Acoustics - Reference zero for the calibration of audiometric equipment - Part 8: Reference equivalent threshold sound pressure levels for pure tones and circumaural earphones (ISO 389-8:2004)

ISO 389-8:2004 specifies reference equivalent threshold sound pressure levels (RETSPLs) for pure tones in the frequency range from 125 Hz to 8 kHz, applicable to the calibration of air conduction audiometers equipped with a particular model of circumaural earphones (SENNHEISER HDA 200).
Some notes and references on the derivation and the test conditions used to determine the recommended reference levels are given in Annex A and the Bibliography.
The sound attenuation of the earphone is given in Annex B. For speech audiometers of types A-E and B-E, the correction figures of the earphone for a free-field equivalent output are given in Annex C.

Akustik - Standard-Bezugspegel für die Kalibrierung audiometrischer Geräte - Teil 8: Äquivalente Bezugs-Schwellenschalldruckpegel für reine Töne und circumaurale Kopfhörer (ISO 389-8:2004)

Dieser Teil der Norm ISO 389 legt äquivalente Bezugs-Schwellenschalldruckpegel (RETSPL) 1) für Reintöne im Frequenzbereich von 125 Hz bis 8 kHz für die Kalibrierung von mit einem bestimmten circumauralen Kopfhörertyp (SENNHEISER HDA 200) ausgestatteten Luftleitungs-Audiometern fest.
ANMERKUNG   In Anhang A und in den Literaturhinweisen befinden sich Anmerkungen und Literaturhinweise zur Herleitung und zu den Prüfbedingungen bei der Bestimmung der empfohlenen Bezugswerte.
Die Schalldämmung des Kopfhörers ist in Anhang B angegeben. Für Sprach-Audiometer der Klassen A E und B E (siehe IEC 60645 2) sind die Korrekturwerte für die Freifeld-Entzerrung des Kopfhörers in Anhang C angegeben.

Acoustique - Zéro de référence pour l'étalonnage d'équipements audiométriques - Partie 8: Niveaux de référence équivalents de pression acoustique liminaire pour les écouteurs à sons purs circumauraux (ISO 389-8:2004)

L'ISO 389-8:2004 spécifie un niveau de référence équivalent de pression acoustique liminaire (RETSPL) pour des sons purs dans le domaine de fréquences comprises entre 125 Hz et 8 kHz, applicables à l'étalonnage des audiomètres en conduction aérienne équipés d'un modèle particulier d'écouteurs circumauraux (SENNHEISER HDA 200).
Des commentaires et des références sur l'obtention et les conditions d'essai utilisées pour déterminer les niveaux de référence recommandés sont donnés à l'Annexe A et dans la Bibliographie.
L'affaiblissement acoustique de l'écouteur est donné dans l'Annexe B. Les valeurs de correction du niveau de sortie pour l'équivalence au champ libre pour l'écouteur des audiomètres vocaux de types A-E et B-E sont données dans l'Annexe C.

Akustika – Referenca nič za umerjanje avdiometrične opreme – 8. del: Referenčni ekvivalentni prag ravni zvočnega tlaka za čiste tone in slušalke (ISO 389-8:2004)

General Information

Status
Published
Publication Date
14-May-2004
Technical Committee
Current Stage
9093 - Decision to confirm - Review Enquiry
Completion Date
20-Dec-2007

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SLOVENSKI STANDARD
SIST EN ISO 389-8:2004
01-september-2004
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Acoustics - Reference zero for the calibration of audiometric equipment - Part 8:

Reference equivalent threshold sound pressure levels for pure tones and circumaural

earphones (ISO 389-8:2004)

Akustik - Standard-Bezugspegel für die Kalibrierung audiometrischer Geräte - Teil 8:

Äquivalente Bezugs-Schwellenschalldruckpegel für reine Töne und circumaurale
Kopfhörer (ISO 389-8:2004)

Acoustique - Zéro de référence pour l'étalonnage d'équipements audiométriques - Partie

8: Niveaux de référence équivalents de pression acoustique liminaire pour les écouteurs

a sons purs circumauraux (ISO 389-8:2004)
Ta slovenski standard je istoveten z: EN ISO 389-8:2004
ICS:
13.140 Vpliv hrupa na ljudi Noise with respect to human
beings
SIST EN ISO 389-8:2004 en

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN ISO 389-8:2004
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SIST EN ISO 389-8:2004
EUROPEAN STANDARD
EN ISO 389-8
NORME EUROPÉENNE
EUROPÄISCHE NORM
May 2004
ICS 13.140
English version
Acoustics - Reference zero for the calibration of audiometric
equipment - Part 8: Reference equivalent threshold sound
pressure levels for pure tones and circumaural earphones (ISO
389-8:2004)

Acoustique - Zéro de référence pour l'étalonnage Akustik - Bezugpegel für die Audiometrie - Teil 8: Bezugs-

d'équipements audiométriques - Partie 8: Niveaux de Schwellen-Schalldruckpegel für Reintöne und circumaurale

référence équivalents de pression acoustique liminaire pour Kopfhörer (ISO 389-8:2004)

les écouteurs à sons purs circumauraux (ISO 389-8:2004)
This European Standard was approved by CEN on 16 April 2004.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European

Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national

standards may be obtained on application to the Central Secretariat or to any CEN member.

