Smoke leakage (S): Failure of this criterion shall have transpired In case the move rate in duct A through the examination exceeds 10 m³ / (m² h), linked to 20 °C and 1013 mbar, linked to The interior surface area location with the duct Within the furnace. The BIP E-newsletter https://kyleryqfsg.yomoblog.com/43690961/how-fire-rated-ductworth-can-save-you-time-stress-and-money