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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 A03-150-4 ; NF EN ISO 4545-4:2018-02-07
Metallic materials - Knoop hardness test - Part 4: table of hardness values

Title (German)

Metallische Werkstoffe - Härteprüfung nach Knoop - Teil 4: Tabelle zur Bestimmung der Härtewerte

Edition 2018-02-07

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 A03-150-4 ; NF EN ISO 4545-4:2018-02-07 Metallic materials - Knoop hardness test - Part 4: table of hardness values

Want to learn more?

NF A03-150-4 ; NF EN ISO 4545-4:2018-02-07
Metallic materials - Knoop hardness test - Part 4: table of hardness values