This course is designed to provide an overview of the requirements of clean agent retention time for gaseous clean agent systems.  This course will describe what the Blower Door Fan Test is, how it is performed, common equipment, NFPA 12 and 2001 requirements, pressure relief venting, leakage considerations, how to take measurements, exploration of common ‘hold time’ difficulties, pressure venting design requirements and calculations and common pressure changes during discharge.

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