1、BS EN ISO2151:2008ICS 17.140.20; 23.140NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBRITISH STANDARDAcoustics Noise testcode for compressorsand vacuum pumps Engineeringmethod (Grade 2) (ISO2151:2004)This British Standardwas published under theauthority of the StandardsPolicy
2、 and StrategyCommittee on 32008 BSI 2008ISBN 978 0 580 62586 2Amendments/corrigenda issued since publicationDate CommentsBS EN ISO 2151:2008National forewordThis British Standard is the UK implementation of EN ISO 2151:2008. Itis identical to ISO 2151:2004. It supersedes BS EN ISO 2151:2004 whichis
3、withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee MCE/8, Compressors, pneumatic tools, pneumatic machinesand vacuum technology.A list of organizations represented on this committee can be obtained onrequest to its secretary.This publication does not purport to inc
4、lude all the necessary provisionsof a contract. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunityfrom legal obligations.0 SeptemberEUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN ISO 2151August 2008ICS 17.140.20; 23.140 Supersedes EN ISO 21
5、51:2004 English VersionAcoustics - Noise test code for compressors and vacuum pumps- Engineering method (Grade 2) (ISO 2151:2004)Acoustique - Code dessai acoustique pour lescompresseurs et les pompes vide - Mthode dexpertise(classe de prcision 2) (ISO 2151:2004)Kompressoren und Vakuumpumpen - Bestim
6、mung derGeruschemission - Verfahren der Genauigkeitsklasse 2(ISO 2151:2004)This European Standard was approved by CEN on 18 July 2008.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national sta
7、ndard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the CEN Management Centre or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other
8、language made by translationunder the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as theofficial versions.CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finl
9、and,France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITE
10、E FR NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2008 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN ISO 2151:2008: EBS EN ISO 2151:2008EN ISO 2151:2008 (E) 3 Foreword The text of ISO 2151:2004 has been prepared by
11、 Technical Committee ISO/TC 118 “Compressors, pneumatic tools and pneumatic machines” of the International Organization for Standardization (ISO) and has been taken over as EN ISO 2151:2008 by Technical Committee CEN/TC 232 “Compressors - Safety” the secretariat of which is held by SIS. This Europea
12、n Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by February 2009, and conflicting national standards shall be withdrawn at the latest by December 2009. Attention is drawn to the possibility that some of the elem
13、ents of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes EN ISO 2151:2004. This document has been prepared under a mandate given to CEN by the European Commission and the Europe
14、an Free Trade Association, and supports essential requirements of EC Directive(s). For relationship with EC Directives, see informative Annex ZA and ZB, which are integral part of this document. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following
15、countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia,
16、 Spain, Sweden, Switzerland and the United Kingdom. Endorsement notice The text of ISO 2151:2004 has been approved by CEN as a EN ISO 2151:2008 without any modification. BS EN ISO 2151:2008EN ISO 2151:2008 (E) 4 Annex ZA (informative) Relationship between this European Standard and the Essential Req
17、uirements of EU Directive 98/37 EEC This European Standard has been prepared under a mandate given to CEN by the European Commissionand the European Free Trade Association to provide a means of conforming to Essential Requirement ESR 1.7.4.f) of the New Approach Directive 98/37 EEC. Once this standa
18、rd 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 pr
19、esumption 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. BS EN ISO 2151:2008EN ISO 2151:2008 (E) 5 Annex
20、ZB (informative) Relationship between this European Standard and the Essential Requirements of EU Directive 2006/42/EC 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 Essentia
21、l Requirement ESR 1.7.4.2 u) and of the New Approach Directive 2006/42/EC on machinery. 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 cla
22、uses of this standard confers, within the limits of the scope of this standard, a presumption of conformity with the relevant Essential Requirements of that Directive and associated EFTA regulations. WARNING Other requirements and other EU Directives may be applicable to the product(s) falling withi
23、n the scope of this standard. BS EN ISO 2151:2008ISO 2151:2004(E) ISO 2004 All rights reserved iiiContents 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
24、Emission sound pressure level determination at the work station . 7 5.1 Work station 7 5.2 Determination of LpWSAfrom LWA8 5.3 Method for determination of LpWSAwhen LWAis not to be determined 9 6 Mounting, loading and operating conditions of compressor or vacuum pump during noise tests 9 6.1 General
25、. 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
