EN ISO 10140-2:2010

SLOVENSKI STANDARD
01-december-2010
1DGRPHãþD
SIST EN 20140-10:1997
SIST EN ISO 140-1:1998
SIST EN ISO 140-1:1998/A1:2005
SIST EN ISO 140-11:2005
SIST EN ISO 140-16:2006
SIST EN ISO 140-3:1997
SIST EN ISO 140-8:1998
$NXVWLND/DERUDWRULMVNRPHUMHQMH]YRþQHL]ROLUQRVWLJUDGEHQLKHOHPHQWRYGHO
0HUMHQMHL]ROLUQRVWLSUHG]YRNRPY]UDNX,62
Acoustics - Laboratory measurement of sound insulation of building elements - Part 2:
Measurement of airborne sound insulation (ISO 10140-2:2010)
Akustik - Messung der Schalldämmung von Gebäudeteilen im Prüfstand - Teil 2:
Messung der Luftschalldämmung (ISO 10140-2:2010)
Acoustique - Détermination de l'isolation acoustique des éléments de construction -
Partie 2: Mesurage de l'isolation des bruits aériens (ISO 10140-2:2010)
Ta slovenski standard je istoveten z: EN ISO 10140-2:2010
ICS:
17.140.01 $NXVWLþQDPHUMHQMDLQ Acoustic measurements and
EODåHQMHKUXSDQDVSORãQR noise abatement in general
91.120.20 $NXVWLNDYVWDYEDK=YRþQD Acoustics in building. Sound
L]RODFLMD insulation
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN ISO 10140-2
NORME EUROPÉENNE
EUROPÄISCHE NORM
September 2010
ICS 91.120.20 Supersedes EN 20140-10:1992, EN ISO 140-1:1997, EN
ISO 140-11:2005, EN ISO 140-16:2006, EN ISO 140-
3:1995, EN ISO 140-6:1998, EN ISO 140-8:1997
English Version
Acoustics - Laboratory measurement of sound insulation of
building elements - Part 2: Measurement of airborne sound
insulation (ISO 10140-2:2010)
Acoustique - Mesurage en laboratoire de l'isolation Akustik - Messung der Schalldämmung von Gebäudeteilen
acoustique des éléments de construction - Partie 2:
im Prüfstand - Teil 2: Messung der Luftschalldämmung
Mesurage de l'isolation au bruit aérien (ISO 10140-2:2010) (ISO 10140-2:2008)
This European Standard was approved by CEN on 14 August 2010.

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

EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2010 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 10140-2:2010: E
worldwide for CEN national Members.

Contents Page
Foreword .3

Foreword
This document (EN ISO 10140-2:2010) 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 March 2011, and conflicting national standards shall be withdrawn at
the latest by March 2011.
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 20140-10:1992, EN ISO 140-6:1998, EN ISO 140-11:2005,
EN ISO 140-8:1997, EN ISO 140-1:1997, EN ISO 140-16:2006, EN ISO 140-3:1995.
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, Romania, Slovakia, Slovenia, Spain,
Sweden, Switzerland and the United Kingdom.
Endorsement notice
The text of ISO 10140-2:2010 has been approved by CEN as a EN ISO 10140-2:2010 without any
modification.
INTERNATIONAL ISO
STANDARD 10140-2
First edition
2010-09-01
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 10140-2:2010(E)
©
ISO 2010
ISO 10140-2:2010(E)
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ii © ISO 2010 – All rights reserved

ISO 10140-2:2010(E)
Contents Page
Foreword .iv
Introduction.v
1 Scope.1
2 Normative references.1
3 Terms and definitions .2
4 Facilities and equipment.3
5 Test procedure and evaluation .3
6 Test arrangement .5
7 Limits of performance.7
8 Precision.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.13

ISO 10140-2:2010(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies
(ISO member bodies). The work of preparing International Standards is normally carried out through ISO
technical committees. Each member body interested in a subject for which a technical committee has been
established has the right to be represented on that committee. International organizations, governmental and
non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the
International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International Standards
adopted by the technical committees are circulated to the member bodies for voting. Publication as an
International Standard requires approval by at least 75 % of the member bodies casting a vote.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. ISO shall not be held responsible for identifying any or all such patent rights.
ISO 10140-2 was prepared by Technical Committee ISO/TC 43, Acoustics, Subcommittee SC 2, Building
acoustics.
This first edition of ISO 10140-2, together with ISO 10140-1, ISO 10140-3, ISO 10140-4 and ISO 10140-5,
cancels and replaces ISO 140-1:1997, ISO 140-3:1995, ISO 140-6:1998, ISO 140-8:1997, ISO 140-10:1991,
ISO 140-11:2005 and ISO 140-16:2006, which have been technically revised.
It also incorporates the Amendments ISO 140-1:1997/Amd.1:2004 and ISO 140-3:1995/Amd.1:2004.
ISO 10140 consists of the following parts, under the general title Acoustics — Laboratory measurement of
sound insulation of building elements:
⎯ Part 1: Application rules for specific products
⎯ Part 2: Measurement of airborne sound insulation
⎯ Part 3: Measurement of impact sound insulation
⎯ Part 4: Measurement procedures and requirements
⎯ Part 5: Requirements for test facilities and equipment

