NFPA 80-2019 Standard for Fire Doors and Other Opening Protectives

NFPA 80-2019 Standard for Fire Doors and Other Opening Protectives. 3.3.7* Automatic-Closing Door. A door that normally is open but that closes when the automatic-closing device is activated. 3.3.8 Automatic Fire Detector. A device designed to detect the presence of a fire signature and to initiate action. For the purpose of this standard, automatic fire detectors are classified as follows: Automatic Fire Extinguishing or Suppression System Operation Detector, Fire–Gas Detector, Heat Detector, Other Fire Detectors, Radiant Energy–Sensing Fire Detector, and Smoke Detector. [72, 2019] 3.3.9 Automatic Louver. An opening in a door with a series of slats or blades to allow passage of air and designed to close automatically in the event of fire. 3.3.10 Automatic Top and Bottom Bolts. See 3.3.68.1, Auto‐ matic Flush Bolts. 3.3.11 Barrel. A cylindrical horizontal member at the head of the opening that supports the door curtain of a rolling steel door and contains the counterbalance springs. Δ 3.2.7 Standard. An NFPA Standard, the main text of which contains only mandatory provisions using the word “shall” to indicate requirements and that is in a form generally suitable for mandatory reference by another standard or code or for adoption into law. Nonmandatory provisions are not to be considered a part of the requirements of a standard and shall be located in an appendix, annex, footnote, informational note, or other means as permitted in the NFPA Manuals of Style. When used in a generic sense, such as in the phrase “standards development process” or “standards development activities,” the term “standards” includes all NFPA Standards, including Codes, Standards, Recommended Practices, and Guides. 3.3 General Definitions. 3.3.1 Access Door. A door assembly, for installation in fire resistance–rated walls or for installation in ceilings of fire resist‐ ance–rated floor–ceiling or roof–ceiling assemblies, that is used to provide access to shafts, chases, attics, spaces above ceilings, or other concealed spaces. 3.3.1.1 Horizontal Access Door. 3.3.54 Fire Door Hardware. Door hardware furnished for swinging and sliding fire doors by the door manufacturer as a component part of the listed door assembly. 3.3.55 Fire Exit Hardware. Labeled devices for swinging fire doors installed to facilitate safe egress of persons and generally consisting of a crossbar and various types of latch mechanisms that cannot hold the latch in a retracted locked position. 3.3.56* Fire Protection Glazing. Glazing that has a fire protec- tion rating. 3.3.57 Fire Protection Rating. For the purposes of this...