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ULC 112.2 Standard Method of Fire Test of Ceiling Firestop Flap Assemblies (CAN/ULC S112.2-07)
standard by Underwriters Laboratories of Canada, 10/01/2007
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View contents.These requirements cover the test procedure for the performance evaluation of ceiling firestop flap assemblies which may or may not be part of an air diffusion device, intended for use in fire resistive floor-ceiling and roof-ceiling assemblies.