Smoke leakage (S): Failure of this criterion shall have transpired In the event the move amount in duct A through the take a look at exceeds ten m³ / (m² h), linked to 20 °C and 1013 mbar, associated with The inner surface area of the duct inside the furnace. https://gregoryyqgui.blog2freedom.com/36868232/facts-about-fire-rated-ductworth-revealed