EN ISO 11205-2009 en Acoustics - Noise emitted by machinery and equipment - Engineering method for the determination of emission sound pressure levels in situ at the work station a.pdf

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1、BS EN ISO11205:2009ICS 17.140.01; 17.140.20NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBRITISH STANDARDAcoustics Noiseemitted by machineryand equipment Engineering methodfor the determinationof emission soundpressure levels insitu at the workstation and at otherspecified po

2、sitionsusing sound intensity(ISO 11205:2003)This British Standardwas published under theauthority of the StandardsPolicy and StrategyCommittee on 30 April2010 BSI 2010ISBN 978 0 580 67681 9Amendments/corrigenda issued since publicationDate CommentsBS EN ISO 11205:2009National forewordThis British St

3、andard is the UK implementation of EN ISO 11205:2009.It is identical to ISO 11205:2003. It supersedes BS EN ISO 11205:2003which is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee EH/1/4, Machinery noise.A list of organizations represented on this committee can b

4、e obtained onrequest to its secretary.This publication does not purport to include all the necessary provisionsof a contract. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunityfrom legal obligations.EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE N

5、ORMEN ISO 11205August 2009ICS 17.140.01 Supersedes EN ISO 11205:2003 English VersionAcoustics - Noise emitted by machinery and equipment -Engineering method for the determination of emission soundpressure levels in situ at the work station and at other specifiedpositions using sound intensity (ISO 1

6、1205:2003)Acoustique - Bruits mis par les machines et lesquipements - Mthode dexpertise pour la dterminationpar intensimtrie des niveaux de pression acoustiquedmission in situ au poste de travail et en dautrespositions spcifies (ISO 11205:2003)Akustik - Geruschabstrahlung von Maschinen undGerten - V

7、erfahren der Genauigkeitsklasse 2 zurBestimmung von Emissions-Schalldruckpegeln amArbeitsplatz und an anderen festgelegten Orten unterEinsatzbedingungen aus Schallintensittsmessungen (ISO11205:2003)This European Standard was approved by CEN on 27 July 2009.CEN members are bound to comply with the CE

8、N/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard 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

9、 any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other 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.

10、CEN members are the national 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, Sw

11、eden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: Avenue Marnix 17, B-1000 Brussels 2009 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref.

12、 No. EN ISO 11205:2009: EBS EN ISO 11205:2009EN ISO 11205:2009 (E) 3 Foreword The text of ISO 11205:2003 has been prepared by Technical Committee ISO/TC 43 “Acoustics” of the International Organization for Standardization (ISO) and has been taken over as EN ISO 11205:2009 by Technical Committee CEN/

13、TC 211 “Acoustics” the secretariat of which is held by DS. 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 February 2010, and conflicting national standards shall be withdrawn at the latest by Feb

14、ruary 2010. 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 all such patent rights. This document supersedes EN ISO 11205:2003. This document has been prepare

15、d under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports essential requirements of EU Directives. For relationship with EU Directives, see informative Annexes ZA and ZB, which are integral parts of this document. According to the CEN/CENELEC Int

16、ernal Regulations, the national standards organizations of the following 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, M

17、alta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Endorsement notice The text of ISO 11205:2003 has been approved by CEN as a EN ISO 11205:2009 without any modification. BS EN ISO 11205:2009EN ISO 11205:2009 (E) 4 Annex ZA (i

18、nformative) Relationship between this European Standard and the Essential Requirements of EU Directive 98/37/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 Essential Requi

19、rements of the New Approach Directive 98/37/EC, amended by 98/79/EC on machinery. Once this standard is cited in the Official Journal of the European Union under that Directive and has been implemented as a national standard in at least one Member State, compliance with the normative clauses of this

20、 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 within the scop

21、e of this standard. BS EN ISO 11205:2009EN ISO 11205:2009 (E) 5 Annex 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 Europe

22、an Free Trade Association to provide a means of conforming to Essential Requirements of the New Approach Directive 2006/42/EC on machinery. Once this standard is cited in the Official Journal of the European Union under that Directive and has been implemented as a national standard in at least one M

23、ember State, compliance with the normative clauses 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

24、 be applicable to the product(s) falling within the scope of this standard. BS EN ISO 11205:2009ISO 11205:2003(E) ISO 2003 All rights reserved iiiContents Page Foreword iv 1 Scope 1 2 Normative references . 1 3 Terms and definitions. 1 4 Measurement uncertainty. 3 5 Principle . 4 6 Instrumentation .

