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Contains classifications in effect as of December 11, 2009
See Volume 1 for Hourly Ratings for Beams, Floors, Roofs, Columns, Walls and Partitions
See Volume 3 for Hourly Ratings for Dampers, Fire Doors, Glazing Materials and Related Equipment
Please read information contained in paragraph 2 on page v and the number system table for fire rated assemblies on page 1 in volume 1
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