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BS EN ISO 389-2:1997
Acoustics. Reference zero for the calibration of audiometric equipment Reference equivalent threshold sound pressure levels for pure tones and insert earphones
Acoustics. Reference zero for the calibration of audiometric equipment Reference equivalent threshold sound pressure levels for pure tones and insert earphones
Released: 1995-03-15
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156.95 USD
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156.95 USD
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389.65 USD
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389.65 USD
BS EN ISO 389-3:2016
Acoustics. Reference zero for the calibration of audiometric equipment Reference equivalent threshold vibratory force levels for pure tones and bone vibrators
Acoustics. Reference zero for the calibration of audiometric equipment Reference equivalent threshold vibratory force levels for pure tones and bone vibrators
Released: 2016-02-29
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259.76 USD
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BS EN ISO 389-4:1999
Acoustics. Reference zero for the calibration of audiometric equipment Reference levels for narrow-band masking noise
Acoustics. Reference zero for the calibration of audiometric equipment Reference levels for narrow-band masking noise
Released: 1999-07-15
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186.71 USD
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186.71 USD
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BS EN ISO 389-6:2007
Acoustics. Reference zero for the calibration of audiometric equipment Reference threshold of hearing for test signals of short duration
Acoustics. Reference zero for the calibration of audiometric equipment Reference threshold of hearing for test signals of short duration
Released: 2007-08-31
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BS EN ISO 389-7:2019
Acoustics. Reference zero for the calibration of audiometric equipment Reference threshold of hearing under free-field and diffuse-field listening conditions
Acoustics. Reference zero for the calibration of audiometric equipment Reference threshold of hearing under free-field and diffuse-field listening conditions
Released: 2019-12-06
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BS EN ISO 389-9:2009
Acoustics. Reference zero for the calibration of audiometric equipment Preferred test conditions for the determination of reference hearing threshold levels
Acoustics. Reference zero for the calibration of audiometric equipment Preferred test conditions for the determination of reference hearing threshold levels
Released: 2010-02-28
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BS EN ISO 7029:2017 - TC
Tracked Changes. Acoustics. Statistical distribution of hearing thresholds related to age and gender
Tracked Changes. Acoustics. Statistical distribution of hearing thresholds related to age and gender
Released: 2020-02-24
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456.63 USD
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BS EN ISO 7029:2017
Acoustics. Statistical distribution of hearing thresholds related to age and gender
Acoustics. Statistical distribution of hearing thresholds related to age and gender
Released: 2017-03-31
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304.41 USD
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BS EN ISO 8253-1:2010
Acoustics. Audiometric test methods Pure-tone air and bone conduction audiometry
Acoustics. Audiometric test methods Pure-tone air and bone conduction audiometry
Released: 2011-01-31
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