SIST EN 20140-10:1997

SLOVENSKI STANDARD
SIST EN 20140-10:1997
01-april-1997
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Acoustics - Measurement of sound insulation in buildings and of building elements - Part
10: Laboratory measurement of airborne sound insulation of small building elements
(ISO 140-10:1991)
Akustik - Messung der Schalldämmung in Gebäuden und von Bauteilen - Teil 10:
Messung der Luftschalldämmung kleiner Bauteile in Prüfständen (ISO 140-10:1991)
Acoustique - Mesurage de l'isolation acoustique des immeubles et des éléments de
construction - Partie 10: Mesurage en laboratoire de l'isolation au bruit aérien de petits
éléments de construction (ISO 140-10:1991)
Ta slovenski standard je istoveten z: EN 20140-10:1992
ICS:
17.140.01 $NXVWLþQDPHUMHQMDLQ Acoustic measurements and
EODåHQMHKUXSDQDVSORãQR noise abatement in general
91.060.01 Stavbni elementi na splošno Elements of buildings in
general
91.120.20 $NXVWLNDYVWDYEDK=YRþQD Acoustics in building. Sound
L]RODFLMD insulation
SIST EN 20140-10:1997 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 20140-10:1997

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SIST EN 20140-10:1997

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SIST EN 20140-10:1997

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SIST EN 20140-10:1997
INTERNATIONAL
STANDARD
First edi tion
1991-12-15
Acoustics - Measurement of Sound insulation in
buildings and of building elements -
Part 10:
Laboratory measurement of airborne Sound
insulation of small building elements
Acoustique - Mesurage de I’isolation acoustique des immeubles et des
&ments de construction -
Partie IO: Mesurage en laboratoire de /‘isolation au bruit ah-ien de petits
elements de construction
Reference number
ISO 140”10:1991(E)

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SIST EN 20140-10:1997
ISO 140910:1991(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. Esch 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, govern-
mental and non-governmental, in liaison with ISO, also take patt in the
work. ISO collaborates closely with the International Electrotechnical
Commission (IEC) on all matters of electrotechnical standardization.
Draft International Standards adopted by the technical committees are
circulated to the member bodies for voting. Publication as an Inter-
national Standard requires approval by at least 75 % of the member
bodies casting a vote.
International Standard ISO 140-10 was prepared by Technical Committee
ISO/TC 43, Acoustics, Sub-Committee SC 2, Building acousfics.
ISO 140 consists of the following Parts, under the general title
Measurement of Sound insulation in buildings and of build-
Acoustics -
ing elements:
-
Part 1: Requirements for laboratories
-
Part 2: Determination, verifkation and application of precision data
-
Part 3: Laborstory measurements of airborne Sound insulation of
building elemen ts
- Part 4: Fjeld measurements of airborne Sound insulation between
rooms
-
airborne insulation of facade
Part 5: Field measurements of Sound
elements and facades
-
Part 6: Laborstory measurements of impact Sound insulation of
f7oors
-
Part 7: Field measurements of impact Sound insulation of f7oors
-
Part 8: Laborstory measurements of the reduction of transmitted
impact noise by floor coverings on a Standard #oor
0 ISO 1991
All rlghts reserved. No part of this publication may be reproduced or utiiized in any form
or by any means, electronie or mechanical, including photocopying and microfilm, without
permlssion in writing from the publisher.
International Organization for Standardization
Case Postale 56 l CH-1211 Geneve 20 l Switzerland
Printed in Switzerland
ii

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SIST EN 20140-10:1997
ISO 140010:1991(E)
- Part 9: La bora measuremenf of room-to-room airborne
Sound
t0f-Y
ended ceiling
insulation ofa susp with a Plenum above it
- Part I surement of airborne Sound
0: Laborstory mea insula tion of
small building elements
Annexes A, B and C form an integral part of this part of ISO 140.
. . .
Ill

