EN ISO 2151:2004
(Main)Acoustics - Noise test code for compressors and vacuum pumps Engineering method (grade 2) (ISO 2151:2004)
Acoustics - Noise test code for compressors and vacuum pumps Engineering method (grade 2) (ISO 2151:2004)
This noise test code specifies methods for measurement, determination and declaration of the noise emission from compressors and vacuum pumps: a) measurement of the sound pressure level at the indicated position of the operator; b) derivation of the noise emission expressed as the sound power level of the machine under specified load conditions. This noise test code applies to stationary and portable compressors as specified in EN 1012-1, "Compressors - Safety" and vacuum pumps as specified in EN 1012-2 "Vacuum Pumps - Safety".
Kompressoren und Vakuumpumpen - Bestimmung der Geräuschemission - Verfahren der Genauigkeitsklasse 2 (ISO 2151:2004)
Diese Geräuschprüfvorschrift legt Verfahren zur Messung, Bestimmung und Angabe der Geräuschemission von Kompressoren und Vakuumpumpen fest: a) Messung des Schalldruckpegels am angegebenen Bedienerplatz; b) Ableitung der Geräuschemission ausgedrückt als Schalleistungspegel der Maschine unter festgelegten Belastungsbedingungen. Diese Geräuschprüfvorschrift ist anwendbar auf stationäre und mobile Kompressoren gemäß EN 1012-1 "Kompressoren - Sicherheit" und Vakuumpumpen gemäß EN 1012-2 "Vakuumpumpen - Sicherheit".
Acoustique - Code d'essai acoustique pour les compresseurs et les pompes à vide - Méthode d'expertise (classe de précision 2) (ISO 2151:2004)
Le présent code d'essai acoustique fixe des méthodes de mesurage, de détermination et de déclaration de l'émission sonore provenant des compresseurs et des pompes à vide: a) mesurage du niveau de pression acoustique à la position indiquée de l'opérateur; b) calcul de l'émission sonore exprimée en niveau de puissance acoustique de la machine dans des conditions de charge spécifiées. Le présent code d'essai acoustique s'applique aux compresseurs fixes et mobiles tels que spécifiés dans l'EN 1012-1 "Compresseurs-Sécurité" et aux pompes à vide telles que spécifiées dans l'EN 1012-2 "Pompes à vide-Sécurité".
Akustika - Postopek merjenja hrupa kompresorjev in vakuumskih črpalk - Inženirska metoda (2. stopnja) (ISO 2151:2004)
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
01-september-2004
$NXVWLND3RVWRSHNPHUMHQMDKUXSDNRPSUHVRUMHYLQYDNXXPVNLKþUSDON
,QåHQLUVNDPHWRGD VWRSQMD ,62
Acoustics - Noise test code for compressors and vacuum pumps Engineering method
(grade 2) (ISO 2151:2004)
Kompressoren und Vakuumpumpen - Bestimmung der Geräuschemission - Verfahren
der Genauigkeitsklasse 2 (ISO 2151:2004)
Acoustique - Code d'essai acoustique pour les compresseurs et les pompes a vide -
Méthode d'expertise (classe de précision 2) (ISO 2151:2004)
Ta slovenski standard je istoveten z: EN ISO 2151:2004
ICS:
17.140.20 Emisija hrupa naprav in Noise emitted by machines
opreme and equipment
23.140 .RPSUHVRUMLLQSQHYPDWLþQL Compressors and pneumatic
VWURML machines
23.160 Vakumska tehnologija Vacuum technology
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD
EN ISO 2151
NORME EUROPÉENNE
EUROPÄISCHE NORM
February 2004
ICS 17.140.20; 23.140
English version
Acoustics - Noise test code for compressors and vacuum pumps
Engineering method (grade 2) (ISO 2151:2004)
Acoustique - Code d'essai acoustique pour les Akustik - Geräuschmessnorm für Kompressoren und
compresseurs et les pompes à vide - Méthode d'expertise Vakuumpumpen - Verfahren der Genauigkeitsklasse 2
(classe de précision 2) (ISO 2151:2004) (ISO 2151:2004)
This European Standard was approved by CEN on 16 January 2004.
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 Central Secretariat 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 Central Secretariat has the same status as the official
versions.
CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,
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Slovenia, Spain, Sweden, Switzerland and United Kingdom.
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© 2004 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 2151:2004: E
worldwide for CEN national Members.
