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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 T90-880 ; PR NF EN 17899
Water quality - Spectrophotometric determination of chlorophyll-a content by ethanol extraction for the routine monitoring of water quality

Title (German)

Wasserbeschaffenheit - Spektrophotometrische Bestimmung des Gehalts an Chlorophyll-a

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 T90-880 ; PR NF EN 17899 Water quality - Spectrophotometric determination of chlorophyll-a content by ethanol extraction for the routine monitoring of water quality

Want to learn more?

PR NF T90-880 ; PR NF EN 17899
Water quality - Spectrophotometric determination of chlorophyll-a content by ethanol extraction for the routine monitoring of water quality