• Hydrogen Technologies Norms and standards form the basic framework for market ramp-up

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  • Climate change Standards and specifications support climate targets

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  • Smart Farming Standards and specifications are drivers for the digitalization of agriculture

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Publications of NA 134 BR

ISO 4220 1983-12 Standards Ambient air; Determination of a gaseous acid air pollution index; Titrimetric method with indicator or potentiometric end-point detection More  Order from Beuth Verlag
ISO 4221 1980-11 Standards Air quality; Determination of mass concentration of sulphur dioxide in ambient air; Thorin spectrophotometric method More  Order from Beuth Verlag
ISO 7996 1985-12 Standards Ambient air; Determination of the mass concentration of nitrogen oxides; Chemiluminescence method More  Order from Beuth Verlag

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