• Hydrogen Technologies 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 CEN/TC 211

DIN EN ISO 4869-2 2019-10 Standards Acoustics - Hearing protectors - Part 2: Estimation of effective A-weighted sound pressure levels when hearing protectors are worn (ISO 4869-2:2018); German version EN ISO 4869-2:2018 More  Order from DIN Media
DIN EN ISO 4869-3 2007-09 Standards Acoustics - Hearing protectors - Part 3: Measurement of insertion loss of ear-muff type protectors using an acoustic test fixture (ISO 4869-3:2007); German version EN ISO 4869-3:2007 More  Order from DIN Media
DIN EN ISO 4871 2009-11 Standards Acoustics - Declaration and verification of noise emission values of machinery and equipment (ISO 4871:1996); German version EN ISO 4871:2009 More  Order from DIN Media
DIN EN ISO 5114-1 2025-07 Standards Acoustics - Determination of uncertainties associated with sound emission measures - Part 1: Sound power levels determined from sound pressure measurements (ISO 5114-1:2024); German version EN ISO 5114-1:2024 More  Order from DIN Media
DIN EN ISO 5135 2020-12 Standards Acoustics - Determination of sound power levels of noise from air-terminal devices, air-terminal units, dampers and valves by measurement in a reverberation test room (ISO 5135:2020); German version EN ISO 5135:2020 More  Order from DIN Media
DIN EN ISO 5136 2009-11 Standards Acoustics - Determination of sound power radiated into a duct by fans and other air-moving devices - In-duct method (ISO 5136:2003); German version EN ISO 5136:2009 More  Order from DIN Media
DIN EN ISO 6926 2023-08 Standards Acoustics - Requirements for the performance and calibration of reference sound sources used for the determination of sound power levels (ISO 6926:2016 + Amd 1:2020); German version EN ISO 6926:2016 + A1:2020 More  Order from DIN Media
DIN EN ISO 7029 2025-07 Standards Acoustics - Statistical distribution of hearing thresholds related to age and gender (ISO 7029:2017 + Amd 1:2024); German version EN ISO 7029:2017 + A1:2024 More  Order from DIN Media
DIN EN ISO 7235 2010-01 Standards Acoustics - Laboratory measurement procedures for ducted silencers and air-terminal units - Insertion loss, flow noise and total pressure loss (ISO 7235:2003); German version EN ISO 7235:2009 More  Order from DIN Media
DIN EN ISO 7779 2019-04 Standards Acoustics - Measurement of airborne noise emitted by information technology and telecommunications equipment (ISO 7779:2018); German version EN ISO 7779:2018 More  Order from DIN Media

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