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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]

NF S31-062-2 ; NF EN ISO 4869-2:2018-11-21
Acoustics - Hearing protectors - Part 2: estimation of effective A-weighted sound pressure levels when hearing protectors are worn

Title (German)

Akustik - Gehörschützer - Teil 2: Abschätzung der beim Tragen von Gehörnschützern wirksamen A-bewerteten Schalldruckpegel

Edition 2018-11-21

Original language French

Price from 77.20 €

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Terminology

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

NF S31-062-2 ; NF EN ISO 4869-2:2018-11-21 Acoustics - Hearing protectors - Part 2: estimation of effective A-weighted sound pressure levels when hearing protectors are worn

Want to learn more?

NF S31-062-2 ; NF EN ISO 4869-2:2018-11-21
Acoustics - Hearing protectors - Part 2: estimation of effective A-weighted sound pressure levels when hearing protectors are worn