Acoustics - Laboratory measurement of sound insulation of building elements - Part 2: Measurement of airborne sound insulation (ISO 10140-2:2021)

Akustik - Messung der Schalldämmung von Bauteilen im Prüfstand - Teil 2: Messung der Luftschalldämmung (ISO 10140-2:2021)

Dieses Dokument legt ein Verfahren zur Prüfstandmessung der Luftschalldämmung von Bauprodukten wie Wänden, Decken, Türen, Fenstern, Abschlüssen, Fassadenelementen, Fassaden, Verglasungen, kleinen techni¬schen Bauteilen, wie Luftdurchlässen, Lüftungspanelen, Außenlufteintritten, Kabelkanälen, Abdichtungs¬systemen an Übergängen und Kombinationen, wie z. B. Wänden oder Decken mit Vorsatzschalen, abgehängten Decken oder schwimmendem Estrich, fest.
Die Prüfergebnisse können genutzt werden, um die Schalldämmeigenschaften von Bauteilen zu vergleichen, Bauteile nach ihrer Schalldämmung zu klassifizieren, die Konstruktion von Bauprodukten zu unterstützen, die bestimmte akustische Eigenschaften aufweisen müssen, und um die Leistung im eingebauten Zustand im vollständigen Gebäude abzuschätzen.
Die Messungen werden in Prüfständen durchgeführt, in denen eine Schallübertragung über Flankenwege unterdrückt wird. Die Ergebnisse der nach diesem Dokument durchgeführten Messungen sind nicht direkt auf die Situation in der Praxis anwendbar, ohne dass andere Faktoren, wie Flankenübertragung, Randbedingun¬gen und Gesamtverlustfaktor, die die Schalldämmung beeinflussen können, berücksichtigt werden.

Acoustique - Mesurage en laboratoire de l'isolation acoustique des éléments de construction - Partie 2: Mesurage de l'isolation au bruit aérien (ISO 10140-2:2021)

Akustika - Laboratorijsko merjenje zvočne izolirnosti gradbenih elementov - 2. del: Merjenje izolirnosti pred zvokom v zraku (ISO 10140-2:2021)

General Information

Status
Published
Public Enquiry End Date
09-Sep-2020
Publication Date
29-Jun-2021
Technical Committee
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
14-Jun-2021
Due Date
19-Aug-2021
Completion Date
30-Jun-2021

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SLOVENSKI STANDARD
SIST EN ISO 10140-2:2021
01-september-2021
Nadomešča:
SIST EN ISO 10140-2:2010

Akustika - Laboratorijsko merjenje zvočne izolirnosti gradbenih elementov - 2. del:

Merjenje izolirnosti pred zvokom v zraku (ISO 10140-2:2021)

Acoustics - Laboratory measurement of sound insulation of building elements - Part 2:

Measurement of airborne sound insulation (ISO 10140-2:2021)

Akustik - Messung der Schalldämmung von Bauteilen im Prüfstand - Teil 2: Messung der

Luftschalldämmung (ISO 10140-2:2021)
Acoustique - Mesurage en laboratoire de l'isolation acoustique des éléments de

construction - Partie 2: Mesurage de l'isolation au bruit aérien (ISO 10140-2:2021)

Ta slovenski standard je istoveten z: EN ISO 10140-2:2021
ICS:
17.140.01 Akustična merjenja in Acoustic measurements and
blaženje hrupa na splošno noise abatement in general
91.060.01 Stavbni elementi na splošno Elements of buildings in
general
91.120.20 Akustika v stavbah. Zvočna Acoustics in building. Sound
izolacija insulation
SIST EN ISO 10140-2:2021 en,fr,de

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

---------------------- Page: 1 ----------------------
SIST EN ISO 10140-2:2021
---------------------- Page: 2 ----------------------
SIST EN ISO 10140-2:2021
EN ISO 10140-2
EUROPEAN STANDARD
NORME EUROPÉENNE
May 2021
EUROPÄISCHE NORM
ICS 91.120.20 Supersedes EN ISO 10140-2:2010
English Version
Acoustics - Laboratory measurement of sound insulation
of building elements - Part 2: Measurement of airborne
sound insulation (ISO 10140-2:2021)

Acoustique - Mesurage en laboratoire de l'isolation Akustik - Messung der Schalldämmung von Bauteilen

acoustique des éléments de construction - Partie 2: im Prüfstand - Teil 2: Messung der Luftschalldämmung

Mesurage de l'isolation au bruit aérien (ISO 10140- (ISO 10140-2:2021)
2:2021)
This European Standard was approved by CEN on 24 April 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 10140-2:2021 E

worldwide for CEN national Members.
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SIST EN ISO 10140-2:2021
EN ISO 10140-2:2021 (E)
Contents Page

European foreword ....................................................................................................................................................... 3

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SIST EN ISO 10140-2:2021
EN ISO 10140-2:2021 (E)
European foreword

This document (EN ISO 10140-2:2021) has been prepared by Technical Committee ISO/TC 43

"Acoustics" in collaboration with Technical Committee CEN/TC 126 “Acoustic properties of building

elements and of buildings” the secretariat of which is held by AFNOR.

