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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]

BS 3668
Specification for red and green filters used in ophthalmic dichromatic and dissociation tests

Title (German)

Rot- und Gruenfilter fuer dichromatische und Dissoziationstests bei Augenuntersuchungen. Spezifikation

Edition 1963-10-09

Original language English

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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

BS 3668 Specification for red and green filters used in ophthalmic dichromatic and dissociation tests

Want to learn more?

BS 3668
Specification for red and green filters used in ophthalmic dichromatic and dissociation tests