NFPA 257: Standard on Fire Test for Window and Glass Block Assemblies, 2012 Edition

Make sure windows and glass blocks don't contribute to fire spread by following the testing provisions in the 2012 NFPA 257.

NFPA 257: Standard on Fire Test for Window and Glass Block Assemblies prescribes fire and hose stream test procedures that apply to fire window assemblies -- including window, glass block, and other light-transmitting assemblies -- intended for use in window openings to retard the spread of fire through openings in fire-resistive walls. It establishes controls of the fire test as well as performance criteria and results for reporting procedures.

NFPA 257 is referenced by NFPA 101®: Life Safety Code® when being used to set up a window fire resistance rating in a fire rated wall assembly. Essential for testing laboratories and manufacturers, the 2012 Standard edition contains updated references to ensure you're working with the latest information. (Softbound, Approx. 13 pp., 2012)