SIST EN ISO 11200:2014

Acoustics - Noise emitted by machinery and equipment - Guidelines for the use of basic standards for the determination of emission sound pressure levels at a work station and at other specified positions (ISO 11200:2014)

EN ISO 11200 is the frame standard introducing the basic group, ISO 11201, ISO 11202, ISO 11203, ISO 11204 and ISO 11205, on the determination of emission sound pressure levels at work stations and other specified positions. It gives guidance for: - facilitating the writing of noise test codes; - providing physical explanations of this noise emission quantity compared to other noise quantities (see 4.1 to 4.3); - comparing the different measurement methods offered by the group (see Table 1); - facilitating the choice of the most appropriate method(s) in typical practical situations (Clause 6). This International Standard is largely based on flow charts and tables. Case studies are described. The guidance given applies to airborne sound only. It is for use in noise testing, in general, and in the preparation of noise test codes, in particular. A standardized noise test code is intended to select standards from the ISO 11201, ISO 11202, ISO 11203, ISO 11204 and ISO 11205 group, which are the most appropriate to the machinery family it covers, and which give detailed requirements on mounting and operating conditions for the particular family, as well as the location of the work station(s) and other specified positions as prescribed in these International Standards. The data so obtained can be used for the declaration and verification of emission sound pressure levels, e.g. as specified in ISO 4871.

Akustik - Geräuschabstrahlung von Maschinen und Geräten - Leitlinien zur Anwendung der Grundnormen zur Bestimmung von Emissions-Schalldruckpegeln am Arbeitsplatz und an anderen festgelegten Orten (ISO 11200:2014)

Diese Internationale Norm ist die Rahmennorm, mit der die Reihe ISO 11201 bis ISO 11205 von Internationalen Grundnormen zur Bestimmung von Emissions-Schalldruckpegeln am Arbeitsplatz und an anderen festgelegten Orten (ISO 11201 bis ISO 11205) eingeführt wird. Sie ist ein Leitfaden, der folgenden Zwecken dient:
-   die Ausarbeitung von Geräuschmessnormen zu erleichtern;
-   diese Geräuschemissionskenngröße physikalisch zu erläutern und mit weiteren Geräuschkenngrößen zu vergleichen (4.1 bis 4.3);
-   die durch die Normenreihe angebotenen unterschiedlichen Messverfahren miteinander zu vergleichen (Abschnitt 5, Tabelle 1);
-   die Auswahl der (des) für typische praktische Situationen am besten geeigneten Verfahren(s) zu erleichtern (Abschnitt 6).
Diese Internationale Norm ist weitgehend auf Flussdiagrammen und Tabellen aufgebaut. Außerdem werden einige Fallstudien beschrieben.
Die gegebene Anleitung gilt nur für Luftschall. Sie ist ganz allgemein für die Anwendung bei Geräusch-prüfungen und im Besonderen für die Ausarbeitung von Geräuschmessnormen vorgesehen.
Jede Geräuschmessnorm sollte für die Maschinenfamilie, für die sie gilt, die am besten geeigneten Normen aus der Reihe ISO 11201 bis ISO 11205 auswählen, für die Maschinenfamilie detaillierte Anforderungen an die Aufstellungs- und Betriebsbedingungen vorgeben sowie die Position des Arbeitsplatzes (der Arbeitsplätze) und anderer vorgeschriebener Orte festlegen, wie in diesen Internationalen Normen vorgeschrieben.
Die so erhaltenen Daten dürfen auch für die Angabe (Deklaration) und die Nachprüfung von Emissions-Schalldruckpegeln verwendet werden, wie z. B. in ISO 4871 festgelegt.

Acoustique - Bruit émis par les machines et équipements - Guide d'utilisation des normes de base pour la détermination des niveaux de pression acoustique d'émission au poste de travail et en d'autres positions spécifiées (ISO 11200:2014)

