EN ISO 11904-2:2021

Acoustics - Determination of sound immission from sound sources placed close to the ear - Part 2: Technique using a manikin (ISO 11904-2:2021)

This document specifies basic framework measurement methods for sound immission from sound sources placed close to the ear. These measurements are carried out with a manikin, equipped with ear simulators including microphones. The measured values are subsequently converted into corresponding free-field or diffuse-field levels. The results are given as free-field related or diffuse-field related equivalent continuous A-weighted sound pressure levels. The technique is denoted the manikin technique.
This document is applicable to exposure to sound from sources close to the ear, for example during equipment tests or at the workplace to sound from earphones or hearing protectors with audio communication facilities.
This document is applicable in the frequency range from 20 Hz to 10 kHz. For frequencies above 10 kHz, ISO 11904-1 can be used.

Akustik - Bestimmung der Schallimmission von ohrnahen Schallquellen - Teil 2: Verfahren unter Verwendung eines Kopf- und Rumpfsimulators (ISO 11904-2:2021)

Dieses Dokument legt Rahmenmessverfahren für die Messung von Schallimmissionen durch ohrnahe Schallquellen fest. Diese Messungen werden unter Verwendung einer Messpuppe durchgeführt, die mit Ohrsimulatoren und Mikrofonen ausgestattet ist. Die Messwerte werden im Anschluss in entsprechende Freifeld- oder Diffusfeldpegel umgerechnet. Die Ergebnisse werden als freifeld- oder diffusfeldbezogene A bewertete äquivalente Dauerschalldruckpegel angegeben. Das Verfahren wird als Messpuppen- oder Manikin Verfahren bezeichnet.
Dieses Dokument ist anwendbar auf die Exposition durch ohrnahe Schallquellen, wie etwa Ohrhörer oder Gehörschützer mit Sprachübertragungssystemen, beispielsweise bei Geräteprüfungen oder am Arbeitsplatz.
Dieses Dokument ist anwendbar für den Frequenzbereich von 20 Hz bis 10 kHz. Für Frequenzen oberhalb von 10 kHz kann ISO 11904 1 verwendet werden.

Acoustique - Détermination de l'exposition sonore due à des sources placées à proximité de l'oreille - Partie 2: Technique utilisant un mannequin (ISO 11904-2:2021)

Le présent document spécifie des méthodes de mesure générales d'exposition sonore due à des sources placées à proximité de l'oreille. Ces mesurages sont effectués sur un mannequin, équipé de simulateurs d'oreille comprenant des microphones. Les valeurs mesurées sont ensuite converties en niveaux ramenés au champ libre ou au champ diffus correspondants. Les résultats sont donnés sous forme de niveaux de pression acoustique continus équivalents pondérés A relatifs au champ libre ou au champ diffus. La technique est appelée «technique du mannequin».
Le présent document s'applique à l'exposition à des sons provenant de sources placées à proximité de l'oreille, par exemple au cours d'essais d'appareillages ou sur le lieu de travail, de sons provenant d'écouteurs ou de protecteurs individuels contre le bruit munis de moyens de communication audio.
Le présent document s'applique dans la gamme de fréquences comprise entre 20 Hz et 10 kHz. Pour les fréquences supérieures à 10 kHz, l'ISO 11904-1 peut être utilisée.

Akustika - Ugotavljanje imisije zvoka iz zvočnih virov v neposredni bližini ušesa - 2. del: Uporaba lutke (ISO 11904-2:2021)

General Information

• Status: Published
• Publication Date: 16-Mar-2021
• Withdrawal Date: 29-Sep-2021
• ICS: 13.140 - Noise with respect to human beings
• ICS: 17.140.01 - Acoustic measurements and noise abatement in general
• Technical Committee: CEN/TC 211 - Acuostics
• Drafting Committee: CEN/TC 211 - Acuostics
• Current Stage: 6060 - Definitive text made available (DAV) - Publishing
• Start Date: 17-Mar-2021
• Completion Date: 17-Mar-2021
• Ref Project: SIST EN ISO 11904-2:2021 - Acoustics - Determination of sound immission from sound sources placed close to the ear - Part 2: Technique using a manikin (ISO 11904-2:2021)

Relations

• Replaces: EN ISO 11904-2:2004 - Acoustics - Determination of sound immission from sound sources placed close to the ear - Part 2: Technique using a manikin (ISO 11904-2:2004)
• Effective Date: 24-Mar-2021

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN ISO 11904-2:2021
01-julij-2021
Nadomešča:
SIST EN ISO 11904-2:2005
Akustika - Ugotavljanje imisije zvoka iz zvočnih virov v neposredni bližini ušesa -
2. del: Uporaba lutke (ISO 11904-2:2021)
Acoustics - Determination of sound immission from sound sources placed close to the
ear - Part 2: Technique using a manikin (ISO 11904-2:2021)
Akustik - Bestimmung der Schallimmission von ohrnahen Schallquellen - Teil 2:
Verfahren unter Verwendung eines Kopf- und Rumpfsimulators (ISO 11904-2:2021)
Acoustique - Détermination de l'exposition sonore due à des sources placées à proximité
de l'oreille - Partie 2: Technique utilisant un mannequin (ISO 11904-2:2021)
Ta slovenski standard je istoveten z: EN ISO 11904-2:2021
ICS:
17.140.01 Akustična merjenja in Acoustic measurements and
blaženje hrupa na splošno noise abatement in general
33.160.50 Pribor Accessories
SIST EN ISO 11904-2:2021 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN ISO 11904-2:2021

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SIST EN ISO 11904-2:2021


EN ISO 11904-2
EUROPEAN STANDARD

NORME EUROPÉENNE

March 2021
EUROPÄISCHE NORM
ICS 13.140 Supersedes EN ISO 11904-2:2004
English Version

Acoustics - Determination of sound immission from sound
sources placed close to the ear - Part 2: Technique using a
manikin (ISO 11904-2:2021)
Acoustique - Détermination de l'exposition sonore due Akustik - Bestimmung der Schallimmission von
à des sources placées à proximité de l'oreille - Partie 2: ohrnahen Schallquellen - Teil 2: Verfahren unter
Technique utilisant un mannequin (ISO 11904-2:2021) Verwendung eines Kopf- und Rumpfsimulators (ISO
11904-2:2021)
This European Standard was approved by CEN on 9 March 2021.

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 CEN-CENELEC Management Centre 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 CEN-CENELEC Management
Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.





EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2021 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 11904-2:2021 E
worldwide for CEN national Members.

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SIST EN ISO 11904-2:2021
EN ISO 11904-2:2021 (E)
Contents Page
European foreword . 3

2

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SIST EN ISO 11904-2:2021
EN ISO 11904-2:2021 (E)
European foreword
This document (EN ISO 11904-2:2021) 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 DIN.
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 September 2021, and conflicting national standards
shall be withdrawn at the latest by September 2021.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN ISO 11904-2:2004.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland,
Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of
North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the
United Kingdom.
Endorsement notice
The text of ISO 1
...