SIST EN ISO 10140-2:2021

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.

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oSIST prEN ISO 10140-2:2020

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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
THIS DOCUMENT IS A DRAFT CIRCULATED
This document is circulated as received from the committee secretariat.
FOR COMMENT AND APPROVAL. IT IS
THEREFORE SUBJECT TO CHANGE AND MAY
NOT BE REFERRED TO AS AN INTERNATIONAL
STANDARD UNTIL PUBLISHED AS SUCH.
IN ADDITION TO THEIR EVALUATION AS
ISO/CEN PARALLEL PROCESSING
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 10140-2:2020(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 2020

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

COPYRIGHT PROTECTED DOCUMENT
© ISO 2020
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
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oSIST prEN ISO 10140-2:2020
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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
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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.
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
R
ten times the common logarithm of the ratio of the sound power, W , that is incident on the test element
1
to the sound power, W , radiated by the test element to the other side
2
W
1
R=10lg (1)
W
2
Note 1 to entry: R is expressed in decibels.
For laboratory measurements using sound pressure, the sound reduction index is calculated using:
S
RL=−L +10lg (2)
12
A
where
L is the energy average sound pressure level in the source room, in decibels;
1
L is the energy average sound pressure level in the receiving room, in decibels;
2
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
R'
ten times the common logarithm of the ratio of the sound power, W , that is incident on a test element to
1
the total sound power radiated into the receiving room if, in addition to the sound power, W , radiated
2
by the test element, the sound power, W , radiated by flanking elements or by other components is
3
significant
W
 
1
′
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).
S
R'=−LL +10 lg (4)
12
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.
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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
 
0
DL=−L +10 lg (5)
 
n,e 12
A
 
where
L is the energy average sound pressure level in the source room, in decibels;
1
L is the energy average sound pressure level in the receiving room, in decibels;
2
2
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).
nA
 
0
DL=−L +10 lg (6)
 
n,e 12
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
2
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 
10
R =−10lg  (7)
∑
oct
 
3
n=1 
3 −D /10
 n,e,1/3oct,n 
10
D =−10lg  (8)
n,e,oct ∑
 
3
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
...