SIST EN ISO 5114-1:2024
(Main)Acoustics - Determination of uncertainties associated with sound emission measures - Part 1: Sound power levels determined from sound pressure measurements (ISO 5114-1:2024)
Acoustics - Determination of uncertainties associated with sound emission measures - Part 1: Sound power levels determined from sound pressure measurements (ISO 5114-1:2024)
This document gives guidance on the determination of (measurement) uncertainties of sound power levels determined according to ISO 3741, ISO 3743-1, ISO 3743-2, ISO 3744, ISO 3745, ISO 3746 and ISO 3747
Akustik - Bestimmung der Unsicherheiten von Schallemissionsmessgrößen - Teil 1: Bestimmung von Schallleistungspegeln aus Schalldruckmessungen (ISO 5114-1:2024)
Dieses Dokument enthält Leitlinien für die Bestimmung der (Mess-)Unsicherheiten von Schallleistungspegeln, die nach ISO 3741, ISO 3743 1, ISO 3743 2, ISO 3744, ISO 3745, ISO 3746, ISO 3747 oder nach einer auf diesen Messnormen basierenden Prüfvorschrift ermittelt wurden.
Acoustique - Détermination des incertitudes associées aux mesurages de l’émission sonore - Partie 1: Niveaux de puissance acoustique déterminés à partir des mesurages de pression acoustique (ISO 5114-1:2024)
Le présent document fournit des recommandations pour la détermination des incertitudes de mesure des niveaux de puissance acoustique déterminés conformément à l’ISO 3741, l’ISO 3743-1, l’ISO 3743-2, l’ISO 3744, l’ISO 3745, l’ISO 3746, l’ISO 3747 ou un code d’essai acoustique fondé sur l’une de ces normes de mesure.
Akustika - Določanje negotovosti, povezane z meritvami zvočnih emisij - 1. del: Ravni zvočne moči, določene na podlagi meritev zvočnega tlaka (ISO 5114-1:2024)
General Information
Standards Content (Sample)
SLOVENSKI STANDARD
01-september-2024
Akustika - Določanje negotovosti, povezane z meritvami zvočnih emisij - 1. del:
Ravni zvočne moči, določene na podlagi meritev zvočnega tlaka (ISO 5114-1:2024)
Acoustics - Determination of uncertainties associated with sound emission measures -
Part 1: Sound power levels determined from sound pressure measurements (ISO 5114-
1:2024)
Akustik - Bestimmung der Unsicherheiten von Schallemissionsmessgrößen - Teil 1:
Bestimmung von Schallleistungspegeln aus Schalldruckmessungen (ISO 5114-1:2024)
Acoustique - Détermination des incertitudes associées aux mesurages de l’émission
sonore - Partie 1: Niveaux de puissance acoustique déterminés à partir des mesurages
de pression acoustique (ISO 5114-1:2024)
Ta slovenski standard je istoveten z: EN ISO 5114-1:2024
ICS:
17.140.01 Akustična merjenja in Acoustic measurements and
blaženje hrupa na splošno noise abatement in general
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EN ISO 5114-1
EUROPEAN STANDARD
NORME EUROPÉENNE
June 2024
EUROPÄISCHE NORM
ICS 17.140.01
English Version
Acoustics - Determination of uncertainties associated with
sound emission measures - Part 1: Sound power levels
determined from sound pressure measurements (ISO
5114-1:2024)
Acoustique - Détermination des incertitudes associées Akustik - Bestimmung der Unsicherheiten von
aux mesurages de l'émission sonore - Partie 1: Niveaux Schallemissionsmessgrößen - Teil 1: Bestimmung von
de puissance acoustique déterminés à partir des Schallleistungspegeln aus Schalldruckmessungen (ISO
mesurages de pression acoustique (ISO 5114-1:2024) 5114-1:2024)
This European Standard was approved by CEN on 14 June 2024.
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, Türkiye 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
© 2024 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 5114-1:2024 E
worldwide for CEN national Members.
Contents Page
European foreword . 3
European foreword
This document (EN ISO 5114-1:2024) 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 December 2024, and conflicting national standards
shall be withdrawn at the latest by December 2024.
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.
Any feedback and questions on this document should be directed to the users’ national standards
body/national committee. A complete listing of these bodies can be found on the CEN website.
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, Türkiye and the
United Kingdom.
