Energy performance of buildings - Determination and reporting of Primary Energy Factors (PEF) and CO2 emission coefficient - General Principles, Module M1-7; German and English version prEN 17423:2019
German title
Energieeffizienz von Gebäuden - Bestimmung und Berichterstattung von Primärenergiefaktoren (PEF) und CO2-Emissionsfaktoren; Deutsche und Englische Fassung prEN 17423:2019
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