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Definition

API 754

American Petroleum Institute Recommended Practice 754: Process Safety Performance Indicators for the Refining and Petrochemical Industries. Tier 1-4 leading and lagging indicators.

Related terms

Attitude Control SystemACS

The subsystem responsible for maintaining and changing the orientation of a spacecraft. Includes sensors (star trackers,...

Apogee

The point in an orbit farthest from the central body. For Earth orbits, the highest altitude above Earth's surface....

Argument of Periapsis

The angle from the ascending node to the periapsis of the orbit, measured in the orbital plane in the direction of motio...

Atomic OxygenAO

Highly reactive oxygen atoms present in the upper atmosphere that erode polymer surfaces on LEO spacecraft. Drives mater...

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