25、 4 6.1 General. 4 6.2 Calibration 4 7 Installation and operation of the source. 5 7.1 General. 5 7.2 Location of the machine. 5 7.3 Mounting of the machine 5 7.4 Auxiliary equipment 6 7.5 Operation of the machine under test 6 8 Test procedure 7 8.1 Applicability. 7 8.2 Measurement time interval. 7 8

26、.3 Measurements . 8 8.4 Wind and gas flows. 9 8.5 Criteria for qualification of the measurement 9 8.6 Criterion for background noise . 9 8.7 Frequency range of measurements 9 8.8 Evaluation of the measurement result 9 9 Information to be recorded 10 9.1 General. 10 9.2 Machine under test . 10 9.3 Te

27、st conditions 10 9.4 Acoustic environment 10 9.5 Instrumentation . 10 9.6 Location of specified positions . 11 9.7 Noise data 11 10 Information to be reported . 11 Annex A (normative) Criterion for the adequacy of the direction of the sound intensity vector. 12 Annex B (normative) Procedure for freq

28、uencies higher than 5 000 Hz 14 Annex C (normative) Procedure in case the measurement fails to qualify 15 Annex D (informative) Example of a test table 16 Bibliography . 17 BS EN ISO 11205:2009ISO 11205:2003(E) iv ISO 2003 All rights reservedForeword ISO (the International Organization for Standardi

29、zation) 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 b

30、e 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 Standa

31、rds 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 Inter

32、national 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 11205 w

33、as prepared by Technical Committee ISO/TC 43, Accoustics, Subcommittee SC 1, Noise. BS EN ISO 11205:2009INTERNATIONAL STANDARD ISO 11205:2003(E) ISO 2003 All rights reserved 1Acoustics Noise emitted by machinery and equipment Engineering method for the determination of emission sound pressure levels

34、 in situ at the work station and at other specified positions using sound intensity 1 Scope This International Standard specifies an engineering method (grade 2 accuracy) to determine the emission sound pressure level of machines in situ, at the work station or at other specified positions, using so

35、und intensity. It is an alternative to ISO 11201, ISO 11202 and ISO 11204 for in situ measurements. It is applicable to all kinds of test environments provided that the requirements on background noise and field indicators are fulfilled. This International Standard is applicable to equipment emittin

36、g stationary broadband noise. The noise can differ between operational cycles and can be with or without discrete frequency or narrow band components. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edit

37、ion cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 7574-1, Acoustics Statistical methods for determining and verifying stated noise emission values of machinery and equipment Part 1: General considerations and definitions

38、ISO 12001, Acoustics Noise emitted by machinery and equipment Rules for the drafting and presentation of a noise test code IEC 60942:2003, Electroacoustics Sound calibrators IEC 61043:2003, Electroacoustics Instruments for the measurement of sound intensity Measurements with pairs of pressure sensin

39、g microphones 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 sound intensity IGtime-averaged instantaneous flow of sound energy per unit of area and per unit time in the direction of the local instantaneous acoustic particle velocity in a te

40、mporally stationary sound field 01lim ( ) ( ) dTTI ptut tT=GGBS EN ISO 11205:2009ISO 11205:2003(E) 2 ISO 2003 All rights reservedwhere p(t) is the instantaneous sound pressure at a point, in pascals; ()utGis the associated instantaneous particle velocity at the same point, in metres per second; T is

41、 the integration period, in seconds; NOTE The sound intensity is a vectorial quantity. It is expressed in watts per square metre. 3.2 sound intensity vector xyzIGvector sum of three measured orthogonal intensity components NOTE It is expressed in watts per square metre. 3.3 level of the sound intens

42、ity vector LIxyzten times the logarithm to the base 10 of the ratio of the modulus of the sound intensity vector to the reference intensity I0, in decibels, as given by 010 lg dBxyzIxyzILI=GNOTE The reference sound intensity is I0= 1012W/m2. 3.4 sound field pressure-intensity indicator or field indi

43、cator FpIxyzdifference, in decibels, between the time-averaged measured sound pressure level, Lp, and the level of the sound intensity vector, LIxyz, given by FpIxyz= Lp LIxyzNOTE 1 When the indicator is determined for each of the Cartesian coordinates x, y and z, it is denoted FpIx, FpIyand FpIzres

44、pectively. NOTE 2 In ISO 9614-1 the notation F2is used. 3.5 pressure-residual intensity index pI0difference, in decibels, between the indicated sound pressure level and the sound intensity level when the intensity probe is placed and oriented in a sound field such that the sound intensity is zero EX

45、AMPLE This can be achieved in an acoustic coupler, or other suitable unit that has been designed for the probe so that the microphones are transverse to the direction of propagation of plane sound waves. 3.6 emission sound pressure level Lpsound pressure level at a specified position near a machine,

46、 when the machine is in operation under specified operating and mounting conditions on a reflecting plane surface, excluding the effects of background noise as well as the effect of reflections other than those from the plane or planes permitted for the purpose of the test NOTE It is expressed in de

47、cibels. BS EN ISO 11205:2009ISO 11205:2003(E) ISO 2003 All rights reserved 33.7 specified position position defined in relation to a machine, including, but not limited to, an operators position NOTE The position can be a single, fixed point, or a combination of points along a path or on a surface l

48、ocated at a specified distance from the machine, as described in the relevant test code, if any. Positions located in the vicinity of a work station, or in the vicinity of an unattended machine, may be identified as “bystander positions”. 3.8 dynamic capability index Lddifference, in decibels, betwe

49、en the pressure-residual intensity index and the bias error factor, K d0pIL K= NOTE The value of K is 10 dB in this International Standard. 3.9 hemi-free field intensity correction K5correction to account for the fact that the sound intensity level is slightly smaller than the sound pressure level in a hemi-free field NOTE 1 In this International Standard, K5= 1 dB. NOTE 2 By introducing this correction, the risk of a small systematic underestimate of the emission sound pressure level is minimized, see