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Acoustics - Reference zero for the calibration of audiometric equipment - Part 1: Reference equivalent threshold sound pressure levels for pure tones and supra-aural earphones (ISO 389-1:2017)Translate name
STANDARD published on 6.3.2019
Designation standards: UNE-EN ISO 389-1:2019
Publication date standards: 6.3.2019
The number of pages: 19
Approximate weight : 57 g (0.13 lbs)
Country: Spanish technical standard
Category: Technical standards UNE
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