SIST EN ISO 5135:2020

Acoustics - Determination of sound power levels of noise from air-terminal devices, air-terminal units, dampers and valves by measurement in a reverberation test room (ISO 5135:2020)

This document establishes general rules for the acoustic testing of air-terminal devices, air-terminal units, dampers and valves used in air diffusion and air distribution systems in order to determine sound power levels as defined in ISO 3741.

Akustik - Bestimmung des Schallleistungspegels von Geräuschen von Luftdurchlässen, Volumendurchflussreglern, Drossel- und Absperrelementen durch Messungen im Hallraum (ISO 5135:2020)

Dieses Dokument stellt allgemeine Regeln für die akustische Prüfung von Luftdurchlässen, Volumendurch¬flussreglern, Drossel  und Absperrelementen auf, die in Luftdiffusions- und Verteilungssystemen verwendet werden, um nach ISO 3741 festgelegte Schallleistungspegel zu ermitteln.

Acoustique - Détermination des niveaux de puissance acoustique du bruit émis par les bouches d'air, les unités terminales, les registres et clapets au moyen de mesurages en salle réverbérante (ISO 5135:2020)

Le présent document établit des règles générales relatives aux essais acoustiques des bouches d'air, des unités terminales, des registres et des clapets utilisés dans les systèmes de diffusion d'air et de distribution d'air afin de déterminer les niveaux de puissance acoustique définis dans l'ISO 3741.

Akustika - Ugotavljanje ravni zvočnih moči virov hrupa z meritvami v odmevnici za zračne izpuste ter dušilne in zaporne elemente za zrak (ISO 5135:2020)

General Information

• Status: Published
• Public Enquiry End Date: 04-Sep-2019
• Publication Date: 04-Oct-2020
• ICS: 17.140.20 - Noise emitted by machines and equipment
• ICS: 91.120.20 - Acoustics in building. Sound insulation
• Technical Committee: AKU - Acoustics
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 22-Sep-2020
• Due Date: 27-Nov-2020
• Completion Date: 05-Oct-2020
• Ref Project: EN ISO 5135:2020 - Acoustics - Determination of sound power levels of noise from air-terminal devices, air-terminal units, dampers and valves by measurement in a reverberation test room (ISO 5135:2020)

Relations

• Replaces: SIST EN ISO 5135:1999 - Acoustics - Determination of sound power levels of noise from air-terminal devices, air-terminal units, dampers and valves by measurement in a reverberation room (ISO 5135:1997)
• Effective Date: 01-Nov-2020

Standards Content (Sample)

SLOVENSKI STANDARD
01-november-2020
Nadomešča:
SIST EN ISO 5135:1999
Akustika - Ugotavljanje ravni zvočnih moči virov hrupa z meritvami v odmevnici za
zračne izpuste ter dušilne in zaporne elemente za zrak (ISO 5135:2020)
Acoustics - Determination of sound power levels of noise from air-terminal devices, air-
terminal units, dampers and valves by measurement in a reverberation test room (ISO
5135:2020)
Akustik - Bestimmung des Schallleistungspegels von Geräuschen von Luftdurchlässen,
Volumendurchflussreglern, Drossel- und Absperrelementen durch Messungen im
Hallraum (ISO 5135:2020)
Acoustique - Détermination des niveaux de puissance acoustique du bruit émis par les
bouches d'air, les unités terminales, les registres et clapets au moyen de mesurages en
salle réverbérante (ISO 5135:2020)
Ta slovenski standard je istoveten z: EN ISO 5135:2020
ICS:
17.140.20 Emisija hrupa naprav in Noise emitted by machines
opreme and equipment
91.120.20 Akustika v stavbah. Zvočna Acoustics in building. Sound
izolacija insulation
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO 5135
EUROPEAN STANDARD
NORME EUROPÉENNE
September 2020
EUROPÄISCHE NORM
ICS 17.140.20 Supersedes EN ISO 5135:1998
English Version
Acoustics - Determination of sound power levels of noise
from air-terminal devices, air-terminal units, dampers and
valves by measurement in a reverberation test room (ISO
5135:2020)
Acoustique - Détermination des niveaux de puissance Akustik - Bestimmung des Schallleistungspegels von
acoustique du bruit émis par les bouches d'air, les Geräuschen von Luftdurchlässen,
unités terminales, les registres et clapets au moyen de Volumendurchflussreglern, Drossel- und
mesurages en salle réverbérante (ISO 5135:2020) Absperrelementen durch Messungen im Hallraum (ISO
5135:2020)
This European Standard was approved by CEN on 7 August 2020.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by
translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2020 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 5135:2020 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
This document (EN ISO 5135:2020) has been prepared by Technical Committee ISO/TC 43 "Acoustics"
in collaboration with Technical Committee CEN/TC 211 “Acoustics” the secretariat of which is held by
DIN.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by March 2021, and conflicting national standards shall
be withdrawn at the latest by March 2021.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN ISO 5135:1998.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland,
Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of
North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the
United Kingdom.
Endorsement notice
The text of ISO 5135:2020 has been approved by CEN as EN ISO 5135:2020 without any modification.

