What is an ABOVE-GROUND STORAGE TANK?
A vessel for bulk storage, dispensing, handling, or processing hazardous, flammable, or combustible liquids or gases, intended for fixed installation above grade, at grade, or below grade without backfill
Not connected to and utilized for the operation of building service equipment.
Define ACCEPTED ENGINEERING PRACTICE.
Conforms to accepted principles, tests, or standards of nationally recognized technical or scientific authorities
Conformity to applicable technical provisions is prima-fascia evidence of conformity.
What does ACCESS (TO) refer to?
Enables a fixture, appliance, or equipment to be reached by ready access or by removing a panel or obstruction
See ‘Ready access’.
What is an ACCESS COVER?
A removable plate, usually secured by bolts or screws, to permit access to a pipe or pipe fitting for inspection, repair, or cleaning
Essential for maintenance of plumbing systems.
What does ACCESSIBLE mean in the context of plumbing?
A site, building, facility, or portion thereof that complies with Chapter 11 of the building code
Ensures compliance with accessibility standards.
What is an ADAPTER FITTING?
An approved connecting device that joins or adjusts pipes and fittings that do not otherwise fit together
Essential for proper plumbing connections.
Define AIR ADMITTANCE VALVE.
One-way valve that allows air to enter the plumbing drainage system when negative pressures develop
Closes by gravity and seals the vent terminal at zero differential pressure.
What is an AIR BREAK in a drainage system?
A piping arrangement where a drain discharges indirectly into another fixture at a point below the flood level rim and above the trap seal
Prevents backflow and contamination.
Define AIR GAP in a drainage system.
The unobstructed vertical distance through the free atmosphere between the outlet of the waste pipe and the flood level rim of the receptacle
Ensures proper drainage and prevents backflow.
What does AIR GAP refer to in a water distribution system?
The unobstructed vertical distance between the lowest opening from any pipe or faucet supplying water and the flood level rim of the receptacle
Critical for preventing contamination.
What is ALTERNATE ON-SITE NONPOTABLE WATER?
Nonpotable water from sources other than public utilities, including graywater, reclaimed water, and collected rainwater
Regulated by the Ohio Department of Health.
Define ALTERNATIVE ENGINEERED DESIGN.
A plumbing system that performs in accordance with the intent of Chapters 3 through 12 and provides equivalent performance for public health, safety, and welfare
See Section 106.5 of the building code.
What are ANCHORS in plumbing?
Supports used to secure pipes and fixtures in place
Essential for maintaining system integrity.
What does ANTISIPHON refer to?
Valves or mechanical devices that eliminate siphonage
Prevents backflow and contamination.
What does APPROVED mean in plumbing terminology?
Determined to be in compliance by the authority having jurisdiction
Ensures adherence to plumbing codes.
What is an APPROVED AGENCY?
An established and accredited testing laboratory or inspection body recognized by the board of building standards
Provides services consistent with their accreditation.
What is an AREA DRAIN?
A receptacle designed to collect surface or storm water from an open area
Essential for managing water runoff.
Define BACKFLOW.
Pressure in the water distribution system that causes a potential backflow condition
Can lead to contamination of the water supply.
What is Backpressure?
A pressure less than or equal to 4.33 psi (29.88 kPa) or the pressure exerted by a 10-foot (3048 mm) column of water
Important for understanding plumbing system dynamics.