L'ISO 11200:2014 est la norme cadre présentant l'ensemble des Normes internationales ISO 11201, ISO 11202, ISO 11203, ISO 11204 et ISO 11205 relatives à la détermination des niveaux de pression acoustique d'émission aux postes de travail et en d'autres positions spécifiées. Elle donne des lignes directrices en vue de:
faciliter la rédaction des codes d'essai acoustique;
fournir des explications physiques sur cette grandeur d'émission sonore par comparaison à d'autres grandeurs acoustiques (voir 4.1 à 4.3);
comparer les différentes méthodes de mesure proposées par l'ensemble de normes (voir Tableau 1);
faciliter le choix de la (des) méthode(s) la (les) plus appropriée(s) dans des situations pratiques types (Article 6).
Les recommandations données s'appliquent uniquement au bruit aérien. Elles doivent être utilisées lors des essais acoustiques en général et lors de la préparation des codes d'essai acoustique en particulier.
Un code d'essai acoustique normalisé vise à choisir, parmi l'ensemble de normes ISO 11201, ISO 11202, ISO 11203, ISO 11204 et ISO 11205, celles qui sont les plus appropriées pour la famille de machines considérée, et qui fournissent des exigences détaillées relatives aux conditions de montage et de fonctionnement pour cette famille particulière et indiquent l'emplacement du (des) poste(s) de travail et d'autres positions spécifiées comme prescrit dans ces Normes internationales.

Akustika - Emisija hrupa strojev in naprav - Smernice za uporabo temeljnih standardov za ugotovljanje emisijskih ravni zvočnega tlaka na mestu delovanja in na drugih opredeljenih mestih (ISO 11200:2014)

EN ISO 11200 je okvirni standard, ki predstavlja temeljne standarde ISO 11201, ISO 11202, ISO 11203, ISO 11204 in ISO 11205 za ugotavljanje emisijske ravni zvočnega tlaka na mestu delovanja in drugih opredeljenih mestih. Standard podaja smernice za: - pomoč pri pisanju oznak preskusa hrupa; - podajanje fizikalnih razlag tega obsega emisije hrupa v primerjavi z drugimi obsegi emisije hrupa (glejte 4.1 do 4.3); - primerjanje različnih merilnih metod, ki jih ponuja ta skupina standardov (glejte preglednico 1); - pomoč pri izbiranju najustreznejših(e) metod(e) v običajnih praktičnih razmerah (točka 6) Ta mednarodni standard večinoma temelji na diagramih poteka in preglednicah. Opisane so študije primerov. Podane smernice veljajo le za zvok v zraku. Standard je v splošnem namenjen uporabi pri preskušanju hrupa, še posebej pa pri pripravljanju oznak preskusa hrupa. Standardizirana oznaka preskusa hrupa je namenjena izbiri standardov iz skupine standardov ISO 11201, ISO 11202, ISO 11203, ISO 11204 in ISO 11205, ki so najustreznejši za vrsto strojev, na katero se nanašajo, in podajajo podrobne zahteve tako glede priključitve in delovanja za posamezno vrsto strojev kot tudi glede lokacije delovnih(ega) mest(a) ter drugih opredeljenih mest, kot je predpisano v teh mednarodnih standardih. Pridobljene podatke je mogoče uporabiti za deklariranje in potrjevanje emisijskih ravni zvočnega tlaka, npr. kot je določeno v standardu ISO 4871.

General Information

• Status: Published
• Public Enquiry End Date: 14-Oct-2012
• Publication Date: 03-Sep-2014
• ICS: 17.140.20 - Noise emitted by machines and equipment
• Technical Committee: AKU - Acoustics
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 14-May-2014
• Due Date: 19-Jul-2014
• Completion Date: 04-Sep-2014
• Directive: 2006/42/EC - Directive 2006/42/EC of the European Parliament and of the Council of 17 May 2006 on machinery, and amending Directive 95/16/EC (recast)
• Directive: 89/392/EEC - Machinery - Safety of machinery: general essential health and safety requirements
• Directive: 98/37/EC - Machinery
• Mandate: M/079 - Mandate to CEN and CENELEC for standardization in the field of machines
• Mandate: M/396 - Mandate to CEN and Cenelec for standardisation in the field of machinery
• Mandate: M/BC/CEN/88/13 - Standardization request to CEN/CENELEC relating to machinery
• Ref Project: EN ISO 11200:2014 - Acoustics - Noise emitted by machinery and equipment - Guidelines for the use of basic standards for the determination of emission sound pressure levels at a work station and at other specified positions (ISO 11200:2014)