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 2021, and conflicting national standards

shall be withdrawn at the latest by November 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 10140-2:2010.

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 10140-2:2021 has been approved by CEN as EN ISO 10140-2:2021 without any

modification.
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SIST EN ISO 10140-2:2021
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SIST EN ISO 10140-2:2021
INTERNATIONAL ISO
STANDARD 10140-2
Second edition
2021-04
Acoustics — Laboratory measurement
of sound insulation of building
elements —
Part 2:
Measurement of airborne sound
insulation
Acoustique — Mesurage en laboratoire de l'isolation acoustique des
éléments de construction —
Partie 2: Mesurage de l'isolation au bruit aérien
Reference number
ISO 10140-2:2021(E)
ISO 2021
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SIST EN ISO 10140-2:2021
ISO 10140-2:2021(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2021

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 2021 – All rights reserved
---------------------- Page: 8 ----------------------
SIST EN ISO 10140-2:2021
ISO 10140-2:2021(E)
Contents Page

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

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

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

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

3 Terms and definitions ..................................................................................................................................................................................... 1

4 Facilities and equipment .............................................................................................................................................................................. 3

5 Test procedure and evaluation .............................................................................................................................................................. 3

5.1 General procedure ............................................................................................................................................................................... 3

5.2 Sound field in the source room ................................................................................................................................................. 4

5.3 Data processing ...................................................................................................................................................................................... 4

5.4 Expression of results .......................................................................................................................................................................... 4

6 Test arrangement ................................................................................................................................................................................................. 5

6.1 General ........................................................................................................................................................................................................... 5

6.2 Full-size test opening......................................................................................................................................................................... 5

6.3 Reduced-size test opening ............................................................................................................................................................ 6

6.4 Reduced-size test elements .......................................................................................................................................................... 6

6.5 Small technical elements ................................................................................................................................................................ 6

7 Limits of performance .................................................................................................................................................................................... 7

7.1 Full-size openings ................................................................................................................................................................................. 7

7.2 Reduced-size openings .................................................................................................................................................................... 7

8 Measurement uncertainty .......................................................................................................................................................................... 8

9 Test report ................................................................................................................................................................................................................... 8

Annex A (normative) Measurement of sound transmission through the filler wall and any

flanking construction for small-sized or reduced-size test openings ...........................................................9

Annex B (informative) Form for the expression of results .........................................................................................................11

Bibliography .............................................................................................................................................................................................................................14

© ISO 2021 – All rights reserved iii
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SIST EN ISO 10140-2:2021
ISO 10140-2:2021(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 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 2,

Building acoustics, in collaboration with the European Committee for Standardization (CEN) Technical

Committee CEN/TC 126, Acoustic properties of building elements and of buildings, in accordance with the

Agreement on technical cooperation between ISO and CEN (Vienna Agreement).

This second edition cancels and replaces the first edition (ISO 10140-2:2010), which has been technically

revised.
The main changes compared to the previous edition are as follows:
— all references in the text have been updated;
— in Clause 2, the normative references have been updated;
— in Clause 3, the terms and definitions have been updated;
— in Clause 8, the title has been changed to “Measurement uncertainty”.
A list of all parts in the ISO 10140 series can be found on the ISO website.

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 2021 – All rights reserved
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SIST EN ISO 10140-2:2021
ISO 10140-2:2021(E)
Introduction

ISO 10140 (all parts) concerns laboratory measurement of the sound insulation of building elements

(see Table 1).

ISO 10140-1 specifies the application rules for specific elements and products, including specific

requirements for the preparation and mounting of the test elements, and for the operating and test

conditions. This document and ISO 10140-3 contain the general procedures for airborne and impact

sound insulation measurements, respectively, and refer to ISO 10140-4 and ISO 10140-5 where

appropriate. For elements and products without a specific application rule described in ISO 10140-1, it is

possible to apply this document and ISO 10140-3. ISO 10140-4 contains basic measurement techniques

and processes. ISO 10140-5 contains requirements for test facilities and equipment. For the structure of

ISO 10140 (all parts), see Table 1.

ISO 10140 (all parts) was developed to improve the layout for laboratory measurements, ensure

consistency and simplify future changes and additions regarding mounting conditions of test elements

in laboratory and field measurements. ISO 10140 (all parts) aims at presenting a well-written and

arranged format for laboratory measurements.
ISO 10140-1 is planned to be updated with application rules for other products.
Table 1 — Structure and contents of ISO 10140 (all parts)
Relevant Main purpose, contents and use Detailed content
part of
ISO 10140

ISO 10140-1 It indicates the appropriate test procedure Appropriate references to ISO 10140-2 and

for elements and products. For certain types ISO 10140-3 and product-related, specific and

of element/product, it can contain addi- additional instructions on:
tional and more specific instructions about
— specific quantities measured;
quantities and test element size and about
preparation, mounting and operating condi-
— size of test element;
tions. Where no specific details are includ-
ed, the general guidelines are according to
— boundary and mounting conditions;
ISO 10140-2 and ISO 10140-3.
— conditioning, testing and operating
conditions;
— additional specifics for test report.

