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Outlet Boxes for Use in Fire Rated Assemblies 1 For more information visit www.ul.com Controlling spread of fire or products of combustion Section 300.21 of the National Electrical Code ® (NEC ) covers
Copyright © 2006 Underwriters Laboratories Inc. Design No. U419 Nonbearing Wall Ratings — 1, 2, 3 or 4 Hr (See Items 3 &4) 1. Floor and Ceiling Runners — (Not shown) — Channel shaped, fabricated from min 25 MSG
Aggrega te Type Pumice Fxpanded Slag Expanded Shale. Clay and Slate Cinder Calcareous Gravel Siliceous *Nonbearing TABLE 2 Fire Tests—Masonry Walls
A Tradition of Innovation Westbrook Concrete Block Co., Inc. 439 Spencer Plains Road Westbrook, CT 06498 t.860.399.6201 firstname.lastname@example.org
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