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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 E51-101-4 ; NF EN ISO 12759-4:2019-11-27
Fans - Efficiency classification for fans - Part 4: driven fans at maximum operating speed

Title (German)

Ventilatoren - Effizienzklassifizierung für Ventilatoren - Teil 4: Angetriebene Ventilatoren bei maximaler Betriebsdrehzahl

Edition 2019-11-27

Original language French

Price from 147.70 €

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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 E51-101-4 ; NF EN ISO 12759-4:2019-11-27 Fans - Efficiency classification for fans - Part 4: driven fans at maximum operating speed

Want to learn more?

NF E51-101-4 ; NF EN ISO 12759-4:2019-11-27
Fans - Efficiency classification for fans - Part 4: driven fans at maximum operating speed