ISO 10140-2 It gives a procedure for airborne sound insu- — Definitions of main quantities measured

lation measurements according to ISO 10140-
— General mounting and boundary conditions
4 and ISO 10140-5. For products without
specific application rules, it is sufficiently
— General measurement procedure
complete and general for the execution of
measurements. However, for products with
— Data processing
specific application rules, measurements
are carried out according to ISO 10140-1, if
— Test report (general points)
available.

ISO 10140-3 It gives a procedure for impact sound insula- — Definitions of main quantities measured

tion measurements according to ISO 10140-
— General mounting and boundary conditions
4 and ISO 10140-5. For products without
specific application rules, it is sufficiently
— General measurement procedure
complete and general for the execution of
measurements. However, for products with
— Data processing
specific application rules, measurements
are carried out according to ISO 10140-1, if
— Test report (general points)
available.
© ISO 2021 – All rights reserved v
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SIST EN ISO 10140-2:2021
ISO 10140-2:2021(E)
Table 1 (continued)
Relevant Main purpose, contents and use Detailed content
part of
ISO 10140
ISO 10140-4 It gives all the basic measurement techniques — Definitions
and processes for measurement according
— Frequency range
to ISO 10140-2 and ISO 10140-3 or facility
qualifications according to ISO 10140-5. Much
— Microphone positions
of the content is implemented in software.
— SPL measurements
— Averaging, space and time
— Correction for background noise
— Reverberation time measurements
— Loss factor measurements
— Low-frequency measurements
— Radiated sound power by velocity
measurement

ISO 10140-5 It specifies all information needed to design, Test facilities, design criteria:

construct and qualify the laboratory facility,
— volumes, dimensions;
its additional accessories and measurement
equipment (hardware).
— flanking transmission;
— laboratory loss factor;
— maximum achievable sound reduction index;
— reverberation time;
— influence of lack of diffusivity in the
laboratory.
Test openings:
— standard openings for walls and floors;
— other openings (windows, doors, small
technical elements);
— filler walls in general.
Requirements for equipment:
— loudspeakers, number, positions;
— tapping machine and other impact sources;
— measurement equipment.
Reference constructions:
— basic elements for airborne and impact
insulation improvement;
— corresponding reference performance
curves.
vi © ISO 2021 – All rights reserved
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SIST EN ISO 10140-2:2021
INTERNATIONAL STANDARD ISO 10140-2:2021(E)
Acoustics — Laboratory measurement of sound insulation
of building elements —
Part 2:
Measurement of airborne sound insulation
1 Scope

This document specifies a laboratory method for measuring the airborne sound insulation of building

products, such as walls, floors, doors, windows, shutters, façade elements, façades, glazing, small

technical elements, for instance transfer air devices, airing panels (ventilation panels), outdoor air

intakes, electrical raceways, transit sealing systems and combinations, for example walls or floors with

linings, suspended ceilings or floating floors.

The test results can be used to compare the sound insulation properties of building elements, classify

elements according to their sound insulation capabilities, help design building products which require

certain acoustic properties and estimate the in situ performance in complete buildings.

The measurements are performed in laboratory test facilities in which sound transmission via flanking

paths is suppressed. The results of measurements made in accordance with this document are not

applicable directly to the field situation without accounting for other factors affecting sound insulation,

such as flanking transmission, boundary conditions and total loss factor.
2 Normative references

The following documents are referred to in the text in such a way that some or all of their content

constitutes requirements of this document. For dated references, only the edition cited applies. For

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

ISO 717-1, Acoustics — Rating of sound insulation in buildings and of building elements — Part 1: Airborne

sound insulation

ISO 10140-1, Acoustics — Laboratory measurement of sound insulation of building elements — Part 1:

Application rules for specific products

ISO 10140-4, Acoustics — Laboratory measurement of sound insulation of building elements — Part 4:

Measurement procedures and requirements

ISO 10140-5, Acoustics — Laboratory measurement of sound insulation of building elements — Part 5:

Requirements for test facilities and equipment

ISO 12999-1, Acoustics — Determination and application of measurement uncertainties in building

acoustics — Part 1: Sound insulation
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.