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SIST EN 20140-10:1997
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SIST EN 20140-10:1997
--
ISO 1409IO:1991 (E)
INTERNATIONAL STANDARD
- Measurement of Sound insulation in buildings
Acoustics
and of building elements -
Part 10:
Laboratory measurement of airborne Sound insulation of small
building elements
for which the associated Sound transmission might
1 Scope
depend on an interplay of components.
This part of ISO 140 gives a laboratory method of
measuring airborne Sound insulation under diffuse
field conditions of such small building elements as 2 Normative references
are defined below.
The following Standards contain provisions which,
lt is intended that the results obtained will be used
through reference in this text, constitute provisions
to develop building elements with appropriate
of this part of ISO 440. At the time of publication, the
acoustical properties, to classify such elements ac-
editions indicated were valid. All Standards are
cording to their Sound insulation properties and to
subject to revision, and Parties to agreements based
estimate their influence on the Sound insulation of
on this part of ISO 140 are encouraged to investigate
partition constructions in buildings.
the possibility of applying the most recent editions
of the Standards indicated below. Members of IEC
This part of ISO 140 applies to building elements,
and ISO maintain registers of currently valid Inter-
excluding windows and doors, with an area of less
national Standards.
than 1 m* and which occur in a certain number of
discrete sizes with weil-defined lateral dimensions
ISO 140-1:1990, Acoustics - Measurement of Sound
and which transmit Sound between two adjacent
insulation in buildings and of building elements -
rooms or between one room and the open air inde-
Part 1: Requirements for laboratories.
pendently of the adjoining building elements.
ISO 140-3:1978, Acoustics - Measurement of Sound
Some examples of equipment covered by this part
insulation in buildings and of building elements -
of ISO 140 are
Part 3: Laboratory measuremenfs of airborne Sound
insulation of building elements.
transfer air devices
ISO 717-1:1982, Acoustics - Rating of Sound insu-
airing Panels (Ventilators)
lation in buildings and of building elements -
Part 1: Airborne Sound insulation in buildinqs and
h
outdoor air intakes
of interior building elements.
electrical raceways (cable ducts)
ISO 717-3:1982, Acoustics - Rating of Sound insu-
lation in buildings and of building elements -
transit sealing Systems
Part 3: Airborne Sound insulafion of facade elements
and facades.
The method given is not primarily intended for
components that constitute part of an integrated unit

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SIST EN 20140-10:1997
ISO 140010:199l(E)
lt is convenient to express this Sound insulation in
3 Definition
terms of the element-normalized level differente
according to equation (1). The flanking transmission
For the purposes of this part of ISO 140, the following
expressed as an equivalent D,, is denoted by
definition applies.
D
n,e,F*
3.1 element-normaiized Ievel differente: For t he
If the measured value of the element-normalized
purposes of this test method, the element-
level differente for a test Object is less than
normalized level differente is given by equation (1).
D neF - 10 dB, the indirectly transmitted Sound is
lt is denoted by D, e and is expressed in decibels.
I
co&dered negligible. If the measured value is
. . . larger than or equal to D, e F - IO dB, the measured
D n,e = L, - 4 + IO Ig (A&4) dB
(1)
value shall be corrected u’s’ing the procedure speci-
where
fied in annex A.
is the average Sound pressure level in the
L NOTE 1 Difficulties with an unsatisfactorily low margin
1
between the flanking transmission and the transmission
Source room, in decibels;
via the test Object tan be avoided by increasing the
Sound press ure level in the of test objects inserted in the partition (see
is th e average number
L2
6.3.3).
, in decibels;
rece iving room
A, is the reference area, in Square metres (for
6 Installation and Operation of test objects
the laboratory, A, = 10);
n is the e quivalent absorption area in the re-
6.1 General
ceivin room, in Square met res.
g
As the Sound insulation of small building elements
4 Equipment
depends on their dimensions, reliable values tan be
obtained only by testing every actual size.
The measurement equipment shall comply with the
requirements given for equipment in ISO 140-3.
6.2 Mounting of test objectifs
5 Laboratory requirements
Ensure that the test Object is installed in a manner
representative of field practice with a careful simu-
lation of normal connections and sealing conditions
5.1 Rooms
at the perimeter and at joints within the unit.
Laboratory test facilities shall comply with the re-
If the test Object is intended to be openable, install
quirements given for laboratory test facilities in
it for test so that it tan be opened and closed in the
ISO 140-1.
normal manner. Open and close it at least ten times
immediately befor’testing.
5.2 Partitions
In Order to achieve a realistic wall thickness around
The test Object is much smaller than the available the element, it might be practical or necessary ei-.
ther to increase or decrease the thickness of the
test opening. A partition of suffrciently high Sound
partition wall in the area around the element. Rules
insulation shall be built in the test opening; the ob-
for increasing or decreasing the thickness Iocally
ject shall be placed in this partition. The Sound
transmitted through this partition and any other in- are given in annex B.
direct path shall be either:
6.3 Location of test objects
a) negligible compared with the Sound transmitted
through the test Object,
6.3.1 Mounting positions
or, if this condition cannot be filled,
When a small building unit is mounted near one or
more reflecting planes, the Sound transmission may
s shall be corrected for the
b) the meas ured value
differ appreciably from that obtained when the unit
transm ission.
influence of fla nking
is mounted through a partition but away from any
The flanking transmission shall be determined by adjoining room surface. Therefore,
mount the
measuring the apparent Sound insulation of the equipment to be tested through the partition in pos-,
partition wall inserted in the
...