A pump which is used to deliver air to the aquarium. The pump pushes air through silicon tubing and to air stones or other aquatic decor. They are also an essential for UGF's (undergravel filters). An air stone is placed in each clear tube. When the air b ...

The prescribed level of pollutants allowed in outside or indoor air as established by legislation.

A receptacle which serves to store compressed air for heavy demands in excess of compressor capacity.

The component of a combustion device that regulates the amount of air entering the combustion chamber.

A material or structural element that inhibits air flow into and out of a building's envelope or shell. This is a continuous sheet composed of polyethylene, polypropylene, or extruded polystyrene. The sheet is wrapped around the outside of a house during ...

The area between the layers of glazing (panes) of a window.

A metal air-tight tank built into a boat to insure flotation even when the boat is swamped.

The forwarding agreement or carrying agreement between shipper and air carrier and is issued only in nonnegotiable form.

A type of heat pump that transfers heat from outdoor air to indoor air during the heating season, and works in reverse during the cooling season.

see Air-Source Heat Pump.

A type of heat pump that transfers heat in outdoor air to water for space or water heating.

See Koschmieder's law.

A building architectural element (vestibule) with two airtight doors that reduces the amount of air infiltration and exfiltration when the exterior most door is opened.

A building construction technique used to create a continuous air retarder that uses the drywall, gaskets, and caulking. Gaskets are used rather than caulking to seal the drywall at the top and bottom. Although it is an effective energy-saving technique, ...

Automatic identification system

Association Internationale de Signalisation Maritime (see also IALA).

Technical BulletinsUnits of measurements and conversions..

Technical BulletinsUnits of measurements and conversions..

Technical BulletinsUnits of measurements and conversions..

Technical BulletinsUnits of measurements and conversions..