ISO and IEC maintain terminological databases for use in standardization at the following addresses:

— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at http:// www .electropedia .org/
© ISO 2021 – All rights reserved 1
---------------------- Page: 13 ----------------------
SIST EN ISO 10140-2:2021
ISO 10140-2:2021(E)
3.1
sound reduction index

ten times the common logarithm of the ratio of the sound power, W , that is incident on the test element

to the sound power, W , radiated by the test element to the other side, expressed by

R=10 lg (1)
Note 1 to entry: R is expressed in decibels.

Note 2 to entry: For laboratory measurements using sound pressure, the sound reduction index is calculated using:

RL=−L +10 lg (2)
where
L is the energy average sound pressure level in the source room, in decibels;

L is the energy average sound pressure level in the receiving room, in decibels;

S is the area of the free test opening in which the test element is installed, in square metres;

A is the equivalent sound absorption area in the receiving room, in square metres.

Note 3 to entry: The derivation of Formula (2) from Formula (1) assumes that the sound fields are diffuse and

that the only sound radiated into the receiving room is from the test element.

Note 4 to entry: The expression “sound transmission loss” (TL) is also in use in English-speaking countries. It is

equivalent to “sound reduction index”.

Note 5 to entry: Related quantities can be introduced in other documents or test codes, often by adding subscripts,

i.e. R for the sound reduction index as measured by intensity methods, R as the sound reduction index per unit

I s

length of slits or ΔR as the improvement in sound reduction index by linings or suspended ceilings.

3.2
apparent sound reduction index

ten times the common logarithm of the ratio of the sound power, W , that is incident on a test element to

the total sound power radiated into the receiving room if, in addition to the sound power, W , radiated

by the test element, the sound power, W , radiated by flanking elements or by other components is

significant, expressed by
 W 
R′=10 lg (3)
 
WW+
 
Note 1 to entry: R' is expressed in decibels.

Note 2 to entry: In general, the sound power transmitted into the receiving room consists of the sum of several

components. Also, in this case, under the assumption that there are diffuse sound fields in the two rooms, the

apparent sound reduction index is evaluated from Formula (4).
R'=−LL +10 lg (4)

Thus, in the apparent sound reduction index, the sound power transmitted into the receiving room is related to

the sound power that is incident on the test element, as in Formula (2), irrespective of the actual conditions of

transmission.
2 © ISO 2021 – All rights reserved
---------------------- Page: 14 ----------------------
SIST EN ISO 10140-2:2021
ISO 10140-2:2021(E)
3.3
element-normalized level difference
n,e

level difference corresponding to a reference value of absorption area in the receiving room with sound

transmission through the small technical element only, expressed by
 
DL=−L +10 lg (5)
 
n,e 12
 
where
L is the energy average sound pressure level in the source room, in decibels;

L is the energy average sound pressure level in the receiving room, in decibels;

A is the reference absorption area, in square metres (for the laboratory, A = 10 m );

0 0
A is the equivalent absorption area in the receiving room, in square metres
Note 1 to entry: D is expressed in decibels.
n,e

Note 2 to entry: To achieve a better signal-to-noise ratio, simultaneous measurements can be performed on more

than one element. When performing simultaneous measurements, replace Formula (5) by Formula (6):

 
DL=−L +10 lg (6)
n,e 12  
 
where
D is the element-normalized level difference of an individual element;
n,e
n is the number of installed elements.
3.4
small technical element

building element, excluding windows and doors, with an area of less than 1 m , which occurs in a certain

number of discrete sizes and transmits sound between two adjacent rooms or between one room and

the outdoors independently of any adjoining building elements
4 Facilities and equipment

Laboratory test facilities shall comply with the requirements given in ISO 10140-5.

The equipment used to generate the sound field shall meet the requirements given in ISO 10140-5.

Requirements for the equipment used to measure the sound level, and for calibration of that equipment,

are specified in ISO 10140-5.
5 Test procedure and evaluation
5.1 General procedure

Two horizontally or vertically adjacent rooms are used, one being designated the source room and the

other the receiving room. The test element is mounted in an opening in the partition between those

rooms (see Clause 6). In the source room, a diffuse sound field is generated by a moving loudspeaker

or loudspeakers at two or more fixed positions. The average sound pressure levels are measured in

the source and receiving rooms, normally in the frequency range covering the one-third octave bands

with centre frequencies from 100 Hz to 5 000 Hz (optionally down to 50 Hz). The equivalent sound

© ISO 2021 – All rights reserved 3
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SIST EN ISO 10140-2:2021
ISO 10140-2:2021(E)

absorption area in the receiving room is calculated from reverberation time measurements. From

the sound pressure level difference between the rooms, the quantities described in Clause 3 can be

evaluated by taking into account the equivalent absorption area and, where appropriate, the size or

number of test elements. The procedures used to determine the average sound pressure levels corrected

for background noise and the reverberation time are specified in ISO 10140-4.

People shall not be present in the source or receiving rooms during measurements to avoid affecting

the sound field.