Relations

• Replaces: SIST EN ISO 11200:2009 - Acoustics - Noise emitted by machinery and equipment - Guidelines for the use of basic standards for the determination of emission sound pressure levels at a work station and at other specified positions (ISO 11200:1995, including Cor 1:1997)
• Effective Date: 01-Oct-2014
• Amended By: SIST EN ISO 11200:2014/A1:2020 - Acoustics - Noise emitted by machinery and equipment - Guidelines for the use of basic standards for the determination of emission sound pressure levels at a work station and at other specified positions - Amendment 1 (ISO 11200:2014/Amd 1:2018)
• Effective Date: 01-Apr-2020
• Replaces: SIST EN ISO 11200:2009 - Acoustics - Noise emitted by machinery and equipment - Guidelines for the use of basic standards for the determination of emission sound pressure levels at a work station and at other specified positions (ISO 11200:1995, including Cor 1:1997)
• Effective Date: 08-Jun-2022

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN ISO 11200:2014
01-oktober-2014
1DGRPHãþD
SIST EN ISO 11200:2009
$NXVWLND(PLVLMDKUXSDVWURMHYLQQDSUDY6PHUQLFH]DXSRUDERWHPHOMQLK
VWDQGDUGRY]DXJRWRYOMDQMHHPLVLMVNLKUDYQL]YRþQHJDWODNDQDPHVWXGHORYDQMDLQ
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Acoustics - Noise emitted by machinery and equipment - Guidelines for the use of basic

standards for the determination of emission sound pressure levels at a work station and

at other specified positions (ISO 11200:2014)

Akustik - Geräuschabstrahlung von Maschinen und Geräten - Leitlinien zur Anwendung

der Grundnormen zur Bestimmung von Emissions-Schalldruckpegeln am Arbeitsplatz
und an anderen festgelegten Orten (ISO 11200:2014)

Acoustique - Bruit émis par les machines et équipements - Guide d'utilisation des

normes de base pour la détermination des niveaux de pression acoustique d'émission au

poste de travail et en d'autres positions spécifiées (ISO 11200:2014)
Ta slovenski standard je istoveten z: EN ISO 11200:2014
ICS:
17.140.20 Emisija hrupa naprav in Noise emitted by machines
opreme and equipment
SIST EN ISO 11200:2014 en

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

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SIST EN ISO 11200:2014
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SIST EN ISO 11200:2014
EUROPEAN STANDARD
EN ISO 11200
NORME EUROPÉENNE
EUROPÄISCHE NORM
May 2014
ICS 17.140.20 Supersedes EN ISO 11200:2009
English Version
Acoustics - Noise emitted by machinery and equipment -
Guidelines for the use of basic standards for the determination of
emission sound pressure levels at a work station and at other
specified positions (ISO 11200:2014)

Acoustique - Bruit émis par les machines et équipements - Akustik - Geräuschabstrahlung von Maschinen und Geräten

Guide d'utilisation des normes de base pour la - Leitlinien zur Anwendung der Grundnormen zur

détermination des niveaux de pression acoustique Bestimmung von Emissions-Schalldruckpegeln am

d'émission au poste de travail et en d'autres positions Arbeitsplatz und an anderen festgelegten Orten (ISO

spécifiées (ISO 11200:2014) 11200:2014)
This European Standard was approved by CEN on 17 April 2014.

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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,

Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, 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: Avenue Marnix 17, B-1000 Brussels

© 2014 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 11200:2014 E

worldwide for CEN national Members.
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SIST EN ISO 11200:2014
EN ISO 11200:2014 (E)
Contents Page

Foreword ..............................................................................................................................................................3

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SIST EN ISO 11200:2014
EN ISO 11200:2014 (E)
Foreword

This document (EN ISO 11200:2014) 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 2014, and conflicting national standards shall be withdrawn

at the latest by November 2014.

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

rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights.

This document supersedes EN ISO 11200:2009.

This document has been prepared under a mandate given to CEN by the European Commission and the

European Free Trade Association, and supports essential requirements of EU Directive(s).

For relationship with EU Directive(s), see informative Annex ZA, which is an integral part of this document.

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, Former Yugoslav Republic of Macedonia, France, Germany, Greece,

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

Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom.

Endorsement notice

The text of ISO 11200:2014 has been approved by CEN as EN ISO 11200:2014 without any modification.