26、 surface 18 Annex D (normative) Hemispherical measurement surface 20 Annex E (informative) Examples of reference box for different machines. 22 Bibliography . 25 BS EN ISO 2151:2008ISO 2151:2004(E) iv ISO 2004 All rights reservedForeword ISO (the International Organization for Standardization) is a
27、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
28、 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 draft
29、ed 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 Stan
30、dard 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
31、 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. BS EN ISO 2151:2008ISO 2151:2004(E) ISO 2004 All rights reserved v
32、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 sou
33、nd 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 va
34、cuum 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 anal
35、ysis, however, where there is an interest this can be undertaken. BS EN ISO 2151:2008BS EN ISO 2151:2008INTERNATIONAL STANDARD ISO 2151:2004(E) ISO 2004 All rights reserved 1Acoustics Noise test code for compressors and vacuum pumps Engineering method (Grade 2) 1 Scope This International Standard sp
36、ecifies 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 noi
37、se emission expressed as the sound power level under specified load conditions, the emission sound pressure level at the work station under specified load conditions. It is applicable to compressors for various types of gases, oil-lubricated air compressors, oil-flooded air compressors, water inject
38、ed air compressors, oil-free air compressors, compressors for handling hazardous gases (gas compressors), compressors for handling oxygen, compressors for handling acetylene, high-pressure compressors over 4 Mpa (40 bar), compressors for application at low inlet temperatures, i.e. below 0 C, large c
39、ompressors (over 1 000 kW input power), portable and skid-mounted air compressors, and rotary positive displacement blowers and centrifugal blowers and exhausters in applications u 0,2 MPa (u 2 bar). It is not applicable to compressors for gases other than acetylene having a maximum allowable workin
40、g pressure of less than 0,5 bar/0,05 MPa, refrigerant compressors used in refrigerating systems or heat pumps, hand-held portable compressors. BS EN ISO 2151:2008ISO 2151:2004(E) 2 ISO 2004 All rights reserved2 Normative references The following referenced documents are indispensable for the applica
41、tion 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. ISO 3744:1994, Acoustics Determination of sound power levels of noise sources using sound pressure Engineering method
42、 in an essentially free field over a reflecting plane ISO 4871:1996, Acoustics Declaration and verification of noise emission values of machinery and equipment ISO 9614-1:1993, Acoustics Determination of sound power levels of noise sources using sound intensity Part 1: Measurement at discrete points
43、 ISO 9614-2:1996, Acoustics Determination of sound power levels of noise sources using sound intensity Part 2: Measurement by scanning ISO 11201:1995, Acoustics Noise emitted by machinery and equipment Measurement of emission sound pressure levels at a work station and at other specified positions E
44、ngineering method in an essentially free field over a reflecting plane ISO 11202:1995, Acoustics Noise emitted by machinery and equipment Measurement of emission sound pressure levels at a work station and at other specified positions Survey method in situ ISO 11203:1995, Acoustics Noise emitted by
45、machinery and equipment Determination of emission sound pressure levels at a work station and at other specified positions from the sound power level IEC 61672-1:2002, Electroacoustics Sound level meters Specifications 3 Terms and definitions For the purposes of this document, the following terms an
46、d definitions apply. 3.1 compressor machine which compresses air, gases or vapours to a pressure higher than the inlet pressure NOTE A compressor comprises the bare compressor itself, the prime mover and any component or device supplied with the compressor. 3.2 vacuum pump device for creating, impro
47、ving and/or maintaining vacuum NOTE A vacuum pump comprises the bare pump, the prime mover and any component or device supplied with the vacuum pump. 3.3 emission airborne sound radiated by a well-defined noise source (e.g. the machine under test) under specified operating and mounting conditions NO
48、TE 1 Adapted from ISO 11203:1995. NOTE 2 Noise emission values can be incorporated in a product label and/or published in a product specification. The basic noise emission descriptors are the sound power level of the product itself and the emission sound pressure levels at the work station and at ot
49、her specified positions in the vicinity of the product (if any). BS EN ISO 2151:2008ISO 2151:2004(E) ISO 2004 All rights reserved 33.4 emission sound pressure p sound pressure, expressed in pascals, at a specified position near a noise source, when the source is in operation under specified operating and mounting conditions on a reflecting plane surface, corrected for background noise and reflections from room surfaces other than the plane over which the machine unde