In the case of sound insulation improvement systems, such as acoustical linings, this procedure is

repeated for the basic element and for the element with the lining under test.
5.2 Sound field in the source room

Qualification of the loudspeaker system, the number and positions of loudspeakers and the method of

operation shall be performed in accordance with ISO 10140-5.

When using a single sound source at two or more positions, these may be in the same room or the

measurements may be repeated in the opposite direction by changing source and receiving rooms

with one or more source positions in each room. The latter is not permitted if the test element has one

surface which is significantly more absorbent than the other (see 6.1).

The microphone positions in the source room shall be outside the direct sound field of the source and

the radiation characteristics of the sources shall be taken into account when determining microphone

positions, as specified in ISO 10140-4.
5.3 Data processing

Calculate the sound reduction index or the element-normalized level difference (as defined in Clause 3)

from the measured (and, if necessary, corrected) energy average sound pressure levels in the rooms

and the measured reverberation time, as described in ISO 10140-4.

If sound reduction indices or element-normalized level differences are needed in octave bands, these

values shall be calculated from the three one-third octave band values in each octave band using

Formula (7) or Formula (8):
3 −R /10
 1/3oct,n 
R =−10lg  (7
...

SLOVENSKI STANDARD
oSIST prEN ISO 10140-2:2020
01-september-2020

Akustika - Laboratorijsko merjenje zvočne izolirnosti gradbenih elementov - 2. del:

Merjenje izolirnosti pred zvokom v zraku (ISO/DIS 10140-2:2020)

Acoustics - Laboratory measurement of sound insulation of building elements - Part 2:

Measurement of airborne sound insulation (ISO/DIS 10140-2:2020)

Akustik - Messung der Schalldämmung von Bauteilen im Prüfstand - Teil 2: Messung der

Luftschalldämmung (ISO/DIS 10140-2:2020)
Acoustique - Mesurage en laboratoire de l'isolation acoustique des éléments de

construction - Partie 2: Mesurage de l'isolation au bruit aérien (ISO/DIS 10140-2:2020)

Ta slovenski standard je istoveten z: prEN ISO 10140-2
ICS:
17.140.01 Akustična merjenja in Acoustic measurements and
blaženje hrupa na splošno noise abatement in general
91.060.01 Stavbni elementi na splošno Elements of buildings in
general
91.120.20 Akustika v stavbah. Zvočna Acoustics in building. Sound
izolacija insulation
oSIST prEN ISO 10140-2:2020 en,fr,de

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

---------------------- Page: 1 ----------------------
oSIST prEN ISO 10140-2:2020
---------------------- Page: 2 ----------------------
oSIST prEN ISO 10140-2:2020
DRAFT INTERNATIONAL STANDARD
ISO/DIS 10140-2
ISO/TC 43/SC 2 Secretariat: DIN
Voting begins on: Voting terminates on:
2020-06-19 2020-09-11
Acoustics — Laboratory measurement of sound insulation
of building elements —
Part 2:
Measurement of airborne sound insulation

Acoustique — Mesurage en laboratoire de l'isolation acoustique des éléments de construction —

Partie 2: Mesurage de l'isolation au bruit aérien
ICS: 91.120.20
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oSIST prEN ISO 10140-2:2020
ISO/DIS 10140-2:2020(E)
Contents Page

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

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

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

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

3 Terms and definitions ..................................................................................................................................................................................... 1

4 Facilities and equipment .............................................................................................................................................................................. 3

5 Test procedure and evaluation .............................................................................................................................................................. 3

5.1 General procedure ............................................................................................................................................................................... 3

5.2 Sound field in the source room ................................................................................................................................................. 4

5.3 Data processing ...................................................................................................................................................................................... 4

5.4 Expression of results .......................................................................................................................................................................... 4

6 Test arrangement ................................................................................................................................................................................................. 5

6.1 General ........................................................................................................................................................................................................... 5

6.2 Full-size test opening......................................................................................................................................................................... 5

6.3 Reduced-size test opening ............................................................................................................................................................ 6

6.4 Reduced-size test elements .......................................................................................................................................................... 6

6.5 Small technical elements ................................................................................................................................................................ 6

7 Limits of performance .................................................................................................................................................................................... 7

7.1 Full-size openings ................................................................................................................................................................................. 7

7.2 Reduced-size openings .................................................................................................................................................................... 7

8 Measurement uncertainty .......................................................................................................................................................................... 8

9 Test report ................................................................................................................................................................................................................... 8

Annex A (normative) Measurement of sound transmission through the filler wall and any

flanking construction for small-sized or reduced-size test openings ........................................................10

Annex B (informative) Form for the expression of results .........................................................................................................12

Bibliography .............................................................................................................................................................................................................................14

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oSIST prEN ISO 10140-2:2020
ISO/DIS 10140-2:2020(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

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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

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expressions related to conformity assessment, as well as information about ISO's adherence to the

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iso/ foreword .html.

This document was prepared by Technical Committee ISO/TC 43, Acoustics, Subcommittee SC 2, Building

acoustics.

