Swegon: Demystifying Fire Damper Classifications

2024-05-26
Approved Document B defines Fire Resistance as the ability of a component or a building to satisfy, for a stated period of time, some or all of the appropriate criteria given in the relevant standard. The resistance is a measure of certain criteria such as resistance to fire penetration, and is measured in minutes. The Fire Resistance is defined in the classification report which is issued by a third party (notified or approval body), and is based on testing that has been conducted against the relevant test standards. There are specific standards that cover classifications for different types of products. 
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