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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]

SN EN ISO 8597
Optics and optical instruments - Visual acuity testing - Method of correlating optotypes (ISO 8597:1994, including Technical Corrigendum 1:1995)

Title (German)

Optik und optische Instrumente - Sehschärfeprüfung - Verfahren zum Anschluß von Sehzeichen (ISO 8597:1994, einschließlich Technische Korrektur 1:1995)

Edition 1996

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

SN EN ISO 8597 Optics and optical instruments - Visual acuity testing - Method of correlating optotypes (ISO 8597:1994, including Technical Corrigendum 1:1995)

Want to learn more?

SN EN ISO 8597
Optics and optical instruments - Visual acuity testing - Method of correlating optotypes (ISO 8597:1994, including Technical Corrigendum 1:1995)