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SIST EN ISO 11200:2014
EN ISO 11200:2014 (E)
Annex ZA
(informative)
Relationship between this European Standard and the Essential
Requirements of EU Directive 2006/42/EC on machinery

This European Standard has been prepared under a mandate given to CEN by the European Commission

and the European Free Trade Association to provide a means of conforming to Essential Requirements of the

New Approach Directive 2006/42/EC on machinery.

Once this standard is cited in the Official Journal of the European Union under that Directive and has been

implemented as a national standard in at least one Member State, compliance with the normative clauses of

this standard confers, within the limits of the scope of this standard, a presumption of conformity with the

relevant Essential Requirements of that Directive and associated EFTA regulations.

WARNING — Other requirements and other EU Directives may be applicable to the product(s) falling

within the scope of this standard.
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SIST EN ISO 11200:2014
INTERNATIONAL ISO
STANDARD 11200
Second edition
2014-06-01
Acoustics — Noise emitted by
machinery and equipment —
Guidelines for the use of basic
standards for the determination of
emission sound pressure levels at a
work station and at other specified
positions
Acoustique — Bruit émis par les machines et équipements — Guide
d’utilisation des normes de base pour la détermination des niveaux
de pression acoustique d’émission au poste de travail et en d’autres
positions spécifiées
Reference number
ISO 11200:2014(E)
ISO 2014
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SIST EN ISO 11200:2014
ISO 11200:2014(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2014

All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form

or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior

written permission. Permission can be requested from either ISO at the address below or ISO’s member body in the country of

the requester.
ISO copyright office
Case postale 56 • CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail [e-mail]
Web www.iso.org
Published in Switzerland
ii © ISO 2014 – All rights reserved
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SIST EN ISO 11200:2014
ISO 11200:2014(E)
Contents Page

Foreword ........................................................................................................................................................................................................................................iv

Introduction ..................................................................................................................................................................................................................................v

1 Scope ................................................................................................................................................................................................................................. 1

2 Normative references ...................................................................................................................................................................................... 1

3 Terms and definitions ..................................................................................................................................................................................... 2

4 Emission sound pressure level at work stations and other specified positions ................................8

4.1 Physical background .......................................................................................................................................................................... 8

4.2 Difference between noise exposure level of persons and noise emission level .............................. 9

4.3 Difference between sound power level of machinery and sound pressure level .......................... 9

4.4 Reasons for determining the emission sound pressure level ......................................................................... 9

4.5 How the source directivity is handled in the ISO 11201, ISO 11202, ISO 11203, ISO 11204

and ISO 11205 group ......................................................................................................................................................................10

5 Overview of the methods offered in the ISO 11201, ISO 11202, ISO 11203, ISO 11204 and

ISO 11205 group for determining the emission sound pressure level at work stations and

other specified positions ..........................................................................................................................................................................11

6 Selection of the most appropriate method from the group ..................................................................................15

6.1 Quantities to be measured and determined ...............................................................................................................15

6.2 Considerations affecting choice of method .................................................................................................................15

6.3 Considerations for the selection of the most appropriate method .........................................................18

6.4 Synopses ....................................................................................................................................................................................................18

7 Selection of specified positions ..........................................................................................................................................................22

8 Treatment of measurement uncertainty in ISO 11201, 11202 and 11204 ..........................................22

Annex A (informative) Test site and environmental correction K — Some guidance ..................................24

Annex B (informative) Case studies ....................................................................................................................................................................26

Bibliography .............................................................................................................................................................................................................................37

© ISO 2014 – All rights reserved iii
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SIST EN ISO 11200:2014
ISO 11200:2014(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.

The procedures used to develop this document and those intended for its further maintenance are

described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the

different types of ISO documents should be noted. This document was drafted in accordance with the

editorial rules of the ISO/IEC Directives, Part 2. www.iso.org/directives

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. Details of

any patent rights identified during the development of the document will be in the Introduction and/or

on the ISO list of patent declarations received. www.iso.org/patents

Any trade name used in this document is information given for the convenience of users and does not

constitute an endorsement.

For an explanation on the meaning of ISO specific terms and expressions related to conformity

assessment, as well as information about ISO’s adherence to the WTO principles in the Technical Barriers

to Trade (TBT) see the following URL: Foreword - Supplementary information

The committee responsible for this document is ISO/TC 43, Acoustics, Subcommittee SC 1, Noise.

