28 Nov NF – Concrete chimneys components (NF054) – MARQUE NF Posted at 13:54h in Climatic engineering by admin Caractéristiques : Physical characteristics (Thermal stress resistance; Gas leakage ; Bulk density ; Heat, flow, abrasion, condensation and corrosion resistance ; Thermal schock (option)) Visual characteristics (Appearance) Geometric characteristics (Dimensional tolerances ; Squareness and straightness ; Interlocking) Mechanical strength (Compressive and Flexural) Distance to combustible material Organisme certificateur : CERIB||| Be certified See certified