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NFPA 257: Standard on Fire Test for Window and Glass Block Assemblies
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NFPA 257: Standard on Fire Test for Window and Glass Block Assemblies NFPA 257: Standard on Fire Test for Window and Glass Block Assemblies
Make sure windows and glass blocks don't contribute to fire spread by following the testing provisions in the latest NFPA 257.
Item #: NFPA_257

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