This second edition cancels and replaces the first edition (ISO 11200:1995), which has been technically

revised. It also incorporates the Technical Corrigendum ISO 11200:1995/Corr.1:1997.

iv © ISO 2014 – All rights reserved
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SIST EN ISO 11200:2014
ISO 11200:2014(E)
Introduction

0.1 For many users of machinery and equipment, the control of noise is a major issue which requires

effective exchange of acoustical information among the several parties concerned. These include the

manufacturer, installer and user of the machinery or equipment. This acoustical information is obtained

from measurements. The main flow of information goes from the manufacturer to the user.

These measurements are useful only if the conditions under which they are carried out are specified,

if they yield defined acoustical quantities, and if they are carried out using standardized instruments.

Two quantities which complement one another can be used to describe the sound emission of machinery

or equipment: the sound power level and the emission sound pressure level at a specified position. The

International Standards which describe the basic methods of determining the sound power level are

[2]

ISO 3740, ISO 3741, ISO 3743 (all parts), ISO 3744, ISO 3745, ISO 3746 and ISO 3747 (determination from

sound pressure level measurements), and ISO 9614-1, ISO 9614-2 and ISO 9614-3 (determination from

sound intensity measurements). This International Standard introduces a group of five International

Standards describing various methods for determining emission sound pressure levels of machinery

and equipment taking into account possible situations for the source under test (mobile machine, fixed

machine, various test rooms, various instrumentations, different kinds of work stations, etc.).

It is not the intention of this group of International Standards to describe procedures for measuring the

[4]

occupational noise exposure of workers; for occupational noise exposure, see ISO 9612.

0.2 Emission sound pressure levels in conjunction with sound power levels are used for declaration

of the noise emitted under the defined conditions, verification of declared values, comparison of the

noise emitted by machinery of various types and sizes, comparison with limits specified in a purchasing

contract or a regulation, engineering work to reduce the noise emission of machinery, and prediction of

noise exposure at the specified positions.

Included in this group of International Standards are three, which describe procedures for measuring

emission sound pressure levels directly, in different test environments (ISO 11201, ISO 11202 and

ISO 11204), a fourth (ISO 11203), which gives procedures for determining emission sound pressure

levels from the sound power level and a fifth (ISO 11205), which gives a procedure for determining the

emission sound pressure level from measured values of the sound intensity level.

0.3 In general, these sound pressure levels are different from those which occur if the machinery or

equipment operates in its installed surroundings, where the environment influences the sound pressure

level at work stations or other specified positions. The selection of standards for the determination of

the sound power level can, for practical reasons, have consequences on the selection of standards for

the determination of the emission sound pressure level. It is preferable to make the choice of standards

concurrently with respect to the two noise emission quantities.

0.4 Standards in the ISO 11201, ISO 11202, ISO 11203, ISO 11204 and ISO 11205 group are often used

in practice through their reference in standardized noise test codes (see 3.25). If a particular noise test

code exists for a family of machinery, it is intended that it be used. For drafting a noise test code, it is

[6]
recommended to be familiar with ISO 12001.

0.5 The reasons for revising the ISO 11201, ISO 11202, ISO 11203, ISO 11204 and ISO 11205 group were

manifold:

— the need arose to introduce a grade 1 method into the group in order to enhance the similarity with

the ISO 3741, ISO 3743 (all parts), ISO 3744, ISO 3745, ISO 3746 and ISO 3747 group of International

Standards on the determination of sound power level;

— feedback from experience with the use of the group showed that the ISO 11202 method gave more

precise results than initially thought, hence the introduction into ISO 11202 of the possibility to get

grade 2 results;

— as source directivity plays a key role with regard to the emission sound pressure level, pragmatism

led to introduce this parameter into the ISO 11202 and ISO 11204 methods;
© ISO 2014 – All rights reserved v
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SIST EN ISO 11200:2014
ISO 11200:2014(E)

— as measurement uncertainty was becoming a more and more central issue, the need arose to address

the issue again in the light of the experience gained with the use of ISO/IEC GUIDE 98-3.

