ORGANIZATIONS, TERMS & INSTITUTIONS

Aboveground Storage Tank – a horizontal or vertical tank, listed and intended for fixed installation without backfill above or below grade and used within the scope of its approval or listing.

AHJ (Authority Having Jurisdiction) – organization, office or individual responsible for approving equipment, materials, installations and procedures.

ANSI (American National Standards Institute) – organization charged with overseeing the development of standards for products, services, processes, systems and personnel in the United States.

Baffle – an object placed in an appliance to change the direction of or retard the flow of air, air-gas mixtures, or flue gases.

BLEVE – boiling liquid expanding vapor explosion.

Breathing Air System – a complete assembly of equipment to compress, store, and deliver breathing air for the filling of respirator breathing air cylinders.

Line Gas Regulator – pressure regulator placed in a gas line between the service regulator and the appliance regulator.

UL – Underwriters Laboratories, a certification authority for many appliances and systems associated with fire protection.

Waterflow Detector – a device that detects the flow of water in a deluge system.