توضیحات :
NFPA 288 – Standard Methods of Fire Tests of Horizontal Fire Door Assemblies Installed in Horizontal Fire Resistance-Rated Assemblies
۲۰۲۲ Edition
Chapter 1 Administration
۱-۱ Scope.
۱-۱-۱ This standard shall apply to horizontal fire door assemblies of various materials and types of construction that are installed in openings of fire resistance-rated floor systems or roofs to retard the passage of fire.
۱-۱-۲ Tests made in conformity with this test method demonstrate the performance of horizontal fire door assemblies during the test exposure; however, such tests shall not be construed as determining the suitability of horizontal fire door assemblies for use after their exposure to fire.
۱-۲ Purpose. This test method develops data used to determine the ability of a horizontal fire door assembly to protect openings in fire resistance-rated floors or roofs.
۱-۳ Application.
۱-۳-۱ This test method evaluates the performance of a horizontal fire door assembly as follows:
(۱) By measuring the ability of the horizontal fire door to remain in an opening and resist the passage of flame and heat during a predetermined test exposure
(۲) By measuring the load-carrying ability of the test specimen during the fire test
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