Acoustics - Measurement of sound insulation in buildings and of building elements - Part 1: Requirements for laboratory test facilities with suppressed flanking transmission (ISO 140-1:1997)

Migrated from Progress Sheet (TC Comment) (2000-07-10): EN ISO 140-1 and -3 to -8 are a package and have as DOW 1997-06-30 (BTS1 17/94) ++ DOW for EN ISO 140-1, -3 to -8 will be 1998-12-31 (2nd ext. - BTS1 C 16/1997)

Akustik - Messung der Schalldämmung in Gebäuden und von Bauteilen - Teil 1: Anforderungen an Prüfstände mit unterdrückter Flankenübertragung (ISO 140-1:1997)

Dieser Teil von ISO 140 beinhaltet Anforderungen an Prüfstände zur Messung der Schalldämmung von Bauteilen. Er gilt für Prüfstände, bei denen die Schallabstrahlung von flankierenden Bauteilen unterdrückt ist und/oder bauliche Trennung zwischen Empfangs- und Senderaum besteht.

Acoustique - Mesurage de l'isolement acoustique des immeubles et des éléments de construction - Partie 1: Spécifications relatives aux laboratoires sans transmissions latérales (ISO 140-1:1997)

Akustika - Merjenje zvočne izolirnosti v zgradbah in zvočne izolirnosti gradbenih elementov - 1. del - Zahteve za laboratorije z majhnim bočnim prenosom (ISO 140-1:1997)

General Information

Status
Withdrawn
Publication Date
31-Jul-1998
Withdrawal Date
25-Oct-2010
Technical Committee
Current Stage
9900 - Withdrawal (Adopted Project)
Start Date
25-Oct-2010
Due Date
17-Nov-2010
Completion Date
26-Oct-2010

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SLOVENSKI STANDARD
SIST EN ISO 140-1:1998
01-avgust-1998

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Acoustics - Measurement of sound insulation in buildings and of building elements - Part

1: Requirements for laboratory test facilities with suppressed flanking transmission (ISO

140-1:1997)
Akustik - Messung der Schalldämmung in Gebäuden und von Bauteilen - Teil 1:

Anforderungen an Prüfstände mit unterdrückter Flankenübertragung (ISO 140-1:1997)

Acoustique - Mesurage de l'isolement acoustique des immeubles et des éléments de

construction - Partie 1: Spécifications relatives aux laboratoires sans transmissions

latérales (ISO 140-1:1997)
Ta slovenski standard je istoveten z: EN ISO 140-1:1997
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
SIST EN ISO 140-1:1998 en

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

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SIST EN ISO 140-1:1998
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SIST EN ISO 140-1:1998
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SIST EN ISO 140-1:1998
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SIST EN ISO 140-1:1998
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SIST EN ISO 140-1:1998
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SIST EN ISO 140-1:1998
INTERNATIONAL ISO
STANDARD 140-1
Third edition
1997-10-15
Acoustics — Measurement of sound
insulation in buildings and of building
elements —
Part 1:
Requirements for laboratory test facilities with
suppressed flanking transmission
Acoustique — Mesurage de l'isolement acoustique des immeubles et des
éléments de construction —
Partie 1: Spécifications relatives aux laboratoires sans transmissions
latérales
A Reference number
ISO 140-1:1997(E)
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SIST EN ISO 140-1:1998
ISO 140-1:1997(E)
Contents

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

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

3 Laboratory test facilities for airborne sound insulation measurements under diffuse field conditions......1

3.1 Rooms..................................................................................................................................................................1

3.2 Test opening........................................................................................................................................................2

3.2.1 Walls and floors ...............................................................................................................................................2

3.2.2 Doors and similar components ......................................................................................................................3

3.2.3 Windows and glazings ....................................................................................................................................3

4 Laboratory test facilities for impact sound insulation measurements of floors and floor coverings ..........4

4.1 Receiving room...................................................................................................................................................4

4.2 Test opening........................................................................................................................................................4

