equipment cleaning and decontamination, maintenance, and similar activities.

Operating Limits

The values or ranges of values within which the process parameters normally should be maintained when operating. These values are usually associated with preserving product quality or operating the process efficiently; however, they may also incorporate the safe upper and lower limits of the...

Operating Instructions

A series of sequential written details describing how to operate equipment.

On-Stream Factor

The fraction of the time that a process unit is operating

On-Site Personnel

Employees, contractors, visitors, service providers, and others present at the facility.

Pages