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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

Draft standard

PR NF D35-431 ; PR NF EN 17692
Central heating boilers - Main specification for indirectly heated unvented (closed) metallic pressurized buffer tanks - Requirements, testing and marking

Title (German)

Zentralheizungskessel - Beschreibungen für mittelbar beheizte, unbelüftete (geschlossene), metallene unter Druck stehende Pufferspeicher - Anforderungen, Prüfung und Kennzeichnung

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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

PR NF D35-431 ; PR NF EN 17692 Central heating boilers - Main specification for indirectly heated unvented (closed) metallic pressurized buffer tanks - Requirements, testing and marking

Want to learn more?

PR NF D35-431 ; PR NF EN 17692
Central heating boilers - Main specification for indirectly heated unvented (closed) metallic pressurized buffer tanks - Requirements, testing and marking