Acoustics - Materials for acoustical applications - Determination of airflow resistance (ISO 9053:1991)

The standard specifies two methods for the determination of the airflow resistance of porous materials for acoustical applications

Akustik - Materialien für akustische Anwendungen - Bestimmung des Strömungswiderstandes (ISO 9053:1991)

Acoustique - Matériaux pour applications acoustiques - Détermination de la résistance à l'écoulement de l'air (ISO 9053:1991)

La présente Norme internationale prescrit deux méthodes de détermination de la résistance à l'écoulement de l'air des matériaux poreux utilisés pour applications acoustiques. Elle s'applique à des éprouvettes découpées dans des matériaux poreux.
NOTE 1 Les publications qui traitent du comportement des matériaux à l'écoulement tant en régime laminaire que turbulent sont indiquées dans l'annexe A.

Akustika - Gradiva za uporabo v akustiki – Določevanje pretočnega upora zraka (ISO 9053:1991)

General Information

Status
Withdrawn
Publication Date
30-Mar-1993
Withdrawal Date
11-Dec-2018
Current Stage
9960 - Withdrawal effective - Withdrawal
Completion Date
12-Dec-2018

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Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN 29053:1999
01-november-1999
$NXVWLND*UDGLYD]DXSRUDERYDNXVWLNL±'RORþHYDQMHSUHWRþQHJDXSRUD]UDND
,62
Acoustics - Materials for acoustical applications - Determination of airflow resistance
(ISO 9053:1991)
Akustik - Materialien für akustische Anwendungen - Bestimmung des
Strömungswiderstandes (ISO 9053:1991)
Acoustique - Matériaux pour applications acoustiques - Détermination de la résistance a
l'écoulement de l'air (ISO 9053:1991)
Ta slovenski standard je istoveten z: EN 29053:1993
ICS:
17.140.01 $NXVWLþQDPHUMHQMDLQ Acoustic measurements and
EODåHQMHKUXSDQDVSORãQR noise abatement in general
91.100.60 0DWHULDOL]DWRSORWQRLQ Thermal and sound insulating
]YRþQRL]RODFLMR materials
SIST EN 29053:1999 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 29053:1999

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SIST EN 29053:1999

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SIST EN 29053:1999

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SIST EN 29053:1999
IS0
INTERNATIONAL
STANDARD 9053
First edition
1991-07-01
Acoustics - Materials for acoustical
applications - Determination of airflow
resistance
Acoustique - Ma t&iaux pour applications acoustiques - D6termina tion
de la r&istance 2 I’koulement de /‘air
Reference number
IS0 9053: 199 1 (E)

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SIST EN 29053:1999
IS0 9053:1991 (E)
Foreword
IS0 (the International Organization for Standardization) is a worldwide
federation of national standards bodies (IS0 member bodies). The work
of preparing International Standards is normally carried out through IS0
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, govern-
mental and non-governmental, in liaison with ISO, also take part in the
work. IS0 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 lnter-
national Standard requires approval by at least 75 % of the member
bodies casting a vote.
International Standard IS0 9053 was prepared by Technical Committee
ISO/TC 43, Acoustics.
Annex A of this International Standard is for information only.
0 is0 1991
All rights reserved. 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.
lnternationa I Organization for Standard ization
Case Postal e 56 l CH-121 1 Geneve 20 l Switzerland
Printed in Switzerland
ii

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SIST EN 29053:1999
IS0 9053:1991(E)
Introduction
The airflow resistance of porous materials indicates, in an indirect
manner, some of their structural properties. It may be used to establish
correlations between the structure of these materials and some of their
acoustical properties (for example, absorption, attenuation, etc.).
This International Standard is, therefore, useful for two purposes:
a) in relating some of the acoustical proper-ties of porous materials to
their struct ure an d their method of manufactu re;
b) in ensuring product quality (quality control).
. . .
III

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SIST EN 29053:1999
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SIST EN 29053:1999
__-~~~ -~-
IS0 9053:1991 (E)
INTERNATIONAL STANDARD
- Materials for acoustical applications -
Acoustics
Determination of airflow resistance
is the airflow resistance, in Pascal sec-
1 Scope
onds per cubic metre, of the test speci-
men;
This International Standard specifies two methods
for the determination of the airflow resistance of
A is the cross-sectional area, in square
porous materials for acoustical applications.
metres, of the test specimen perpen-
dicular to the direction of flow.
It is applicable to test specimens cut from products
of porous materials.
It is expressed in Pascal seconds per metre.
NOTE 1 Details of publications relating to flow behav-
2.3 airflow resistivity, Y: If the material is con-
iour under both iaminar and turbulent conditions are given
sidered as being homogeneous, that quantity de-
in annex A.
fined by
R
y=-S
2 Definitions
d
For the purposes of this International Standard, the
where
following definitions apply.
R is the specific airflow resistance, in
S
2.1 airflow resistance, R: A quantity defined by Pascal seconds per metre, of the test
specimen;
AP
/
R=T- d i
...

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