Smoke leakage (S): Failure of this criterion shall have occurred When the flow rate in duct A during the exam exceeds ten m³ / (m² h), connected with 20 °C and 1013 mbar, related to The inner surface area spot in the duct inside the furnace. Smoke extraction ducts are https://raymondcvjym.thelateblog.com/37389901/fire-rated-ductworth-an-overview