1、January 2009DEUTSCHE NORM English price group 15No part of this standard may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS 17.140.20; 23.140; 23.
2、160!$UK“1504056www.din.deDDIN EN ISO 2151Acoustics Noise test code for compressors and vacuum pumps Engineering method (grade 2) (ISO 2151:2004)English version of DIN EN ISO 2151:2009-01Akustik Geruschmessnorm fr Kompressoren und Vakuumpumpen Verfahren der Genauigkeitsklasse 2 (ISO 2151:2004)Englisc
3、he Fassung DIN EN ISO 2151:2009-01SupersedesDIN EN ISO 2151:2004-06www.beuth.deDocument comprises 33 pagesDIN EN ISO 2151:2009-01 2 Start of validity This standard takes effect on 1 January 2009. DIN EN ISO 2151:2004-06 may be used in parallel until 28 December 2009. National foreword This standard
4、includes safety requirements. This standard has been prepared by Technical Committee CEN/TC 232 “Compressors Safety” (Secretariat: SIS, Sweden). The responsible German body involved in its preparation was the Normenausschuss Maschinenbau (Mechanical Engineering Standards Committee), Section Kompress
5、oren und Drucklufttechnik. Amendment of the European Machinery Directive has made it necessary to review the previously valid standard, EN ISO 2151:2004, in terms of the essential requirements of the new European Machinery Directive, 2006/42/EC. This standard contains specifications meeting the esse
6、ntial requirements set out in Annex I of the “Machinery Directive”, Directive 98/37/EC, (valid until 28 December 2009) and the “revised Machinery Directive”, Directive 2006/42/EC, which takes effect on 29 December 2009. These directives apply to compressors and vacuum pumps which are either first pl
7、aced on the market or commissioned within the EEA, and serve to facilitate proof of compliance with the essential requirements. Once this standard is cited in the Official Journal of the European Union, it is deemed a “harmonized” standard and thus, a manufacturer applying this standard may assume c
8、ompliance with the requirements of the Machinery Directive (“presumption of conformity”). The technical substance of the standard has not been changed. For the International Standards referred to in clause 2 and in the Bibliography of this document there are no national standards available unless th
9、ey have been published as DIN EN or DIN EN ISO standards with the same number. Amendments This standard differs from DIN EN ISO 2151:2004-06 as follows: a) The title of the standard has been slightly modified. b) Annex ZA (informative) “Relationship between this European Standard and the Essential R
10、equirements of EU Directive 98/37/EC” has been revised. c) Annex ZB (informative) “Relationship between this European Standard and the Essential Requirements of EU Directive 2006/42/EC” has been included. Previous editions DIN 45635-13: 1977-02 DIN EN ISO 2151: 2004-06 EUROPEAN STANDARD NORME EUROPE
11、NNE EUROPISCHE NORM EN ISO 2151 August 2008 ICS 17.140.20; 23.140 Supersedes EN ISO 2151:2004English Version Acoustics - Noise test code for compressors and vacuum pumps -Engineering method (Grade 2) (ISO 2151:2004) Acoustique - Code dessai acoustique pour les compresseurs et les pompes vide - Mthod
12、e dexpertise (classe de prcision 2) (ISO 2151:2004) Akustik - Geruschmessnorm fr Kompressoren und Vakuumpumpen - 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 wh
13、ich 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 Management Centre or to any CEN member. This European
14、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 Management Centre has the same status as the official versions. CEN members are the nationa
15、l standards bodies of 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, Spain, Sweden, Switzerland and Unit
16、ed Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2008 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 2151:2
17、008: EContents Page Foreword .3 Introduction.4 1 Scope5 2 Normative references6 3 Terms and definitions .6 4 Sound power level determination9 4.1 General .9 4.2 Uncertainty.10 4.3 Test arrangement 10 5 Emission sound pressure level determination at the work station .11 5.1 Work station.11 5.2 Determ
18、ination of LpWSAfrom LWA12 5.3 Method for determination of LpWSAwhen LWAis not to be determined.13 6 Mounting, loading and operating conditions of compressor or vacuum pump during noise tests13 6.1 General .13 6.2 Mounting 13 6.3 Loading and operating conditions 13 7 Test report14 8 Declaration and
19、verification of noise emission values .14 Annex A (informative) Example test reports 15 Annex B (informative) Model form for declared noise emission values .21 Annex C (normative) Parallelepiped measurement surface.22 Annex D (normative) Hemispherical measurement surface.24 Annex E (informative) Exa
20、mples of reference box for different machines.26 Annex ZA (informative) Relationship between this European Standard and the Essential Requirements of EU Directive 98/37 EEC .29 Annex ZB (informative) Relationship between this European Standard and the Essential Requirements of EU Directive 2006/42/E
21、C30 Bibliography31 2 DIN EN ISO 2151:2009-01 EN ISO 2151:2008 (E) Foreword 3 EN ISO 2151:2008 (E) DIN EN ISO 2151:2009-01 The text of ISO 2151:2004 has been prepared by Technical Committee ISO/TC 118 “Compressors, pneumatic tools and pneumatic machines” of the International Organization for Standard
