// CODE SNIPPET
453.4.7.2 Fire Dampers, Smoke Dampers and Combination Fire/Smoke Dampers
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Fire dampers, smoke dampers or fire/smoke dampers shall not be permitted in product conveying and other mechanical exhaust duct systems used to maintain a safe laboratory environment. When the exhaust duct penetrates the laboratory suite boundary the exhaust duct shall be located within a horizontal assembly having a fire resistance rating equal to the fire barrier.
Related Code Sections
453.4.7.2 Special Detailed Requirements Based on Use and Occupancy, Fire Dampers, Smoke Dampers and Combination Fire/Smoke Dampers
Fire dampers, smoke dampers or fire/smoke dampers shall not be permitted in product conveying and other mechanical exhaust duct systems used ...
California Building Code 2016 (Vol 1 & 2) > 4 Special Detailed Requirements Based on Use and Occupancy > 453 Group L [SFM] > 453.4 Construction > 453.4.7 Ventilation > 453.4.7.2 Fire Dampers, Smoke Dampers and Combination Fire/Smoke Dampers
453.4.7.2 Special Detailed Requirements Based on Occupancy and Use, Fire Dampers, Smoke Dampers and Combination Fire/Smoke Dampers
Fire dampers, smoke dampers
or fire/smoke dampers shall not be permitted in
mechanical exhaust duct systems used to maintain a
safe laboratory ...
California Building Code 2019 (Vol 1 & 2) > 4 Special Detailed Requirements Based on Occupancy and Use > 453 Group L [SFM] > 453.4 Construction > 453.4.7 Ventilation > 453.4.7.2 Fire Dampers, Smoke Dampers and Combination Fire/Smoke Dampers
717.2 Fire and Smoke Protection Features, Installation
Fire dampers, smoke dampers, combination fire/smoke dampers and ceiling radiation dampers located within air distribution and smoke control systems ...
California Building Code 2016 (Vol 1 & 2) > 7 Fire and Smoke Protection Features > 717 Ducts and Air Transfer Openings > 717.2 Installation
717.2 Fire and Smoke Protection Features, Installation
Fire dampers, smoke dampers, combination fire/smoke dampers and ceiling radiation dampers located within air distribution and smoke control ...
California Building Code 2019 (Vol 1 & 2) > 7 Fire and Smoke Protection Features > 717 Ducts and Air Transfer Openings > 717.2 Installation
717.3 Fire and Smoke Protection Features, Damper Testing, Ratings and Actuation
Combination fire/smoke dampers shall comply with the requirements of both UL 555 and UL 555S. Ceiling radiation dampers shall comply ...
California Building Code 2019 (Vol 1 & 2) > 7 Fire and Smoke Protection Features > 717 Ducts and Air Transfer Openings > 717.3 Damper Testing, Ratings and Actuation