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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 D35-500-2-2 ; PR NF EN 15502-2-2
Gas-fired central heating boilers - Part 2-2 : specific standard for type B1 appliances of a nominal heat input not exceeding 70 kW

Title (German)

Heizkessel für gasförmige Brennstoffe - Teil 2-2 : Heizkessel der Bauart B1 mit einer Nennwärmebelastung nicht grösser als 70 kW

Original language English , 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

PR NF D35-500-2-2 ; PR NF EN 15502-2-2 Gas-fired central heating boilers - Part 2-2 : specific standard for type B1 appliances of a nominal heat input not exceeding 70 kW

Want to learn more?

PR NF D35-500-2-2 ; PR NF EN 15502-2-2
Gas-fired central heating boilers - Part 2-2 : specific standard for type B1 appliances of a nominal heat input not exceeding 70 kW