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AS/NZS ISO 389.1:2019現(xiàn)行
Acoustics - Reference zero for the calibration of audiometric equipment Reference equivalent threshold sound pressure levels for pure tones and supra-aural earphones
出版：Standards Australia
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基本信息
標(biāo)準(zhǔn)編號： AS/NZS ISO 389.1:2019
標(biāo)準(zhǔn)類別：Standard
出版單位：Standards Australia
標(biāo)準(zhǔn)頁數(shù)：0
標(biāo)準(zhǔn)簡介
The objective of this Standard is to specify a standard reference zero for the scale of hearing threshold level applicable to pure-tone air conduction audiometers, to promote agreement and uniformity in the expression of hearing threshold level measurements throughout the world.