22、ization (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 European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the la
23、test 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 elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or a
24、ll 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 European Free Trade Association, and supports essential requirements of EC Directive(s). For relationship with EC Directives, see informat
25、ive 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 countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finla
26、nd, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Endorsement notice The text of ISO 2151:2004 has been approved by CEN as a EN IS
27、O 2151:2008 without any modification. 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
28、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-lo
29、ad 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
30、give requirements for octave band analysis, however, where there is an interest this can be undertaken. 4 DIN EN ISO 2151:2009-01 EN ISO 2151:2008 (E) 1 Scope This International Standard specifies methods for the measurement, determination and declaration of the noise emission from portable and stat
31、ionary 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 lev
32、el 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 injected air compressors, oil-free air compressors, compressors for handling hazardous gases (gas compressors), compr
33、essors 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 compressors (over 1 000 kW input power), portable and skid-mounted air compressors, and rotary positive displace
34、ment 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 working pressure of less than 0,5 bar/0,05 MPa, refrigerant compressors used in refrigerating systems or heat pumps,
35、hand-held portable compressors. 5 EN ISO 2151:2008 (E) DIN EN ISO 2151:2009-01 2 Normative references 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 ref
36、erenced document (including any amendments) applies. ISO 3744:1994, Acoustics Determination of sound power levels of noise sources using sound pressure Engineering method in an essentially free field over a reflecting plane ISO 4871:1996, Acoustics Declaration and verification of noise emission valu
37、es 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 ISO 9614-2:1996, Acoustics Determination of sound power levels of noise sources using sound intensity Part 2: Measurement by scan
38、ning 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 Engineering method in an essentially free field over a reflecting plane ISO 11202:1995, Acoustics Noise emitted by machinery and eq
39、uipment 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 machinery and equipment Determination of emission sound pressure levels at a work station and at other specified positions from th
40、e 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 and definitions apply. 3.1 compressor machine which compresses air, gases or vapours to a pressure higher than the inlet pressure NO
41、TE 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, improving and/or maintaining vacuum NOTE A vacuum pump comprises the bare pump, the prime mover and any component or device supplied wi
42、th 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 NOTE 1 Adapted from ISO 11203:1995. NOTE 2 Noise emission values can be incorporated in a product label and/or published in a produc
43、t 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 other specified positions in the vicinity of the product (if any). 6 DIN EN ISO 2151:2009-01 EN ISO 2151:2008 (E) 3.4 emission sound
44、 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
45、which the machine under test is placed NOTE Adapted from ISO 11203:1995. 3.5 emission sound pressure level Lpten times the logarithm to the base 10 of the ratio of the square of the emission sound pressure to the square of the reference sound pressure, expressed in decibels, and measured with a part
46、icular time weighting and a particular frequency weighting selected from those defined in IEC 61672-1:2002 EXAMPLE A-weighted emission sound pressure level, LpA. NOTE 1 The reference sound pressure is 20 Pa. NOTE 2 LpAlevels are established as LpAeqTtime-averaged sound pressure levels measured with
47、an integrating- averaging sound level meter meeting the requirements of IEC 61672-1:2002. LpAeqTis usually abbreviated to LpA. For further details of LpAeqTsee ISO 3744:1994, 3.2.1. NOTE 3 Adapted from ISO 11203:1995. 3.6 sound power W rate per unit time, expressed in watts, at which airborne sound
48、energy is radiated by a source ISO 3744:1994 3.7 sound power level LWten times the logarithm to the base 10 of the ratio of the sound power radiated by the source under test to the reference sound power, expressed in decibels NOTE 1 The frequency weighting or the width of the frequency band must be
49、indicated. For example, A-weighted sound power level LWA. NOTE 2 The reference sound power is 1 pW (1 pW = 1012W). NOTE 3 Adapted from ISO 3744:1994. 3.8 sound intensity product of the sound pressure at a point and the associated particle velocity NOTE 1 It is a vectorial quantity. NOTE 2 See ISO 9614-1 and ISO 9614-2 for further guidance on sound intensity. 7 EN ISO 2151:2008 (E) DIN EN ISO 2151:2009-01 3.9 partial sound power Pitime-averaged rate of flow of sound energy through an e