No research was carried out in order to revise the ISO 11201, ISO 11202, ISO 11203, ISO 11204 and

ISO 11205 group. Only existing knowledge was used.
vi © ISO 2014 – All rights reserved
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SIST EN ISO 11200:2014
INTERNATIONAL STANDARD ISO 11200:2014(E)
Acoustics — Noise emitted by machinery and equipment
— Guidelines for the use of basic standards for the
determination of emission sound pressure levels at a work
station and at other specified positions
1 Scope

This International Standard is the frame standard introducing the basic group, ISO 11201, ISO 11202,

ISO 11203, ISO 11204 and ISO 11205, on the determination of emission sound pressure levels at work

stations and other specified positions. It gives guidance for:
— facilitating the writing of noise test codes;

— providing physical explanations of this noise emission quantity compared to other noise

quantities (see 4.1 to 4.3);

— comparing the different measurement methods offered by the group (see Table 1);

— facilitating the choice of the most appropriate method(s) in typical practical situations (Clause 6).

This International Standard is largely based on flow charts and tables. Case studies are described.

The guidance given applies to airborne sound only. It is for use in noise testing, in general, and in the

preparation of noise test codes, in particular.

A standardized noise test code is intended to select standards from the ISO 11201, ISO 11202, ISO 11203,

ISO 11204 and ISO 11205 group, which are the most appropriate to the machinery family it covers, and

which give detailed requirements on mounting and operating conditions for the particular family, as well

as the location of the work station(s) and other specified positions as prescribed in these International

Standards.

The data so obtained can be used for the declaration and verification of emission sound pressure levels,

[3]
e.g. as specified in ISO 4871.
2 Normative references

The following documents, in whole or in part, are normatively referenced in this document and are

indispensable for its application. For dated references, only the edition cited applies. For undated

references, the latest edition of the referenced document (including any amendments) applies.

ISO 3741, Acoustics — Determination of sound power levels and sound energy levels of noise sources using

sound pressure — Precision methods for reverberation test rooms

ISO 3743-1, Acoustics — Determination of sound power levels and sound energy levels of noise sources

using sound pressure — Engineering methods for small movable sources in reverberant fields — Part 1:

Comparison method for a hard-walled test room

ISO 3743-2, Acoustics — Determination of sound power levels of noise sources using sound pressure —

Engineering methods for small, movable sources in reverberant fields — Part 2: Methods for special

reverberation test rooms

ISO 3744, Acoustics — Determination of sound power levels and sound energy levels of noise sources using

sound pressure — Engineering methods for an essentially free field over a reflecting plane

© ISO 2014 – All rights reserved 1
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SIST EN ISO 11200:2014
ISO 11200:2014(E)

ISO 3745, Acoustics — Determination of sound power levels and sound energy levels of noise sources using

sound pressure — Precision methods for anechoic rooms and hemi-anechoic rooms

ISO 3746, Acoustics — Determination of sound power levels and sound energy levels of noise sources using

sound pressure — Survey method using an enveloping measurement surface over a reflecting plane

ISO 3747, Acoustics — Determination of sound power levels and sound energy levels of noise sources using

sound pressure — Engineering/survey methods for use in situ in a reverberant environment

ISO 9614-1, Acoustics — Determination of sound power levels of noise sources using sound intensity —

Part 1: Measurement at discrete points

ISO 9614-2, Acoustics — Determination of sound power levels of noise sources using sound intensity —

Part 2: Measurement by scanning

ISO 9614-3, Acoustics — Determination of sound power levels of noise sources using sound intensity —

Part 3: Precision method for measurement by scanning

ISO 11201:2010, Acoustics — Noise emitted by machinery and equipment — Determination of emission

sound pressure levels at a work station and at other specified positions in an essentially free field over a

reflecting plane with negligible environmental corrections

ISO 11202:2010, Acoustics — Noise emitted by machinery and equipment — Determination of emission

sound pressure levels at a work station and at other specified positions applying approximate environmental

corrections

ISO 11203, Acoustics — Noise emitted by machinery and equipment — Determination of emission sound

pressure levels at a work station and at other specified positions from the sound power level

ISO 11204:2010, Acoustics — Noise emitted by machinery and equipment — Determination of emission

sound pressure levels at a work station and at other specified positions applying accurate environmental

corrections

ISO 11205, Acoustics — Noise emitted by machinery and equipment — Engineering method for the

determination of emission sound pressure levels in situ at the work station and at other specified positions

using sound intensity

ISO/IEC Guide 98-3, Uncertainty of measurement — Part 3: Guide to the expression of uncertainty in

measurement (GUM:1995)
IEC 60942, Electroacoustics — Sound calibrators

IEC 61043, Electroacoustics — Instruments for the measurement of sound intensity — Measurement with

pairs of pressure sensing microphones
IEC 61260, Electroacoustics — Octave-band and fractional-octave-band filters
IEC 61672-1, Electroacoustics — Sound level meters — Part 1: Specifications
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
emission

airborne sound radiated by a well-defined noise source (e.g. the machine under test)

Note 1 to entry: Noise emission descriptors can be incorporated into a product label and/or product specification.