Annexes

A Estimation of the maximum achievable sound reduction index......................................................................5

B Measurement of the sound reduction index of the filler wall (and any flanking construction) for test

openings for windows and glazings.........................................................................................................................8

C Test opening for the measurement of the sound insulation of glazing ........................................................10

© ISO 1997

All rights reserved. Unless otherwise specified, no part of this publication may be reproduced

or utilized in any form or by any means, electronic or mechanical, including photocopying and

microfilm, without permission in writing from the publisher.
International Organization for Standardization
Case postale 56 • CH-1211 Genève 20 • Switzerland
Internet central@iso.ch
X.400 c=ch; a=400net; p=iso; o=isocs; s=central
Printed in Switzerland
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SIST EN ISO 140-1:1998
© ISO
ISO 140-1:1997(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.

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.

International Standard ISO 140-1 was prepared by Technical Committee ISO/TC 43, Acoustics, Subcommittee

SC 2, Building acoustics.

This third edition cancels and replaces the second edition (ISO 140-1:1990), which has been technically revised.

ISO 140 consists of the following parts, under the general title Acoustics — Measurement of sound insulation in

buildings and of building elements:

— Part 1: Requirements of laboratory test facilities with suppressed flanking transmission

— Part 2: Determination, verification and application of precision data

— Part 3: Laboratory measurements of airborne sound insulation of building elements

— Part 4: Field measurements of airborne sound insulation between rooms

— Part 5: Field measurements of airborne sound insulation of facade elements and facades

— Part 6: Laboratory measurements of impact sound insulation of floors
— Part 7: Field measurements of impact sound insulation of floors

— Part 8: Laboratory measurements of the reduction of transmitted impact noise by floor coverings on a

heavyweight standard floor

— Part 9: Laboratory measurement of room-to-room airborne sound insulation of a suspended ceiling with a

plenum above it

— Part 10: Laboratory measurement of airborne sound insulation of small building elements

— Part 12: Laboratory measurement of room-to-room airborne and impact sound insulation of an access floor

Annexes A and B form an integral part of this part of ISO 140. Annex C is for information only.

iii
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SIST EN ISO 140-1:1998
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SIST EN ISO 140-1:1998
INTERNATIONAL STANDARD © ISO ISO 140-1:1997(E)
Acoustics — Measurement of sound insulation in buildings and of
building elements —
Part 1:
Requirements for laboratory test facilities with suppressed flanking
transmission
1 Scope

This part of ISO 140 lays down specifications concerning laboratory test facilities for sound insulation

measurements of building elements. It applies to laboratory test facilities with suppressed radiation from flanking

elements; and/ or structural isolation between source and receiving rooms.
2 Normative references

The following standards contain provisions which, through reference in this text, constitute provisions of this part of

ISO 140. At the time of publication, the editions indicated were valid. All standards are subject to revision, and

parties to agreements based on this part of ISO 140 are encouraged to investigate the possibility of applying the

most recent editions of the standards indicated below. Members of IEC and ISO maintain registers of currently valid

International Standards.

ISO 140-3:1995, Acoustics — Measurement of sound insulation in buildings and of building elements — Part 3:

Laboratory measurements of airborne sound insulation of building elements.

ISO 140-8:1997, Acoustics — Measurement of sound insulation in buildings and of building elements — Part 8:

Laboratory measurements of the reduction of transmitted impact noise by floor coverings on a heavyweight

standard floor.

3 Laboratory test facilities for airborne sound insulation measurements under diffuse

field conditions

The laboratory test facility consists of two adjacent reverberant rooms with a test opening between them in which

the test specimen is inserted.
3.1 Rooms

Volumes and corresponding dimensions of the two test rooms should not be exactly the same. A difference in room

volumes and/or in the linear dimensions of at least 10 % is recommended. The volumes of the test rooms shall be at

least 50 m .