INTERNATIONAL ISO
STANDARD 5135
Third edition
2020-08
Acoustics — Determination of sound
power levels of noise from air-
terminal devices, air-terminal units,
dampers and valves by measurement
in a reverberation test room
Acoustique — Détermination des niveaux de puissance acoustique du
bruit émis par les bouches d'air, les unités terminales, les registres et
clapets au moyen de mesurages en salle réverbérante
Reference number
ISO 5135:2020(E)
©
ISO 2020
ISO 5135:2020(E)
© ISO 2020
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting
on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address
below or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: [phone]
Email: [e-mail]
Website: www.iso.org
Published in Switzerland
ii © ISO 2020 – All rights reserved

ISO 5135:2020(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Acoustic test facilities and procedures . 2
5 Installation and operation of equipment to be tested . 3
5.1 General . 3
5.2 Test installation of air-terminal devices, air-terminal units, dampers and valves for
measurement of the sound radiated to the reverberation test room . 4
5.3 Test installation of air-terminal devices, air-terminal units, dampers and valves
for the measurement of the sound radiated to the reverberation test room by the
connecting duct . 6
5.4 Test installation of air-terminal devices, air-terminal units, dampers and valves
for the measurement of the sound radiated to the reverberation test room directly
from the equipment under test. 7
5.5 Test installation of air-terminal units for the determination of casing radiated noise . 8
5.6 Test procedures . 9
6 Auxiliary facilities for acoustic testing .10
7 Measurements and calculations .10
8 Measurement uncertainty .11
9 Test report .12
Bibliography .14
ISO 5135:2020(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.
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 ISO/TC 43, Acoustics, Subcommittee SC 1, Noise.
This third edition cancels and replaces the second edition (ISO 5135:1997), which has been technically
revised. The main changes compared to the previous edition are as follows:
1) 2)
— replacement of rescinded and unavailable reference standards (ISO 5219:1984 and ISO 5220:1981 )
with currently available and up to date standards (ANSI/ASHRAE 70 and ANSI/ASHRAE 130 or
EN 12238, EN 12239 and EN 1751);
— a reference to a companion document (ISO 7235) was added to deal with transmission elements and
physical elements used in the test setup;
— a clause on uncertainty was added.
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.
1)  Withdrawn.
2)  Withdrawn.
iv © ISO 2020 – All rights reserved

ISO 5135:2020(E)
Introduction
This document defines requirements for acoustic testing of air-terminal devices, air-terminal units,
dampers and valves used in air diffusion and air distribution systems in reverberation test rooms.
It is based on the use of ISO 3741, which describes the acoustic test facilities, instrumentation and
procedures to be used for precision grade determination of sound power levels in octave or one-third-
octave bands of a noise source.
INTERNATIONAL STANDARD ISO 5135:2020(E)
Acoustics — Determination of sound power levels of noise
from air-terminal devices, air-terminal units, dampers and
valves by measurement in a reverberation test room
1 Scope
This document establishes general rules for the acoustic testing of air-terminal devices, air-terminal
units, dampers and valves used in air diffusion and air distribution systems in order to determine
sound power levels as defined in ISO 3741.
2 Normative references
The following document
...