BS EN ISO 389-1:2018 PDF

Name: BS EN ISO 389-1:2018 — Acoustics. Reference zero for the calibration of audiometric equipment. Reference equivalent threshold sound pressure levels for pure tones and supra-aural earphones.
SKU: BS EN ISO 389-1:2018
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Acoustics. Reference zero for the calibration of audiometric equipment. Reference equivalent threshold sound pressure levels for pure tones and supra-aural earphones.

Название (английский):

BS EN ISO 389-1:2018

Acoustics. Reference zero for the calibration of audiometric equipment. Reference equivalent threshold sound pressure levels for pure tones and supra-aural earphones.