Unknown BRITISH STANDARD BS EN 12237 2003 Ventilation for buildings — Ductwork — Strength and leakage of circular sheet metal ducts The European Standard EN 12237 2003 has the status of a British Stan[.]
BRITISH STANDARD Ventilation for buildings — Ductwork — Strength and leakage of circular sheet metal ducts The European Standard EN 12237:2003 has the status of a British Standard ICS 91.140; 91.140.30 12&23