BS EN ISO 389-1:2018 :
BS EN ISO 389-1:2018 : 1377264
BS EN ISO 389-1:2018 :
Title: Acoustics. Reference zero for the calibration of audiometric equipment Reference equivalent threshold sound pressure levels for pure tones and supra-aural earphones
Pages: 18
Year:
Publisher: BSI
Availability: Within 1-2 working days BSI will directly send the standards to End-User after our confirmation.
Title: Acoustics. Reference zero for the calibration of audiometric equipment Reference equivalent threshold sound pressure levels for pure tones and supra-aural earphones
Pages: 18
Year:
Publisher: BSI
Availability: Within 1-2 working days BSI will directly send the standards to End-User after our confirmation.
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