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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]

OENORM EN 772-4
Methods of test for masonry units - Part 4: Determination of real and bulk density and of total and open porosity for natural stone masonry units

Title (German)

Prüfverfahren für Mauersteine - Teil 4: Bestimmung der Dichte und der Rohdichte sowie der Gesamtporosität und der offenen Porosität von Mauersteinen aus Naturstein

Edition 1999-01-01

Original language German

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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

OENORM EN 772-4 Methods of test for masonry units - Part 4: Determination of real and bulk density and of total and open porosity for natural stone masonry units

Want to learn more?

OENORM EN 772-4
Methods of test for masonry units - Part 4: Determination of real and bulk density and of total and open porosity for natural stone masonry units