ULC 662
- Standard for Factory-Built Grease Ducts (CAN/ULC S662-09)
- standard by Underwriters Laboratories of Canada, 08/01/2009
- Category: ULC
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Grease ducts covered by this Standard are intended to be installed in a fire rated enclosure when required by the provincial or territorial regulations or bylaws, or in the absence of those requirements by the National Building Code of Canada.
Grease duct assemblies that penetrate fire rated assemblies which do not require the protection of a fire rated enclosure are covered by the requirements contained in CAN/ULC-S144, Standard Method of Fire Resistance Test - Grease Duct Assemblies.
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