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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 ISO 4047
Leather - Determination of sulphated total ash and sulphated water-insoluble ash (ISO 4047:1977)

Title (German)

Leder - Bestimmung der sulfatierten Gesamtasche und der sulfatierten wasserunlöslichen Asche (ISO 4047:1977)

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 ISO 4047 Leather - Determination of sulphated total ash and sulphated water-insoluble ash (ISO 4047:1977)

Want to learn more?

OENORM EN ISO 4047
Leather - Determination of sulphated total ash and sulphated water-insoluble ash (ISO 4047:1977)