Tiêu chuẩn iso 00389 3 1994 cor1 1995
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INTERNATIONAL STANDARD ISO 389-3:1994
TECHNICAL CORRIGENDUM 1
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
1
- Zero de rbfbrence pour Mtalonnage
Acoustique
INTERNATIONALE
d%quipements
de forte liminaire
audiom&riques
pour /es vibrateurs
a sons purs et /es ossivibrateurs
1
1 to International
Standard
ISO 389-3:1994
was
prepared
by Technical
Committee
lSO/rC
Page 5
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:
0
acoustics,
ISO 1995
Printed in Switzerland
Ref. No. ISO 389.3:1994/Cor.l:1995(E)
audiometry,
audiometers,
calibration,
auditory threshold,
reference data.
43,
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