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Tiêu chuẩn iso 00389 3 1994 cor1 1995

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INTERNATIONAL STANDARD ISO 389 3 1994 TECHNICAL CORRIGENDUM 1 Published 1995 08 15 INTERNATIONAL DMANKATIDN FOR STANDARDRATiON MWYHAWAHM OPrAHH3AuHR fl0 CTAHL\APTH3Al#‘Wl~ ORGANISATION INTERNATIONALE[.]

INTERNATIONAL STANDARD ISO 389-3:1994 TECHNICAL CORRIGENDUM Published INTERNATIONAL DMANKATIDN FOR STANDARDRATiON MWYHAWAHM 1995-08-15 OPrAHH3AuHR fl0 CTAHL\APTH3Al#‘Wl~ ORGANISATION Acoustics - Reference zero for the calibration audiometric equipment Part 3: Reference equivalent and bone Vibrators TECHNICAL CORRIGENDUM threshold Partie 3: Niveaux de rhfdrence Äquivalents RECTIFICATIF TECHNIQUE Technical corrigendum Acoustics DE WRMALISATION of forte Ievels for pure tones - Zero de rbfbrence pour Mtalonnage Acoustique INTERNATIONALE d%quipements de forte liminaire audiom&riques pour /es vibrateurs a sons purs et /es ossivibrateurs 1 to International Standard ISO 389-3:1994 was prepared by Technical Committee lSO/rC Page Annex A The first section of table A.1 should be corrected as follows: Investigation Test data / Type of Vibrator Type of masking earphone Ref [l] Ref [Z] Ref [3] B-71 ‘) 8-71 ‘1 KH-70 2’ TDH39 3, TDH39 3, DT48 4, Page 70 Annex E Reference [4] should read as follows: [4] ANSI S3:13-1972, ICS 13.140.00 Descriptors: acoustics, ISO 1995 Printed in Switzerland Ref No ISO 389.3:1994/Cor.l:1995(E) audiometry, audiometers, calibration, auditory threshold, reference data 43, This page intentionally left blank

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