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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.
Standard for Thermal Insulation, Polystyrene Boards (ULC S701.1)standard by Underwriters Laboratories of Canada, 02/25/2022
STANDARD FOR 650 °C FACTORY-BUILT CHIMNEYSstandard by Underwriters Laboratories of Canada, 04/07/2022
Standard for Factory-Built Type A Chimneysstandard by Underwriters Laboratories of Canada, 04/07/2022
Standard for Fireplace Inserts (ULC S628)standard by Underwriters Laboratories of Canada, 04/07/2022