CORRECTED 2004-03-17
Foreword
This document (EN ISO 2151:2004) has been prepared by Technical Committee ISO/TC 118
"Compressors, pneumatic tools and pneumatic machines" in collaboration with Technical
Committee CEN/TC 232 "Compressors - Safety", the secretariat of which is held by SIS.
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 August 2004, and conflicting national
standards shall be withdrawn at the latest by August 2004.
This document has been prepared under a mandate given to CEN by the European Commission
and the European Free Trade Association, and supports essential requirements of EU
Directive(s).
For relationship with EU Directive(s), see informative Annex ZA, which is an integral part of this
document.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of
the following countries are bound to implement this European Standard: 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.
Endorsement notice
The text of ISO 2151:2004 has been approved by CEN as EN ISO 2151:2004 without any
modifications.
ANNEX ZA
(informative)
Relationship between this European Standard and the Essential
Requirements of EU Directive 98/37 EEC
This European Standard has been prepared under a mandate given to CEN by the European
Commission and the European Free Trade Association to provide a means of conforming to
Essential Requirements of the New Approach Directive 98/37 EEC.
Once this standard is cited in the Official Journal of the European Communities under that
Directive and has been implemented as a national standard in at least one Member State,
compliance with the normative clauses of this standard given in Table ZA.1 confers, within the
limits of the scope of this standard, a presumption of conformity with the corresponding Essential
Requirements of that Directive and associated EFTA regulations.
WARNING: Other requirements and other EU Directives may be applicable to the product(s)
falling within the scope of this standard.
INTERNATIONAL ISO
STANDARD 2151
Second edition
2004-02-01
Acoustics — Noise test code for
compressors and vacuum pumps —
Engineering method (Grade 2)
Acoustique — Code d'essai acoustique pour les compresseurs et les
pompes à vide — Méthode d'expertise (classe de précision 2)
Reference number
ISO 2151:2004(E)
©
ISO 2004
ISO 2151:2004(E)
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ii © ISO 2004 – All rights reserved
ISO 2151:2004(E)
Contents Page
Foreword. iv
Introduction . v
1 Scope. 1
2 Normative references. 2
3 Terms and definitions. 2
4 Sound power level determination . 5
4.1 General. 5
4.2 Uncertainty. 6
4.3 Test arrangement. 6
5 Emission sound pressure level determination at the work station . 7
5.1 Work station. 7
5.2 Determination of L from L . 8
pWSA WA
5.3 Method for determination of L when L is not to be determined . 9
pWSA WA
6 Mounting, loading and operating conditions of compressor or vacuum pump during
noise tests. 9
6.1 General. 9
6.2 Mounting. 9
6.3 Loading and operating conditions . 9
7 Test report. 10
8 Declaration and verification of noise emission values . 10
Annex A (informative) Example test reports. 11
Annex B (informative) Model form for declared noise emission values. 17
Annex C (normative) Parallelepiped measurement surface . 18
Annex D (normative) Hemispherical measurement surface . 20
Annex E (informative) Examples of reference box for different machines. 22
Bibliography . 25
ISO 2151:2004(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.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. 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.
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.
ISO 2151 was prepared by Technical Committee ISO/TC 118, Compressors, pneumatic tools and pneumatic
machines, Subcommittee SC 6, Air compressors.
This second edition cancels and replaces the first edition (ISO 2151:1972), which has been technically revised.
iv © ISO 2004 – All rights reserved
ISO 2151:2004(E)
Introduction
The noise test code presented by this International Standard describes methods for determining and
presenting the acoustical characteristics of compressors and vacuum pumps, i.e. the total noise level from the
compressor or vacuum pump expressed as sound power level, or the emission sound pressure level at the
work station or other specified positions.
Based on current industry practice, this noise test code requires the compressor or vacuum pump under test
to be run under conditions representing the noisiest operation in typical usage — full-load for compressors
and off-load for vacuum pumps.
It needs to be noted that operators' exposure to noise depends upon the characteristics of individual
applications and environmental factors beyond the control of the manufacturers of compressors and vacuum
pumps.
This International Standard does not give requirements for octave band analysis, however, where there is an
interest this can be undertaken.
INTERNATIONAL STANDARD ISO 2151:2004(E)
Acoustics — Noise test code for compressors and vacuum
pumps — Engineering method (Grade 2)
1 Scope
This International Standard specifies methods for the measurement, determination and declaration of the
noise emission from portable and stationary compressors and vacuum pumps. It prescribes the mounting,
loading and working conditions under which measurements are to be made, and includes measurement or
determination of the noise emission expressed as
the sound power level under specified load conditions,
the emission sound pressure level at the work statio
...
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