Endorsement notice
The text of ISO 5114-1:2024 has been approved by CEN as EN ISO 5114-1:2024 without any
modification.
International
Standard
ISO 5114-1
First edition
Acoustics — Determination of
2024-06
uncertainties associated with sound
emission measures —
Part 1:
Sound power levels determined
from sound pressure measurements
Acoustique — Détermination des incertitudes associées aux
mesurages de l’émission sonore —
Partie 1: Niveaux de puissance acoustique déterminés à partir des
mesurages de pression acoustique
Reference number
ISO 5114-1:2024(en) © ISO 2024
ISO 5114-1:2024(en)
© ISO 2024
All rights reserved. Unless otherwise specified, or required in the context of its implementation, 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
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii
ISO 5114-1:2024(en)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 General concept to describe the uncertainty of measured sound power levels . 2
5 Determination of σ .3
omc
Determination of σ by round robin tests .4
R0
Detailed uncertainty budget to determine σ .6
R0
Determination of σ .7
tot
Annex A (informative) Detailed uncertainty budget for sound power determinations in
(approximated) free fields according to the direct enveloping method . 9
Annex B (informative) Detailed uncertainty budget for sound power determinations in
(approximated) diffuse fields according to the direct method . 17
Annex C (informative) Detailed uncertainty budget for sound power determinations using a
reference sound source .22
Bibliography .26
iii
ISO 5114-1:2024(en)
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 (see www.iso.org/directives).
ISO draws attention to the possibility that the implementation of this document may involve the use of (a)
patent(s). ISO takes no position concerning the evidence, validity or applicability of any claimed patent
rights in respect thereof. As of the date of publication of this document, ISO had not received notice of (a)
patent(s) which may be required to implement this document. However, implementers are cautioned that
this may not represent the latest information, which may be obtained from the patent database available at
www.iso.org/patents. ISO shall not be held responsible for identifying any or all such patent rights.
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and expressions
related to conformity assessment, as well as information about ISO's adherence to the World Trade
Organization (WTO) principles in the Technical Barriers to Trade (TBT), see www.iso.org/iso/foreword.html.
This document was prepared by Technical Committee ISO/TC 43, Acoustics, Subcommittee SC 1, Noise, in
collaboration with the European Committee for Standardization (CEN) Technical Committee CEN/TC 211,
Acoustics, in accordance with the Agreement on technical cooperation between ISO and CEN (Vienna
Agreement).
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www.iso.org/members.html.
iv
ISO 5114-1:2024(en)
Introduction
An assessment of uncertainties that is comprehensible and close to reality is indispensable for reporting
and using measured sound power levels. Uncertainties are determined following the principles of
ISO/IEC Guide 98-3. This Guide specifies a detailed procedure for uncertainty evaluation that is based upon
a mathematical model of the measurement. The detailedness of the model can vary from the mere analysis
of the statistical spread of measured sound power levels up to an exhaustive characterisation of all relevant
physical phenomena. Different such models are described by this document.
v
International Standard ISO 5114-1:2024(en)
Acoustics — Determination of uncertainties associated with
sound emission measures —
Part 1:
Sound power levels determined from sound pressure
measurements
1 Scope
This document gives guidance on the determination of measurement uncertainties of sound power levels
determined according to ISO 3741, ISO 3743-1, ISO 3743-2, ISO 3744, ISO 3745, ISO 3746, ISO 3747 or
according to a noise test code based on one of these measurement standards.
2 Normative references
There are no normative references in this document.
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminology databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at https:// www .electropedia .org/
3.1
measurement result
value attributed to a particular quantity, obtained by following the complete set of instructions given in a
measurement procedure (the measured value), together with measurement uncertainty
Note 1 to entry: The measurement result can be expressed in terms of a sound power level in octave bands, one-third
octave bands or an A-weighted sound power level.
3.2
measurement unce
...
