Smoke leakage (S): Failure of this criterion shall have happened if the move level in duct A in the exam exceeds ten m³ / (m² h), linked to 20 °C and 1013 mbar, connected to The inner surface area region with the duct Within the furnace. Following Era EU strengthens https://fireratedinsulationforduc23344.topbloghub.com/43286842/the-greatest-guide-to-fire-rated-insulation-for-ductworth