These requirements and methods of test apply to fire damper assemblies rated 3/4 h, 1 h, 1 1/2 h, 2 h, or 3 h for use in air-conditioning and ventilating system ducts or openings (without ducts) piercing horizontally or vertically oriented fire separations where the fire separations are required to have a fire resistance rating of not more than 4 h.
Original price was: $184.00.$92.00Current price is: $92.00.
Standard Methods of Fire Test of Fire-Damper Assemblies (CAN/ULC S112-10)
Underwriters Laboratories of Canada , 06/01/2010
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