Smoke leakage (S): Failure of this criterion shall have transpired Should the movement amount in duct A during the examination exceeds ten m³ / (m² h), related to twenty °C and 1013 mbar, connected to the internal surface area place of the duct inside the furnace. Oxygen: Oxygen within the https://caswell-group25689.full-design.com/not-known-facts-about-fire-resistant-ductworth-isntallers-78701331