The basic noise emission descriptors are the sound power level of the source itself and the emission sound

pressure levels at a work station and/or at other specified positions (if any) in the vicinity of the source.

[SOURCE: ISO 11201:2010, 3.1]
2 © ISO 2014 – All rights reserved
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SIST EN ISO 11200:2014
ISO 11200:2014(E)
3.2
emission sound pressure

sound pressure, at a work station or another specified position near a noise source, when the source is

in operation under specified operating and mounting conditions on a reflecting plane surface, excluding

the effects of background noise as well as the effects of reflections other than those from the plane or

planes permitted for the purpose of the test
Note 1 to entry: Emission sound pressure is expressed in pascals.
[SOURCE: ISO 11201:2010, 3.2]
3.3
emission sound pressure level

ten times the logarithm to the base 10 of the ratio of the square of the emission sound pressure, p, to the

square of a reference value, p , expressed in decibels
L =10lg dB
where the reference value, p , is 20 µPa

Note 1 to entry: The emission sound pressure level is determined at a work station or another specified position in

accordance with either a noise test code for a specific family of machines or, if no noise test code exists, one of the

standards of the group (i.e. this International Standard along with ISO 11201, ISO 11202, ISO 11203, ISO 11204

and ISO 11205).

[SOURCE: ISO 11201:2010, 3.3, modified — In Note 1, the reference numbers of the group of standards

have been written in full.]
3.4
time-averaged emission sound pressure level
p,T

ten times the logarithm to the base 10 of the ratio of the time average of the square of the emission sound

pressure, p, during a stated time interval of duration, T (starting at t and ending at t ), to the square of

1 2
a reference value, p , expressed in decibels
 
1 pt()dt
 
L =10lg dB
pT,
 
 
 1 
where the reference value, p , is 20 µPa

Note 1 to entry: For simplicity of notation, the subscript T is omitted throughout the following text.

Note 2 to entry: If specific frequency and time weightings as specified in IEC 61672–1 and/or specific frequency

bands are applied, this is indicated by appropriate subscripts; e.g. L denotes the A-weighted emission sound

pressure level.

Note 3 to entry: The formula is equivalent to that for the environmental noise descriptor “equivalent continuous

[1]

sound pressure level” (ISO 1996-1 ). However, the emission quantity defined above is used to characterize the

noise emitted by a source under test and assumes that standardized measurement and operating conditions as

well as a controlled acoustical environment are used for the measurements.

Note 4 to entry: ISO 11205 uses L instead of L and replaces p by the magnitude of the intensity vector, I , and

I p,T
2 −12 2
p by I = 10 W/m .
0 0

[SOURCE: ISO 11201:2010, 3.4, modified — Notes 1 to 3 have been renumbered; Note 4 has been added.]

© ISO 2014 – All rights reserved 3
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SIST EN ISO 11200:2014
ISO 11200:2014(E)
3.5
peak emission sound pressure
peak
greatest absolute emission sound pressure during a stated time interval
Note 1 to entry: Peak emission sound pressure is expressed in pascals.

Note 2 to entry: A peak emission sound pressure may arise from a positive or negative sound pressure.

[SOURCE: ISO 11201:2010, 3.5]
3.6
peak emission sound pressure level
p,peak

ten times the logarithm to the base 10 of the ratio of the square of the peak emission sound pressure,

p , to the square of a reference value, p , expressed in decibels
peak 0
peak
L =10lg dB
p,peak
where the reference value, p , is 20 µPa

Note 1 to entry: The peak emission sound pressure level is usually C-weighted and denoted by L .

pC,peak
[SOURCE: ISO 11201:2010, 3.6]
3.7
single event emission sound pressure level

ten times the logarithm to the base 10 of the ratio of the integral of the square of the emission sound

pressure, p, of an isolated single sound event (burst of sound or transient sound) of specified duration

...