NFPA 288 Standard Methods of Fire Tests of Horizontal Fire Door Assemblies Installed in Horizontal Fire Resistance-Rated Assemblies
NFPA 288在抗火层内水平安装的防火门的标准测试方法

NFPA 288防火门耐火测试
1.1.1 This standard shall apply to floor fire door assemblies of various materials and types of construction that are installed horizontally in openings of fire resistance–rated floor systems to retard the passage of fire.

1.1.2 Tests made in conformity with this test method demonstrate the performance of floor fire door assemblies during the test exposure. However, such tests shall not be construed as determining the suitability of floor fire door assemblies for use after their exposure to fire.

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