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Hydrogen Technologies Standards form the basic framework for market ramp-up
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Publications of DKE/GUK 821.6

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ISO 389-5	2006-11	Standards	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 More	Order from DIN Media
ISO 389-6	2007-07	Standards	Acoustics - Reference zero for the calibration of audiometric equipment - Part 6: Reference threshold of hearing for test signals of short duration More	Order from DIN Media
ISO 389-7	2019-10	Standards	Acoustics - Reference zero for the calibration of audiometric equipment - Part 7: Reference threshold of hearing under free-field and diffuse-field listening conditions More	Order from DIN Media
ISO 389-8	2004-05	Standards	Acoustics - Reference zero for the calibration of audiometric equipment - Part 8: Reference equivalent threshold sound pressure levels for pure tones and circumaural earphones More	Order from DIN Media
ISO 389-9	2009-05	Standards	Acoustics - Reference zero for the calibration of audiometric equipment - Part 9: Preferred test conditions for the determination of reference hearing threshold levels More	Order from DIN Media
ISO 7029	2017-01	Standards	Acoustics - Statistical distribution of hearing thresholds related to age and gender More	Order from DIN Media
ISO 7029 AMD 1	2024-03	Standards	Acoustics - Statistical distribution of hearing thresholds related to age and gender - Amendment 1: Correction of parameter values for estimating the hearing threshold distribution More	Order from DIN Media
ISO 8253-1	2010-11	Standards	Acoustics - Audiometric test methods - Part 1: Pure-tone air and bone conduction audiometry More	Order from DIN Media
ISO 8253-2	2009-12	Standards	Acoustics - Audiometric test methods - Part 2: Sound field audiometry with pure-tone and narrow-band test signals More	Order from DIN Media
ISO 8253-3	2022-01	Standards	Acoustics - Audiometric test methods - Part 3: Speech audiometry More	Order from DIN Media

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