This second edition cancels and replaces the first edition (ISO 10140-2:2010, which has been technically

revised.
The main changes compared to the previous edition are as follows:
— normative references updated
— terms and definitions updated
— all references updated
— title of Clause 8 changed to “Measurement uncertainty”
A list of all parts in the ISO 10140 series can be found on the ISO website.

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.
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Introduction

ISO 10140 (all parts) concerns laboratory measurement of the sound insulation of building elements

(see Table 1).

ISO 10140-1 specifies the application rules for specific elements and products, including specific

requirements for preparation, mounting, operating and test conditions. This part of ISO 10140 and

ISO 10140-3 contain the general procedures for airborne and impact sound insulation measurements,

respectively, and refer to ISO 10140-4 and ISO 10140-5 where appropriate. For elements and products

without a specific application rule described in ISO 10140-1, it is possible to apply this part of ISO 10140

and ISO 10140-3. ISO 10140-4 contains basic measurement techniques and processes. ISO 10140-5

contains requirements for test facilities and equipment. For the structure of ISO 10140 (all parts), see

Table 1.

ISO 10140 (all parts) was created to improve the layout for laboratory measurements, ensure

consistency and simplify future changes and additions regarding mounting conditions of test elements

in laboratory and field measurements. It is intended for ISO 10140 (all parts) to present a well-written

and arranged format for laboratory measurements.
It is intended to update ISO 10140-1 with application rules for other products.
Table 1 — Structure and contents of ISO 10140 (all parts)
Relevant Main purpose, contents and use Detailed content
part of
ISO 10140

ISO 10140-1 It indicates the appropriate test procedure Appropriate references to ISO 10140-2 and

for elements and products. For certain types ISO 10140-3 and product-related, specific and

of element/product, it can contain addi- additional instructions on:
tional and more specific instructions about
— specific quantities measured;
quantities and test element size and about
preparation, mounting and operating condi-
— size of test element;
tions. Where no specific details are includ-
ed, the general guidelines are according to
— boundary and mounting conditions;
ISO 10140-2 and ISO 10140-3.
— conditioning, testing and operating
conditions;
— additional specifics for test report.

ISO 10140-2 It gives a complete procedure for airborne — Definitions of main quantities measured

sound insulation measurements accord-
— General mounting and boundary conditions
ing to ISO 10140-4 and ISO 10140-5. For
products without specific application rules,
— General measurement procedure
it is sufficiently complete and general for
the execution of measurements. However,
— Data processing
for products with specific application rules,
measurements are carried out according to
— Test report (general points)
ISO 10140-1, if available.

ISO 10140-3 It gives a complete procedure for impact — Definitions of main quantities measured

sound insulation measurements accord-
— General mounting and boundary conditions
ing to ISO 10140-4 and ISO 10140-5. For
products without specific application rules,
— General measurement procedure
it is sufficiently complete and general for
the execution of measurements. However,
— Data processing
for products with specific application rules,
measurements are carried out according to
— Test report (general points)
ISO 10140-1, if available.
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Table 1 (continued)
Relevant Main purpose, contents and use Detailed content
part of
ISO 10140
ISO 10140-4 It gives all the basic measurement techniques — Definitions
and processes for measurement according
— Frequency range
to ISO 10140-2 and ISO 10140-3 or facility
qualifications according to ISO 10140-5. Much
— Microphone positions
of the content is implemented in software.
— SPL measurements
— Averaging, space and time
— Correction for background noise
— Reverberation time measurements
— Loss factor measurements
— Low-frequency measurements
— Radiated sound power by velocity
measurement

ISO 10140-5 It specifies all information needed to design, Test facilities, design criteria:

construct and qualify the laboratory facility,
— volumes, dimensions;
its additional accessories and measurement
equipment (hardware).
— flanking transmission;
— laboratory loss factor;
— maximum achievable sound reduction index;
— reverberation time;
— influence of lack of diffusivity in the
laboratory.
Test openings:
— standard openings for walls and floors;
— other openings (windows, doors, small
technical elements);
— filler walls in general.
Requirements for equipment:
— loudspeakers, number, positions;
— tapping machine and other impact sources;
— measurement equipment.
Reference constructions:
— basic elements for airborne and impact
insulation improvement;
— corresponding reference performance
curves.
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oSIST prEN ISO 10140-2:2020
DRAFT INTERNATIONAL STANDARD ISO/DIS 10140-2:2020(E)
Acoustics — Laboratory measurement of sound insulation
of building elements —
Part 2:
Measurement of airborne sound insulation
1 Scope

This part of ISO 10140 specifies a laboratory method for measuring the airborne sound insulation of

building products, such as walls, floors, doors, windows, shutters, façade elements, façades, glazing,

small technical elements, for instance transfer air devices, airing panels (ventilation panels), outdoor

air intakes, electrical raceways, transit sealing systems and combinations, for example walls or floors

with linings, suspended ceilings or floating floors.