This European Standard exists in three official versions (English, French, German). A version in any other language made by translation

under the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the official

versions.

CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,

Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia,

Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36 B-1050 Brussels

© 2004 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 389-8:2004: E

worldwide for CEN national Members.
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SIST EN ISO 389-8:2004
EN ISO 389-8:2004 (E)
Foreword

This document (EN ISO 389-8:2004) has been prepared by Technical Committee ISO/TC 43

"Acoustics" in collaboration with Technical Committee CEN/TC 211 "Acoustics", the secretariat

of which is held by DS.

This European Standard shall be given the status of a national standard, either by publication of

an identical text or by endorsement, at the latest by November 2004, and conflicting national

standards shall be withdrawn at the latest by November 2004.

According to the CEN/CENELEC Internal Regulations, the national standards organizations of

the following countries are bound to implement this European Standard: Austria, Belgium,

Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary,

Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland,

Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
Endorsement notice

The text of ISO 389-8:2004 has been approved by CEN as EN ISO 389-8:2004 without any

modifications.
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SIST EN ISO 389-8:2004
INTERNATIONAL ISO
STANDARD 389-8
First edition
2004-05-15
Acoustics — Reference zero for the
calibration of audiometric equipment —
Part 8:
Reference equivalent threshold sound
pressure levels for pure tones and
circumaural earphones
Acoustique — Zéro de référence pour l'étalonnage d'équipements
audiométriques —
Partie 8: Niveaux de référence équivalents de pression acoustique
liminaire pour les écouteurs à sons purs circumauraux
Reference number
ISO 389-8:2004(E)
ISO 2004
---------------------- Page: 5 ----------------------
SIST EN ISO 389-8:2004
ISO 389-8:2004(E)
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ii © ISO 2004 – All rights reserved
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SIST EN ISO 389-8:2004
ISO 389-8:2004(E)
Foreword

ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies

(ISO member bodies). The work of preparing International Standards is normally carried out through ISO

technical committees. Each member body interested in a subject for which a technical committee has been

established has the right to be represented on that committee. International organizations, governmental and

non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the

International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.

International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.

The main task of technical committees is to prepare International Standards. Draft International Standards

adopted by the technical committees are circulated to the member bodies for voting. Publication as an

International Standard requires approval by at least 75 % of the member bodies casting a vote.

Attention is drawn to the possibility that some of the elements of this document may be the subject of patent

rights. ISO shall not be held responsible for identifying any or all such patent rights.

ISO 389-8 was prepared by Technical Committee ISO/TC 43, Acoustics.

ISO 389 consists of the following parts, under the general title Acoustics — Reference zero for the calibration

of audiometric equipment:

— Part 1: Reference equivalent threshold sound pressure levels for pure tones and supra-aural earphones

— Part 2: Reference equivalent threshold sound pressure levels for pure tones and insert earphones

— Part 3: Reference equivalent threshold force levels for pure tones and bone vibrators

— Part 4: Reference levels for narrow-band masking noise

— Part 5: Reference equivalent threshold sound pressure levels for pure tones in the frequency range 8 kHz

to 16 kHz

— Part 6: Reference equivalent threshold sound pressure levels for acoustic test signals of short duration

— Part 7: Reference threshold of hearing under free-field and diffuse-field listening conditions

— Part 8: Reference equivalent threshold sound pressure levels for pure tones and circumaural earphones

Part 9 on preferred test conditions for the standardization of reference equivalent threshold sound pressure

levels or vibratory force levels, is under preparation.
© ISO 2004 – All rights reserved iii
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SIST EN ISO 389-8:2004
ISO 389-8:2004(E)
Introduction

This part of ISO 389 has been established in order to be able to use the same earphone for pure tone

audiometry in the frequency range 125 Hz to 16 000 Hz. It specifies reference values from 125 Hz to 8 000 Hz.

ISO/TR 389-5 specifies values from 8 000 Hz to 16 000 Hz.

The reference values are based on information provided by laboratories in different countries, representing the

most reliable data available at this time.

At present, reference values for only one type of circumaural earphone, SENNHEISER HDA 200, are

available. This earphone provides a good attenuation of background noise and its frequency response is

without pronounced resonances on a human ear as well as on an ear simulator.
iv © ISO 2004 – All rights reserved
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SIST EN ISO 389-8:2004
INTERNATIONAL STANDARD ISO 389-8:2004(E)
Acoustics — Reference zero for the calibration of audiometric
equipment —
Part 8:
Reference equivalent threshold sound pressure levels for pure
tones a
...

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