SLOVENSKI STANDARD
oSIST prEN ISO 5114-1:2023
01-marec-2023
Akustika - Določanje negotovosti, povezane z meritvami zvočnih emisij - 1. del:
Ravni zvočne moči, določene na podlagi meritev zvočnega tlaka (ISO/DIS 5114-
1:2023)
Acoustics - Determination of uncertainties associated with sound emission measures -
Part 1: Sound power levels determined from sound pressure measurements (ISO/DIS
5114-1:2023)
Akustik - Bestimmung der Unsicherheiten von Schallemissionsmessgrößen - Teil 1:
Bestimmung von Schallleistungspegeln aus Schalldruckmessungen (ISO/DIS 5114-
1:2023)
Acoustique - Détermination des incertitudes associées aux mesurages de l’émission
sonore - Partie 1: Niveaux de puissance acoustique déterminés à partir des mesurages
de pression acoustique (ISO/DIS 5114-1:2023)
Ta slovenski standard je istoveten z: prEN ISO 5114-1
ICS:
17.140.01 Akustična merjenja in Acoustic measurements and
blaženje hrupa na splošno noise abatement in general
oSIST prEN ISO 5114-1:2023 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
oSIST prEN ISO 5114-1:2023
oSIST prEN ISO 5114-1:2023
DRAFT INTERNATIONAL STANDARD
ISO/DIS 5114-1
ISO/TC 43/SC 1 Secretariat: DIN
Voting begins on: Voting terminates on:
2023-01-05 2023-03-30
Acoustics — Determination of uncertainties associated
with sound emission measures —
Part 1:
Sound power levels determined from sound pressure
measurements
ICS: 17.140.01
This document is circulated as received from the committee secretariat.
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENT AND APPROVAL. IT IS
ISO/CEN PARALLEL PROCESSING
THEREFORE SUBJECT TO CHANGE AND MAY
NOT BE REFERRED TO AS AN INTERNATIONAL
STANDARD UNTIL PUBLISHED AS SUCH.
IN ADDITION TO THEIR EVALUATION AS
BEING ACCEPTABLE FOR INDUSTRIAL,
TECHNOLOGICAL, COMMERCIAL AND
USER PURPOSES, DRAFT INTERNATIONAL
STANDARDS MAY ON OCCASION HAVE TO
BE CONSIDERED IN THE LIGHT OF THEIR
POTENTIAL TO BECOME STANDARDS TO
WHICH REFERENCE MAY BE MADE IN
Reference number
NATIONAL REGULATIONS.
ISO/DIS 5114-1:2023(E)
RECIPIENTS OF THIS DRAFT ARE INVITED
TO SUBMIT, WITH THEIR COMMENTS,
NOTIFICATION OF ANY RELEVANT PATENT
RIGHTS OF WHICH THEY ARE AWARE AND TO
PROVIDE SUPPORTING DOCUMENTATION. © ISO 2023
oSIST prEN ISO 5114-1:2023
ISO/DIS 5114-1:2023(E)
DRAFT INTERNATIONAL STANDARD
ISO/DIS 5114-1
ISO/TC 43/SC 1 Secretariat: DIN
Voting begins on: Voting terminates on:
Acoustics — Determination of uncertainties associated
with sound emission measures —
Part 1:
Sound power levels determined from sound pressure
measurements
ICS: 17.140.01
This document is circulated as received from the committee secretariat.
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENT AND APPROVAL. IT IS
© ISO 2023
ISO/CEN PARALLEL PROCESSING
THEREFORE SUBJECT TO CHANGE AND MAY
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
NOT BE REFERRED TO AS AN INTERNATIONAL
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on STANDARD UNTIL PUBLISHED AS SUCH.
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
IN ADDITION TO THEIR EVALUATION AS
or ISO’s member body in the country of the requester. BEING ACCEPTABLE FOR INDUSTRIAL,
TECHNOLOGICAL, COMMERCIAL AND
ISO copyright office
USER PURPOSES, DRAFT INTERNATIONAL
CP 401 • Ch. de Blandonnet 8
STANDARDS MAY ON OCCASION HAVE TO
BE CONSIDERED IN THE LIGHT OF THEIR
CH-1214 Vernier, Geneva
POTENTIAL TO BECOME STANDARDS TO
Phone: +41 22 749 01 11
WHICH REFERENCE MAY BE MADE IN
Reference number
Email: copyright@iso.org
NATIONAL REGULATIONS.
