SIST EN 20354:1998/A1:1998

SLOVENSKI STANDARD
SIST EN 20354:1998/A1:1998
01-avgust-1998
Akustika - Merjenje absorpcije zvoka v odmevnici - 1. dopolnilo - Pritrditve
preskušancev za merjenje absorpcije zvoka (ISO 354:1985/AMD1:1997)
Acoustics - Measurement of sound absorption in a reverberation room - Amendment 1:
Test specimen mountings for sound absorption tests (ISO 354:1985/AMD1:1997)
Akustik - Messung der Schallabsorption im Hallraum - Änderung 1: Montagearten von
Prüfgegenständen für Schallabsorptionsmessungen (ISO 354:1985/AMD1:1997)
Acoustique - Mesurage de l'absorption acoustique en salle réverbérante - Amendement
1: Montage des échantillons pour les essais d'absorption acoustique (ISO
354:1985/AMD1:1997)
Ta slovenski standard je istoveten z: EN ISO 354:1993/A1:1997
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 20354:1998/A1:1998 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 20354:1998/A1:1998

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SIST EN 20354:1998/A1:1998

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SIST EN 20354:1998/A1:1998

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SIST EN 20354:1998/A1:1998
INTERNATIONAL IS0
STANDARD 354
First edition
1985-02-01
AMENDMENT 1
1997-06-o 1
Acoustics - Measurement of sound
absorption in a reverberation room
AMENDMENT 1: Test specimen mountings for
sound absorption tests
Mesurage de I’absorption acoustique en sale
Acoustique -
r&erb&ante -
AMENDEMENT I: Montage des kchantillons pour les essais d ’absorption
acoustique
Reference number
IS0 354: 1985lAmd. 1:1997(E)

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SIST EN 20354:1998/A1:1998
IS0 354: 1985/Amd. 1: 1997(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, governmental 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 International
Standard requires approval by at least 75 % of the member bodies casting
a vote.
Amendment 1 to IS0 354:1985 was prepared by Technical Committee
ISOTTC 43, Acoustics, Subcommittee SC 2, Building acoustics.
Annex D will form an integral part of IS0 354.
0 IS0 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 l CH-1211 Geneve 20 l Switzerland
Internet central @ iso.ch
x.400 c=ch; a=400net; p=iso; o=isocs; s=central
Printed in Switzerland
ii

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SIST EN 20354:1998/A1:1998
IS0 354:1985/Amd.l :1997(E)
Acoustics - Measurement of sound absorption in a reverberation
room
AMENDMENT 1: Test specimen mountings for sound absorption tests
Page 10
Add the following annex.
Annex D
(normative)
Test specimen mountings for sound absorption tests
D.l General
The sound absorption properties of a material depend on how that material is mounted during a test. This annex
specifies several different standard mountings for sound absorption tests. Normally a test specimen is tested using
only one of the specified mountings.
Designations for type E and type G mountings include a numerical suffix, for example E-200 or G-100. The suffix is
equal to a distance characteristic of the mounting, in millimetres, rounded off to the nearest 5 mm.
NOTE - Where applicable, the designations used for each type of mounting have been chosen to match those used in a
standard that already existed when this annex was written: ASTM E 795, Standard Practices for Mounting lest Specimens
During Sound Absorption Tests.
D.2 Type A mounting
The test specimen shall be mounted or placed directly against a room surface, such as the floor of the reverberation
room. Measure plane elements (e.g. partition walls) lying on the floor. If an adhesive or mechanical fastening
system is required to mount the test specimen, it shall
...