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Hydrogen Technologies Standards form the basic framework for market ramp-up
More information
Climate change Standards and specifications support climate targets
More information
Smart Farming Standards and specifications are drivers for the digitalization of agriculture
More information

Standards [CURRENT]

NF E51-717 ; NF EN 12237:2003-06-01
Ventilation for buildings - Ductwork - Strength and leakage of circular sheet metal ducts

Title (German)

Lüftung von Gebäuden - Luftleitungen - Festigkeit und Dichtheit von Luftleitungen mit rundem Querschnitt aus Blech

Edition 2003-06-01

Original language French

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Hydrogen Technologies Standards form the basic framework for market ramp-up

Climate change Standards and specifications support climate targets

Smart Farming Standards and specifications are drivers for the digitalization of agriculture

NF E51-717 ; NF EN 12237:2003-06-01 Ventilation for buildings - Ductwork - Strength and leakage of circular sheet metal ducts

Want to learn more?

NF E51-717 ; NF EN 12237:2003-06-01
Ventilation for buildings - Ductwork - Strength and leakage of circular sheet metal ducts