Smoke leakage (S): Failure of the criterion shall have transpired When the move rate in duct A during the test exceeds ten m³ / (m² h), related to 20 °C and 1013 mbar, connected with the internal surface area region from the duct inside the furnace. Fire penetration products can https://ductworth-installation12344.worldblogged.com/42486001/5-easy-facts-about-fire-resistant-ductworth-isntallers-described