Choose the ratios of the room dimensions such that the modal frequencies in the low-frequency bands are spaced

as uniformly as possible.
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SIST EN ISO 140-1:1998
© ISO
ISO 140-1:1997(E)

NOTE — Theoretical calculation as well as experiments have indicated that it is probably advisable, when measuring walls or

floors, that the specimen should cover a total partition wall or ceiling of the test room, i.e. the test opening should extend from

3 3

wall to wall and/or from ceiling to floor. In such a case, a volume of 50 m to 60 m is appropriate in view of the recommended

size of the test opening.

Large variations of the sound pressure level in the room indicate the presence of dominating strong standing waves.

In this case it is necessary to install diffusing elements in the rooms. Evaluate by experiments the positions and the

necessary number of elements with the goal that the sound reduction index is not influenced when further diffusing

elements are installed.

The reverberation time in the rooms under normal test conditions (with negligible absorption by the test object)

should not be excessively long or short. Where the reverberation time at low frequencies exceeds 2 s, or is less

than 1 s, check whether the measured sound reduction index depends on the reverberation time. When such a

dependence is found, even with diffusers in the rooms, the room shall be modified to adjust the reverberation time,

T, in seconds, at low test frequencies such that
23/
12 s s≤≤TV/50
where V is the value of the room volume, in cubic metres.

The background noise level in the receiving room shall be sufficiently low to permit measurements of the sound

transmitted from the source room, considering the power output in the source room and the sound insulation of the

specimens for which the laboratory is intended.

In laboratory test facilities for measuring the sound reduction index, the sound transmitted by any indirect path

should be negligible compared with the sound transmitted through the test specimen. One way to achieve this in

such facilities is to provide sufficient structural isolation between source and receiving room. Another method might

be to cover all surfaces of both rooms with linings that reduce the flanking transmission sufficiently.

Methods for the estimation of the maximum achievable sound reduction index R' , which is determined by indirect

max
paths are given in annex A.

The measured sound reduction index of a specimen is affected by the internal loss factor of the structures

surrounding the specimen. The mass ratio of the tested structure to the surrounding ones are to be taken into

account. For tests on lightweight structures ( < 150 kg/m ) there are no special related requirements to be taken

into account. For heavier structures under test it should be ensured that the power dissipation of the surrounding

structures is such that the loss factor of the test specimen is not less than
h =+001 03
,,/f
min
where f is the value of test frequency, in hertz.

To check this requirement, use a brick or block wall having a mass of (400 ± 40) kg/m plastered on one side as the

test object. For measurement of the loss factor see ISO 140-3:1995, annex E.
3.2 Test opening
3.2.1 Walls and floors
2 2 2

The area of the test opening should be approximately 10 m for walls, and between 10 m and 20 m for floors, with

the length of the shorter edge not less than 2,3 m for both walls and floors.

A test opening with a smaller area may be used, if the wavelength of free flexural waves at the lowest frequency

considered is smaller than half the minimum dimensions of the specimen. The smaller the specimen, however, the

more sensitive the results will be to edge constraint conditions and to local variations in sound fields. The sound

insulation of the specimen itself is also dependent on the size. If appropriate, it is recommended to use the test

opening for glazings described in annex C.
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SIST EN ISO 140-1:1998
© ISO
ISO 140-1:1997(E)
3.2.2 Doors and similar components

For tests of doors and similar components, a test opening with an area of less than 10 m may be appropriate. The

test opening for doors shall be so arranged that the lower edge is situated near to the level of the floor of the test

rooms such that conditions in the building are reproduced.
3.2.3 Windows and glazings

A test opening with an area of less than 10 m may also be appropriate for tests on glazing samples or window

assemblies. These shall be inserted into a filler wall built into the test aperture between the two rooms.

The filler wall shall comply with the following requirements:

a) its sound insulation at any test frequency shall be such that the sound energy transmitted through the wall is at

least 6 dB, but preferably more than 15 dB lower than that transmitted by the test specimen (a method for

testing the sound insulation of the filler wall including any flanking transmission is given in annex B);

b) the total
...

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