Industrial-process control valves - Part 8-1: Noise considerations - Laboratory measurement of noise generated by aerodynamic flow through control valves

Defines equipment, methods, and procedures for obtaining laboratory measurements of sound pressure levels radiated by control valves and/or associated piping configurations, including fixed restrictions, through which compressible fluids are passing. Control valves discharging to atmosphere are excluded from this standard

Stellventile für die Prozessregelung - Teil 8-1: Geräuschbetrachtungen - Laboratoriumsmessungen von Geräuschen bei gasdurchströmten Stellventilen

Vannes de régulation des processus industriels - Partie 8-1: Considérations sur le bruit - Mesure en laboratoire du bruit créé par un débit aérodynamique à travers une vanne de régulation

Définit le matériel, les méthodes et les procédures pour obtenir des mesures en laboratoire des niveaux de pression acoustique aérienne rayonnée par les vannes de régulation et/ou les configurations de tuyauteries associées, y compris les restrictions fixes, à travers lesquelles passent des fluides compressibles. Les vannes de régulation déchargeant à l'atmosphère sont exclues de cette norme.

Regulacijski ventili za industrijske procese - 8-1. del: Šum - Laboratorijske meritve šuma, ki ga proizvaja aerodinamični pretok skozi regulacijske ventile (IEC 60534-8-1:2005)

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ICS 23.060.40; 17.140.20; 25.040.40 Supersedes EN 60534-8-1:2000

English version
Industrial-process control valves
Part 8-1: Noise considerations -
Laboratory measurement of noise
generated by aerodynamic flow
through control valves
(IEC 60534-8-1:2005)
Vannes de régulation des processus Stellventile für die Prozessregelung
industriels Teil 8-1: Geräuschbetrachtungen -
Partie 8-1: Considérations sur le bruit - Laboratoriumsmessungen von
Mesure en laboratoire du bruit créé Geräuschen bei gasdurchströmten
par un débit aérodynamique Stellventilen
à travers une vanne de régulation (IEC 60534-8-1:2005)
(CEI 60534-8-1:2005)
This European Standard was approved by CENELEC on 2005-09-01. CENELEC 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 Central Secretariat or to any CENELEC 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 CENELEC member into its own language and
notified to the Central Secretariat has the same status as the official versions.

CENELEC members are the national electrotechnical committees of Austria, Belgium, Cyprus, Czech
Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden,
Switzerland and United Kingdom.

European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung

Central Secretariat: rue de Stassart 35, B - 1050 Brussels

© 2005 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.

Ref. No. EN 60534-8-1:2005 E
The text of document 65B/558/FDIS, future edition 2 of IEC 60534-8-1, prepared by SC 65B, Devices,
of IEC TC 65, Industrial-process measurement and control, was submitted to the IEC-CENELEC
parallel vote and was approved by CENELEC as EN 60534-8-1 on 2005-09-01.
This European Standard supersedes EN 60534-8-1:2000.
This standard has been revised to obtain consistency in describing the methods for measuring internal
and external sound pressure measurements and to update the description of the instrumentation from
analog to digital.
The following dates were fixed:
– latest date by which the EN has to be implemented
at national level by publication of an identical
national standard or by endorsement (dop) 2006-07-01
– latest date by which the national standards conflicting
with the EN have to be withdrawn (dow) 2008-09-01
Annex ZA has been added by CENELEC.
Endorsement notice
The text of the International Standard IEC 60534-8-1:2005 was approved by CENELEC as a
European Standard without any modification.
- 3 - EN 60534-8-1:2005
Annex ZA
Normative references to international publications
with their corresponding European publications
The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced
document (including any amendments) applies.
NOTE Where an international publication has been modified by common modifications, indicated by (mod), the relevant
EN/HD applies.
Publication Year Title EN/HD Year
IEC 60534 Series Industrial-process control valves EN 60534 Series