iv © ISO 2010 – All rights reserved

ISO 10140-2:2010(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 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. It is also intended to incorporate
ISO 140-18 into ISO 10140 (all parts).
ISO 10140-2:2010(E)
Table 1 — Structure and contents of ISO 10140 (all parts)
Relevant part Main purpose, contents and use Detailed content
of ISO 10140
It indicates the appropriate test procedure for
ISO 10140-1 Appropriate references to ISO 10140-2 and
elements and products. For certain types of
ISO 10140-3 and product-related, specific and
element/product, it can contain additional and
additional instructions on:
more specific instructions about quantities and
⎯ specific quantities measured;
test element size and about preparation,
⎯ size of test element;
mounting and operating conditions. Where no
⎯ boundary and mounting conditions;
specific details are included, the general
⎯ conditioning, testing and operating conditions;
guidelines are according to ISO 10140-2 and
⎯ additional specifics for test report.
ISO 10140-3.
It gives a complete procedure for airborne sound
ISO 10140-2
⎯ Definitions of main quantities measured
insulation measurements according to
⎯ General mounting and boundary conditions
ISO 10140-4 and ISO 10140-5. For products
⎯ General measurement procedure
without specific application rules, it is sufficiently
⎯ Data processing
complete and general for the execution of
⎯ Test report (general points)
measurements. However, for products with
specific application rules, measurements are
carried out according to ISO 10140-1, if available.
It gives a complete procedure for impact sound
ISO 10140-3 ⎯ Definitions of main quantities measured
insulation measurements according to
⎯ General mounting and boundary conditions
ISO 10140-4 and ISO 10140-5. For products
⎯ General measurement procedure
without specific application rules, it is sufficiently
⎯ Data processing
complete and general for the execution of
⎯ Test report (general points)
measurements. However, for products with
specific application rules, measurements are
carried out according to ISO 10140-1, if available.
ISO 10140-4 It gives all the basic measurement techniques ⎯ Definitions
and processes for measurement according to
⎯ Frequency range
ISO 10140-2 and ISO 10140-3 or facility
⎯ Microphone positions
qualifications according to ISO 10140-5. Much of
⎯ SPL measurements
the content is implemented in software.
⎯ 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, its ⎯ volumes, dimensions;
additional accessories and measurement ⎯ flanking transmission;
equipment (hardware). ⎯ 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 2010 – All rights reserved

INTERNATIONAL STANDARD ISO 10140-2:2010(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 referenced documents are indispensable for the application 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 140-2, Acoustics — Measurement of sound insulation in buildings and of building elements — Part 2:
Determination, verification and application of precision data
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 10140-2:2010(E)
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
sound reduction index
R
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
W
R = 10 lg (1)
W
NOTE 1 R is expressed in decibels.
For laboratory measurements using sound pressure, the sound reduction index is calculated using:
S
RL=−L+10lg (2)
A
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 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 The expression “sound transmission loss” (TL) is also in use in English-speaking countries. It is equivalent to
“sound reduction index”.
NOTE 4 Related quantities can be introduced in other documents or test codes, often by adding subscripts, i.e. R for
I
the sound reduction index as measured by intensity methods, R as the sound reduction index per unit length of slits or ∆R
s
as the improvement in sound reduction index by linings or suspended ceilings.
3.2
apparent sound reduction index
R'
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
⎛⎞W
R′ = 10 lg (3)
⎜⎟
WW+
⎝⎠23
NOTE 1 R' is expressed in decibels.
NOTE 2 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).
S
R'=−L L+10 lg (4)
A
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.
2 © ISO 2010 – All rights reserved

ISO 10140-2:2010(E)
3.3
element-normalized level difference
D
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)
A
⎛⎞
DL=−L+10 lg (5)
n,e 1 2 ⎜⎟
A
⎝⎠
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 D is expressed in decibels.
n,e
NOTE 2 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).
nA
⎛⎞
DL=−L+10 lg (6)
n,e 1 2 ⎜⎟
A
⎝⎠
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
ISO 10140-2:2010(E)
rooms, normally in the frequency range of 100 Hz to 5 000 Hz (optionally down to 50 Hz). The equivalent
sound absorption area in the receiving room is calculated from reverberation time measureme
...