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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 S31-062-3 ; NF EN ISO 4869-3:2008-10-01
Acoustics - Hearing protectors - Part 3: measurement of insertion loss of ear-muff type protectors using an acoustic test fixture

Title (German)

Akustik - Gehörschützer - Teil 3: Messung der Schalldämmung von Kapselgehörschützern unter Verwendung einer akustischen Prüfvorrichtung

Edition 2008-10-01

Original language 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

NF S31-062-3 ; NF EN ISO 4869-3:2008-10-01 Acoustics - Hearing protectors - Part 3: measurement of insertion loss of ear-muff type protectors using an acoustic test fixture

Want to learn more?

NF S31-062-3 ; NF EN ISO 4869-3:2008-10-01
Acoustics - Hearing protectors - Part 3: measurement of insertion loss of ear-muff type protectors using an acoustic test fixture