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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 A04-102 ; PR NF EN ISO 643
Steels - Micrographic determination of the apparent grain size

Title (German)

Stahl - Mikrophotographische Bestimmung der erkennbaren Korngröße

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 A04-102 ; PR NF EN ISO 643 Steels - Micrographic determination of the apparent grain size

Want to learn more?

PR NF A04-102 ; PR NF EN ISO 643
Steels - Micrographic determination of the apparent grain size