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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 S30-007-5 ; NF EN ISO 389-5:2008-04-01
Acoustics - Reference zero for the calibration of audiometric equipment - Part 5: reference equivalent threshold sound pressure levels for pure tones in the frequency range 8 kHz to 16 kHz

Title (German)

Akustik - Standard-Bezugspegel für die Kalibrierung audiometrischer Geräte - Teil 5: Äquivalente Bezugs-Schwellenschalldruckpegel für reine Töne im Frequenzbereich 8 kHz bis 16 kHz

Edition 2008-04-01

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 S30-007-5 ; NF EN ISO 389-5:2008-04-01 Acoustics - Reference zero for the calibration of audiometric equipment - Part 5: reference equivalent threshold sound pressure levels for pure tones in the frequency range 8 kHz to 16 kHz

Want to learn more?

NF S30-007-5 ; NF EN ISO 389-5:2008-04-01
Acoustics - Reference zero for the calibration of audiometric equipment - Part 5: reference equivalent threshold sound pressure levels for pure tones in the frequency range 8 kHz to 16 kHz