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Hydrogen Technologies Standards form the basic framework for market ramp-up
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Smart Farming Standards and specifications are drivers for the digitalization of agriculture
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Publications of NA 005-11-42 AA

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ISO 20998-1	2006-08	Standards	Measurement and characterization of particles by acoustic methods - Part 1: Concepts and procedures in ultrasonic attenuation spectroscopy More	Order from DIN Media
ISO 20998-2	2022-08	Standards	Measurement and characterization of particles by acoustic methods - Part 2: Linear theory More	Order from DIN Media
ISO 20998-3	2017-04	Standards	Measurement and characterization of particles by acoustic methods - Part 3: Guidelines for non-linear theory More	Order from DIN Media
ISO 21501-1	2009-06	Standards	Determination of particle size distribution - Single particle light interaction methods - Part 1: Light scattering aerosol spectrometer More	Order from DIN Media
ISO 21501-2	2019-11	Standards	Determination of particle size distribution - Single particle light interaction methods - Part 2: Light scattering liquid-borne particle counter More	Order from DIN Media
ISO 21501-3	2019-11	Standards	Determination of particle size distribution - Single particle light interaction methods - Part 3: Light extinction liquid-borne particle counter More	Order from DIN Media
ISO 21501-4	2018-05	Standards	Determination of particle size distribution - Single particle light interaction methods - Part 4: Light scattering airborne particle counter for clean spaces More	Order from DIN Media
ISO 21501-4 AMD 1	2023-02	Standards	Determination of particle size distribution - Single particle light interaction methods - Part 4: Light scattering airborne particle counter for clean spaces; Amendment 1 More	Order from DIN Media
ISO 22412	2017-02	Standards	Particle size analysis - Dynamic light scattering (DLS) More	Order from DIN Media
ISO 23484	2023-07	Standards	Determination of particle concentration by small-angle X-ray scattering (SAXS) More	Order from DIN Media

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