Smoke leakage (S): Failure of the criterion shall have transpired In the event the movement price in duct A throughout the test exceeds ten m³ / (m² h), linked to 20 °C and 1013 mbar, related to The inner floor location from the duct In the furnace. The Russian Ministry https://deanriwkz.activablog.com/36067099/everything-about-fire-rated-insulation-for-ductworth