Website: www.iso.org ISO/DIS 5114-1:2022(E)
RECIPIENTS OF THIS DRAFT ARE INVITED
Published in Switzerland
TO SUBMIT, WITH THEIR COMMENTS,
NOTIFICATION OF ANY RELEVANT PATENT
RIGHTS OF WHICH THEY ARE AWARE AND TO
ii
PROVIDE SUPPORTING DOCUMENTATION. © ISO 2022
oSIST prEN ISO 5114-1:2023
ISO/DIS 5114-1:2022(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
4 General concept to describe the uncertainty of measured sound power levels .3
5 Determination of σ . 4
omc
6 Determination of σ by round robin tests . 5
R0
7 Detailed uncertainty budget to determine σ . 7
R0
8 Determination of σ .8
tot
Annex A (informative) Detailed uncertainty budget for sound power determinations in
(approximated) free fields according to the direct enveloping method .9
Annex B (informative) Detailed uncertainty budget for sound power determinations in
(approximated) diffuse fields according to the direct method .18
Annex C (informative) Detailed uncertainty budget for sound power determinations using
a reference sound source .23
Bibliography .27
iii
oSIST prEN ISO 5114-1:2023
ISO/DIS 5114-1:2022(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 (see 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 (see 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 voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO's adherence to the
World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see the following
URL: www.iso.org/iso/foreword.html.
This document was prepared by Technical Committee ISO/TC 43, Acoustics, Subcommittee SC 1, Noise.
iv
oSIST prEN ISO 5114-1:2023
ISO/DIS 5114-1:2022(E)
Introduction
An assessment of uncertainties that is comprehensible and close to reality is indispensable for reporting
and applying measured sound power levels. Uncertainties should preferably be determined following
the principles of ISO/IEC Guide 98-3. This Guide specifies a detailed procedure for the uncertainty
evaluation that is based upon a complete mathematical model of the measurement procedure. At the
current knowledge, it is impossible to formulate these models for sound power level measurements.
To come to uncertainties all the same, the concept of reproducibility is additionally described in this
document. This concept offers the possibility to state the uncertainty of a method and of measurements
carried out according to the method, based on the results of inter-laboratory measurements.
v
oSIST prEN ISO 5114-1:2023
oSIST prEN ISO 5114-1:2023
DRAFT INTERNATIONAL STANDARD ISO/DIS 5114-1:2022(E)
Acoustics — Determination of uncertainties associated
with sound emission measures —
Part 1:
Sound power levels determined from sound pressure
measurements
1 Scope
This document gives guidance on the determination of (measurement) uncertainties of sound power
levels determined according to ISO 3741, ISO 3743-1, ISO 3743-2, ISO 3744, ISO 3745, ISO 3746 and
ISO 3747.
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 3741:2010, Acoustics — Determination of sound power levels and sound energy levels of noise sources
using sound pressure — Precision methods for reverberation test rooms
ISO 3743-1:2010, 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 3743-2:1994, 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
1)
ISO/DIS 3744:—, Acoustics — Determination of sound power levels of noise sources using sound pressure
— Engineering methods for an essentially free field over a reflecting plane
ISO 3745:2012, 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 3746:2010, 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 3747:2010, 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 4871:1996, Acoustics — Declaration and verification of noise emission values of machinery and
equipment
ISO 5725 (all parts), Accuracy (trueness and precision) of measurement methods and results
ISO 12001:1996, Acoustics — Noise emitted by machinery and equipment — Rules for the drafting and
presentation of a noise test code
ISO/IEC Guide 98-3:2008, Uncertainty of measurement — Part 3: Guide to the expression of uncertainty in
measurement (GUM: 1995)
1) Under preparation. Stage at the time of the ballot: ISO/DIS 3744:2022
oSIST prEN ISO 5114-1:2023
ISO/DIS 5114-1:2022(E)
IEC 61260 (all parts), Electroacoustics — Octave-band and fractional-octave-band filters
IEC 61672-1:2013, 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
measurand
particular quantity subject to measurement, e.g. the sound power level of a particular sound source
determined according to ISO/DIS 3744:—
3.2
measurement result
value attributed to a measurand, obtained by following the complete set of instructions given in a
measurement procedure
Note 1 to entry: The measurement result may be a sound power level in octave bands, one-third octave bands or
an A-weighted sound power level.
3.3
uncertainty
parameter, associated with the result of a measurement, that characterizes the dispersion of the values
that can reasonably be attributed to the measurand
3.4
expanded uncertainty
U
quantity defining an interval about the result of a measurement that is expected to encompass a large
fraction of the distribution of values that can reasonably be attributed to the measurand
3.5
coverage factor
k
numerical factor used as a multiplier of the combined standard uncertainty in order to obtain an
expanded uncertainty
3.6
reproducibility condition
condition of measurement that includes different laboratories, operators, measuring systems, and
replicate measurements on the same or similar objects
3.7
standard deviation of reproducibi
...
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