1) 2)
IEC 60534-1 - Part 1: Control valve terminology and EN 60534-1 2005
general considerations
1) 2)
IEC 60534-2-3 - Part 2-3: Flow capacity - Test procedures EN 60534-2-3 1998

1) 2)
IEC 60534-8-3 - Part 8-3: Noise considerations - Control EN 60534-8-3 2000
valve aerodynamic noise prediction
1) 2)
IEC 61260 - Electroacoustics - Octave-band and EN 61260 1995
fractional-octave-band filters

IEC 61672-1 2002 Electroacoustics - Sound level meters EN 61672-1 2003
Part 1: Specifications
ISO 3744 1994 Acoustics - Determination of sound power EN ISO 3744 1995
levels of noise sources using sound
pressure - Engineering method in an
essentially free field over a reflecting
ISO 3745 2003 Acoustics - Determination of sound power EN ISO 3745 2003
levels of noise sources using sound
pressure - Precision methods for
anechoic and hemi-anechoic rooms

Undated reference.
Valid edition at date of issue.

Deuxième édition
Second edition
Vannes de régulation des processus industriels –
Partie 8-1:
Considérations sur le bruit –
Mesure en laboratoire du bruit créé par un débit
aérodynamique à travers une vanne de régulation

Industrial-process control valves –
Part 8-1:
Noise considerations –
Laboratory measurement of noise generated
by aerodynamic flow through control valves

 IEC 2005 Droits de reproduction réservés  Copyright - all rights reserved
Aucune partie de cette publication ne peut être reproduite ni No part of this publication may be reproduced or utilized in any
utilisée sous quelque forme que ce soit et par aucun procédé, form or by any means, electronic or mechanical, including
électronique ou mécanique, y compris la photocopie et les photocopying and microfilm, without permission in writing from
microfilms, sans l'accord écrit de l'éditeur. the publisher.
International Electrotechnical Commission, 3, rue de Varembé, PO Box 131, CH-1211 Geneva 20, Switzerland
Telephone: +41 22 919 02 11 Telefax: +41 22 919 03 00 E-mail: Web:
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For price, see current catalogue

60534-8-1  IEC:2005 – 3 –

1 Scope.11
2 Normative references .11
3 Terms and definitions .13
4 Symbols .13
5 Method A (external sound pressure measurement) .15
5.1 Test system.15
5.1.1 Pressure regulating devices .15
5.1.2 Test specimen .15
5.1.3 Test section piping .15
5.1.4 Pressure taps .17
5.1.5 Acoustic environment .17
5.1.6 Instrumentation.17
5.2 Test procedure .17
5.2.1 Test fluids.17
5.2.2 Sound level sensor position.17
5.2.3 Blow-down test limitations .17
5.2.4 Test data accuracy .19
5.2.5 Test data .19
5.2.6 Accuracy .21
5.3 Data evaluation .21
6 Method B (internal sound pressure measurement).27
6.1 Test system.27
6.1.1 Pressure regulating devices .27
6.1.2 Test specimen .29
6.1.3 Test section piping .29
6.1.4 Pressure taps .29
6.1.5 Number of measuring points .29
6.1.6 Instrumentation for noise measurement .29
6.2 Testing procedures.31
6.2.1 Test fluid .31
6.2.2 Fluid velocity .31
6.2.3 Background noise.31
6.2.4 Sound level sensor position.31
6.2.5 Blow-down test limitations .33
6.2.6 Test data accuracy .33
6.2.7 Test data .33
6.2.8 Accuracy .35
6.3 Data evaluation .35

Figure 1 – Control valve noise test – System components.21
Figure 2 – Test arrangements .25
Figure 3 – Arrangement of a test stand (principle).27
Figure 4 – Mounting position of the sound level meter in the pipe for Δh 0,5 mm.31

60534-8-1  IEC:2005 – 5 –

Part 8-1: Noise considerations –
Laboratory measurement of noise generated
by aerodynamic flow through control valves

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