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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 P12-102/A1 ; NF EN 772-2/A1:2005-11-01
Methods of test for masonry units - Part 2: determination of percentage area of voids in masonry units (by paper indentation)

Title (German)

Prüfverfahren für Mauersteine - Teil 2: Bestimmung des prozentualen Lochanteils in Mauersteinen (mittels Papiereindruck)

Edition 2005-11-01

Original language 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

NF P12-102/A1 ; NF EN 772-2/A1:2005-11-01 Methods of test for masonry units - Part 2: determination of percentage area of voids in masonry units (by paper indentation)

Want to learn more?

NF P12-102/A1 ; NF EN 772-2/A1:2005-11-01
Methods of test for masonry units - Part 2: determination of percentage area of voids in masonry units (by paper indentation)