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Fictional metal, used by the residents of Asgard. Has the unique properties of being both highly durable and able to hold enchantments. It has been noted that only a god can safely apply permanent enchantments. Uru's durability makes it nigh-impossible to work with, requiring either the heart of a star or an enchanted forge.
Fire-retardant materials should not be confused with fire-resistant materials. A fire resistant material is one which is designed to resist burning and withstand heat. An example of a fire-resistant material is one which is used in bunker gear worn by firefighters to protect them from the flames of a burning building.
Fire resistance (ecology), a quality of plants that are harmed but not killed by fire; Fire retardant, a substance used to slow down or stop the spread of fire or reduce its intensity; Fireproofing, a passive fire protection method Fire-resistance rating, an indication of the ability for a passive fire protection system to withstand a standard ...
Fireproofing is rendering something (structures, materials, etc.) resistant to fire, or incombustible; or material for use in making anything fire-proof. [1] It is a passive fire protection measure. "Fireproof" or "fireproofing" can be used as a noun, verb or adjective; it may be hyphenated ("fire-proof").
The Life Safety Code (NFPA 101) [5] and Section 803.1 of the International Building Code limit finishes for interior walls and ceilings to materials in three classes (A, B, or C, with A being the lowest flame spread and C being the highest) and gives greater restrictions for certain rooms:
Fire retardants are available as powder, to be mixed with water, as fire-fighting foams and fire-retardant gels. Fire retardants are also available as coatings or sprays to be applied to an object. [3] Fire retardants are commonly used in fire fighting, where they may be applied aerially or from the ground.
Depending on the fire conditions, applied fire retardant gels offer fire protection for periods of 6 to 36 hours. [ 11 ] After the retained water is completely evaporated from a gel, fire resistance is lost, but can be restored by re-wetting the surface if gel material is still adherent.
Typically, their undergarments beneath the heavier fire-resistant gear are made of flame-retardant cotton or another breathable, organic fabric that has been treated to resist ignition. [ 20 ] Polymers containing nitrogen , sodium , and phosphorus atoms can work as materials for fire-resistant cellulosic textiles, such as cotton or rayon .