The test results can be used to compare the sound insulation properties of building elements, classify

elements according to their sound insulation capabilities, help design building products which require

certain acoustic properties and estimate the in situ performance in complete buildings.

The measurements are performed in laboratory test facilities in which sound transmission via flanking

paths is suppressed. The results of measurements made in accordance with this part of ISO 10140

are not applicable directly to the field situation without accounting for other factors affecting sound

insulation, such as flanking transmission, boundary conditions and total loss factor.

2 Normative references

The following documents are referred to in the text in such a way that some or all of their content

constitutes requirements of this document. For dated references, only the edition cited applies. For

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

ISO 12999-1, Acoustics — Determination and application of measurement uncertainties in building

acoustics — Part 1: Sound insulation

ISO 717-1, Acoustics — Rating of sound insulation in buildings and of building elements — Part 1: Airborne

sound insulation

ISO 10140-1, Acoustics — Laboratory measurement of sound insulation of building elements — Part 1:

Application rules for specific products

ISO/DIS 10140-4:2020, Acoustics — Laboratory measurement of sound insulation of building elements —

Part 4: Measurement procedures and requirements

ISO 10140-5, Acoustics — Laboratory measurement of sound insulation of building elements — Part 5:

Requirements for test facilities and equipment
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.

ISO and IEC maintain terminological databases for use in standardization at the following addresses:

— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at http:// www .electropedia .org/
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3.1
sound reduction index

ten times the common logarithm of the ratio of the sound power, W , that is incident on the test element

to the sound power, W , radiated by the test element to the other side
R=10lg (1)
Note 1 to entry: R is expressed in decibels.

For laboratory measurements using sound pressure, the sound reduction index is calculated using:

RL=−L +10lg (2)
where
L is the energy average sound pressure level in the source room, in decibels;

L is the energy average sound pressure level in the receiving room, in decibels;

S is the area of the free test opening in which the test element is installed, in square metres;

A is the equivalent sound absorption area in the receiving room, in square metres.

Note 2 to entry: The derivation of Equation (2) from Equation (1) assumes that the sound fields are diffuse and

that the only sound radiated into the receiving room is from the test element.

Note 3 to entry: The expression “sound transmission loss” (TL) is also in use in English-speaking countries. It is

equivalent to “sound reduction index”.

Note 4 to entry: Related quantities can be introduced in other documents or test codes, often by adding subscripts,

i.e. R for the sound reduction index as measured by intensity methods, R as the sound reduction index per unit

I s

length of slits or ΔR as the improvement in sound reduction index by linings or suspended ceilings.

3.2
apparent sound reduction index

ten times the common logarithm of the ratio of the sound power, W , that is incident on a test element to

the total sound power radiated into the receiving room if, in addition to the sound power, W , radiated

by the test element, the sound power, W , radiated by flanking elements or by other components is

significant
 
R =10lg (3)
 
WW+
 23 
Note 1 to entry: R' is expressed in decibels.

Note 2 to entry: In general, the sound power transmitted into the receiving room consists of the sum of several

components. Also, in this case, under the assumption that there are diffuse sound fields in the two rooms, the

apparent sound reduction index is evaluated from Equation (4).
R'=−LL +10 lg (4)

Thus, in the apparent sound reduction index, the sound power transmitted into the receiving room is related to

the sound power that is incident on the test element, as in Equation (2), irrespective of the actual conditions of

transmission.
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3.3
element-normalized level difference
n,e

level difference corresponding to a reference value of absorption area in the receiving room with

sound transmission through the small technical element only; this level difference is evaluated from

Equation (5)
 
DL=−L +10 lg (5)
 
n,e 12
 
where
L is the energy average sound pressure level in the source room, in decibels;

L is the energy average sound pressure level in the receiving room, in decibels;

A is the reference absorption area, in square metres (for the laboratory, A = 10 m );

0 0
A is the equivalent absorption area in the receiving room, in square metres.
Note 1 to entry: D is expressed in decibels.
n,e

Note 2 to entry: To achieve a better signal-to-noise ratio, simultaneous measurements can be performed on more

than one element. When performing simultaneous measurements, replace Equation (5) by Equation (6).

 
DL=−L +10 lg (6)
 
n,e 12
 
where
D is the element-normalized level difference of an individual element;
n,e
n is the number of installed elements.
3.4
small technical element

building element, excluding windows and doors, with an area of less than 1 m , which occurs in a certain

number of discrete sizes and transmits sound between two adjacent rooms or between one room and

the outdoors independently of any adjoining building elements
4 Facilities and equipment

Laboratory test facilities shall comply with the requirements given in ISO 10140-5.

The equipment used to generate the sound field shall meet the requirements given in ISO 10140-5.

