General Definitions Flashcards
Understand general terminology
3.3.2 Active Leaf
The first operating door of a pair, which is usually the door in which a lock is installed.
3.3.5.1 Overlapping Astragal
A horizontal or vertical molding attached to one leaf of a pair of doors.
3.3.5.1 Split Astragal
A horizontal or vertical molding attached to both leaves of a pair of doors.
3.3.6 Automatic-Closing Device
A device that causes a door or window to close when activated by a fusible link or detector.
3.3.7 Automatic Closing Door
A door that is normally open but closes when the automatic-closing device is activated.
3.3.26 Closing Device
A means of closing a door from the partially or fully open position. (No faster than 3 seconds)
3.3.30 Coordinator
A device used on a pair of swinging doors that prevents the active leaf from closing before the inactive leaf closes.
3.3.39 Door Closer (swinging)
A labeled device that, where applied to a door and frame, causes an open door to close by mechanical force. The closing speed can be regulated by this device.
3.3.40 Door Holder/Release Device
A labeled, fail-safe device, controlled by a detection device, used on an automatically closing door to release the door at the time of fire.
3.3.42 Door Protection Plate
Protective material applied to the face of a door and generally made of approximately 0.05 in. (1.2 mm) thick brass, bronze, aluminum, or stainless steel or 1/8 in. (3.2 mm) thick laminated plastic.
3.3.45 Double Egress Door
A pair of swing doors, each leaf of which swings in the opposite direction of each other.
3.3.46* Field Modifications
Changes, not otherwise permitted by this standard, made to a listed assembly or component after it has been manufactured.
3.3.48 Egress Side
The side of an opening from which traffic exits.
3.3.52 Fire Door
The door component of a fire door assembly.
3.3.53 Fire Door Assembly
Any combination of a fire door, a frame, hardware, and other accessories that together provide a specific degree of fire protection to the opening.
3.3.54 Fire Door Frame
A component forming the perimeter of an opening in a fire door assembly that is supplied welded or knocked down and anchored to the surrounding structure.
3.3.55 Fire Door Frame for Lights
A frame that, in addition to a door opening, contains an opening(s) for use with glazing materials.
3.3.58 Fire Exit Hardware
Labeled devices for swinging fire doors installed to facilitate safe egress of persons and generally consisting of a cross bar and various types of latch mechanisms that cannot hold the latch in a retracted locked position. (Half the width of door required.)
3.3.68 Flush Bolts
Automatic and Manual
3.3.68.1 Automatic Flush Bolts
A mortised bolt installed near the top or bottom of the inactive leaf of a pair of doors that holds the inactive leaf in a closed position until the active leaf is opened.
3.3.68.2 Manual Flush Bolts
A mortised bolt installed near the top or bottom of the inactive leaf of a pair of doors in which the bolts are manually extended or retracted into or out of the header or sill by means of a lever.
3.3.71 Glazing Material
A transparent or translucent material used in fire door assemblies and fire windows.
3.3.79 Hollow Metal Frame
A framed formed of sheet metal.
3.3.80 Inactive Leaf
One door of a pair of doors that ordinarily is latched closed; the second operating door of a pair.
