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Fire Integrity Test NFPA (U.S.)

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An Integrity test predicts how long fire suppressant agents take to descend to a given level in the room without having to release the agent itself.

The system is setup in an available doorway. The protected area is then pressurised and the fan flow readings are taken, then to check those measurements the room is depressurised to take measurements to compare. The predicted retention time is calculated from the leakage characteristics and the enclosure and extinguishing system data.

Reference : https://retrotec.com/vic-engineering-sdn-bhd