Requirements for the equipment used to measure the sound level, and for calibration of that equipment,

are given in ISO 10140-5.
5 Test procedure and evaluation
5.1 General procedure

Two horizontally or vertically adjacent rooms are used, one being designated the source room and the

other the receiving room. The test element is mounted in an opening in the partition between those

rooms (see Clause 6). In the source room, a diffuse sound field is generated by a moving loudspeaker

or loudspeakers at two or more fixed positions. The average sound pressure levels are measured in

the source and receiving rooms, normally in the frequency range of 100 Hz to 5 000 Hz (optionally

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down to 50 Hz). The equivalent sound absorption area in the receiving room is calculated from

reverberation time measurements. From the sound pressure level difference between the rooms, the

quantities described in Clause 3 can be evaluated by taking into account the equivalent absorption area

and, where appropriate, the size or number of test elements. The procedures used to determine the

average sound pressure levels corrected for background noise and the reverberation time are specified

in ISO 10140-4.

People shall not be present in the source or receiving rooms during measurements to avoid affecting

the sound field.

In the case of sound insulation improvement systems, such as acoustical linings, this procedure is

repeated for the basic element and that the element with the lining under test.
5.2 Sound field in the source room

Qualification of the loudspeaker system, the number and positions of loudspeakers and the method of

operation shall be performed in accordance with ISO 10140-5.

When using a single sound source at two or more positions, these may be in the same room or the

measurements may be repeated in the opposite direction by changing source and receiving rooms with

one or more source positions in each room. The latter is not possible if the test element has one surface

which is significantly more absorbent than the other (see 6.1).

The microphone positions in the source room shall be outside the direct sound field of the source and

the radiation characteristics of the sources shall be taken into account when determining microphone

positions, as specified in ISO 10140-4.
5.3 Data processing

Calculate the sound reduction index or the element-normalized level difference (as defined in Clause 3)

from the measured (and, if necessary, corrected) energy average sound pressure levels in the rooms

and the measured reverberation time, as described in ISO 10140-4.

If sound reduction indices or element-normalized level differences are needed in octave bands, these

values shall be calculated from the three one-third octave band values in each octave band using

Equation (7) or Equation (8):
3 −R /10
 1/3oct,n 
R =−10lg  (7)
oct
 
n=1 
3 −D /10
 n,e,1/3oct,n 
D =−10lg  (8)
n,e,oct ∑
 
n=1 

Perform all calculations with the appropriate accuracy and present the final results with no higher

precision than to the nearest 0,1 dB.

The evaluation of the single-number rating from the results in one-third octave bands shall be done in

accordance with ISO 717-1.
5.4 Expression of results

For the statement of the airborne sound insulation of the test element, the measurement results, R or

D , shall be given in decibels at all measurement frequencies in one-third octave bands to one decimal

n,e
place, both in tabular form and in the form of a curve.

Graphs in the test report shall show the value in decibels plotted against frequency on a logarithmic

scale; the following dimensions shall be used:
a) 5 mm for a one-third octave band;
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b) 20 mm for 10 dB.

The use of a test report form in accordance with Annex B is preferred. Being a short version of the test

report, it shall state all information of importance regarding the test element, the test procedure and

the test results.
6 Test arrangement
6.1 General

General requirements for the preparation, curing, installation and mounting of the test element is

described in this clause. For specific types of elements and products, detailed specifications may be

given in related documents; for instance, test codes are covered in ISO 10140-1.
The test element can be of the following different types [a) to e)].

a) The test element can have dimensions that can be fitted in the available full-size test opening (e.g.

brick wall, wooden floor). In this case, it shall be in accordance with 6.2 (test element in large test

opening).

b) The test element can be of the same kind as in a), but smaller, provided it fulfils the requirement of 6.3.

c) The dimensions of the test element can be fixed and smaller than the test opening (e.g. doors,

windows, window panes and panels). In this case, it shall fulfil the requirements of 6.4.

d) The test element can be small in size and its dimensions ill-defined (e.g. transfer air devices and

outdoor air intakes). In this case, shall be in accordance with 6.5.

e) The test element of interest can be connected to a base wall/floor element, for example wall lining,

floating floor, window frame and sealing. In this case, it shall fulfil the requirements for specific

test codes for procedures and evaluation of the data in ISO 10140-1.

Sound transmission can depend on the temperature, relative humidity and static pressure in the test

rooms at the time of test and during curing or conditioning of the test element. The conditions shall be

reported.

The sound reduction index of heavyweight walls and floors depends on structural coupling to the

laboratory structure. In order to describe the effect of the mounting, it is recommended that the total

loss factor be measured and the result stated in the test report (see ISO/DIS 10140-4:2020, 4.7).

If the test element is installed in an aperture between the source room and the receiving room, the

ratio of the aperture depths on either side of the test element shall be approximately 2:1, within 20 % if

possible, unless this is inconsistent with the practical use of the test element.

If the test element has one surface which is significantly more absorbent than the other, the surface

with the higher absorption shal
...

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