Smoke leakage (S): Failure of the criterion shall have transpired When the movement rate in duct A during the exam exceeds ten m³ / (m² h), connected with 20 °C and 1013 mbar, connected to the internal floor spot with the duct Within the furnace. Retrieved 10 January 2020. Early https://fireratedinsulationforduc35567.blogdosaga.com/36758497/facts-about-fire-rated-ductworth-revealed