NFPA 257 窗及玻璃隔断的火灾试验方法
日期:2012-02-10 14:39
NFPA 257 Standard on Fire Test for Window and Glass Block Assemblies
NFPA 257 窗及玻璃隔断的火灾试验方法
1.1 Scope.
1.1.1 This standard prescribes standardized fire and hose stream test procedures that apply to the evaluation of fire window assemblies, including windows, glass block, and other light-transmitting assemblies intended to retard the spread of fire through openings in fire resistancerated walls.
1.1.2 This standard is not to be construed as determining the suitability of fire windo
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