On July 1, 2002, damper manufacturers were required to provide fire, smoke and combination fire/smoke dampers that are tested to new Underwriters Laboratories (UL) testing requirements.
On July 1, 2002, damper manufacturers were required to provide fire, smoke and combination fire/smoke dampers that are tested to new Underwriters Laboratories (UL) testing requirements. A description and summary of these new test standards and some possible issues resulting from these standards is given in this paper.
Test Standards for Fire, Smoke and Combination Fire/Smoke Dampers
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Technical Standards
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