Smoke leakage (S): Failure of this criterion shall have occurred Should the movement fee in duct A during the exam exceeds 10 m³ / (m² h), connected with twenty °C and 1013 mbar, related to The interior floor space of the duct inside the furnace. Completely encapsulated in aluminium foil https://ductworth-installation78990.blogoxo.com/36793977/ductworth-installation-options