1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN ISO 11202:2010Acoustics Noise emittedby machinery and equipment Determination of emissionsound pressure levels at awork station and at otherspecified positions applyingappr
2、oximate environmentalcorrections (ISO 11202:2010)BS EN ISO 11202:2010 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN ISO11202:2010. It supersedes BS EN ISO 11202:2009 which is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee
3、 EH/1/4, Machinery noise.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. BSI 2010ISBN 978 0 580 53885 8ICS 17.140
4、.20Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 31 August 2010Amendments issued since publicationDate Text affectedEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE
5、NORM EN ISO 11202 May 2010 ICS 17.140.20 Supersedes EN ISO 11202:2009English Version Acoustics - Noise emitted by machinery and equipment - Determination of emission sound pressure levels at a work station and at other specified positions applying approximate environmental corrections (ISO 11202:201
6、0) Acoustique - Bruit mis par les machines et quipements -Dtermination des niveaux de pression acoustique dmission au poste de travail et en dautres positions spcifies en appliquant des corrections denvironnement approximatives (ISO 11202:2010) Akustik - Geruschabstrahlung von Maschinen und Gerten -
7、 Bestimmung von Emissions-Schalldruckpegeln am Arbeitsplatz und an anderen festgelegten Orten unter Anwendung angenherter Umgebungskorrekturen (ISO 11202:2010) This European Standard was approved by CEN on 22 April 2010. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which
8、 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 Sta
9、ndard 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 national s
10、tandards bodies of Austria, Belgium, Bulgaria, Croatia, 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 a
11、nd United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2010 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 1
12、1202:2010: EBS EN ISO 11202:2010EN ISO 11202:2010 (E) 3 Foreword This document (EN ISO 11202:2010) has been prepared by Technical Committee ISO/TC 43 “Acoustics” in collaboration with Technical Committee CEN/TC 211 “Acoustics” the secretariat of which is held by DS. This European Standard shall be g
13、iven the status of a national standard, either by publication of an identical text or by endorsement, at the latest by November 2010, and conflicting national standards shall be withdrawn at the latest by November 2010. Attention is drawn to the possibility that some of the elements of this document
14、 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 11202:2009. This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Associ
15、ation, and supports essential requirements of EU Directive. For relationship with EU Directive, 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 implem
16、ent this European Standard: Austria, Belgium, Bulgaria, Croatia, 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, Swit
17、zerland and the United Kingdom. Endorsement notice The text of ISO 11202:2010 has been approved by CEN as a EN ISO 11202:2010 without any modification. BS EN ISO 11202:2010EN ISO 11202:2010 (E) 4 Annex ZA (informative) Relationship between this European Standard and the Essential Requirements of EU
18、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 Essential Requirements of the New Approach Directive 2006/42/EC on machinery. Once this standard is cited
19、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 standard confers, within the limits of the scope of this standard, a presumption of conformity with the corre
20、sponding 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 11202:2010ISO 11202:2010(E) ISO 2010 All rights reserved iiiContents Page For
21、eword iv Introduction.v 1 Scope1 2 Normative references2 3 Terms and definitions .3 4 Instrumentation .8 5 Procedures to determine the local environmental correction, K3A8 6 Test environment.9 7 Measured quantities11 8 Quantities to be determined.11 9 Mounting and operation of source under test12 10
22、 Microphone positions .14 11 Measurements .16 12 Measurement uncertainty.18 13 Information to be recorded.21 14 Test report22 Annex A (normative) Environmental correction for a work station Determination of the local environmental correction, K3.24 Annex B (normative) Criteria for background noise f
23、or measurements in frequency bands 30 Annex C (informative) Guidance on the development of information on measurement uncertainty 32 Annex D (informative) Principles of the methodology 38 Annex E (informative) Example of a test table.39 Bibliography40 BS EN ISO 11202:2010ISO 11202:2010(E) iv ISO 201
24、0 All rights reservedForeword 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
25、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
26、 (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 com
27、mittees 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
28、 be held responsible for identifying any or all such patent rights. ISO 11202 was prepared by Technical Committee ISO/TC 43, Acoustics, Subcommittee SC 1, Noise. This second edition cancels and replaces the first edition (ISO 11202:1995), which has been technically revised. BS EN ISO 11202:2010ISO 1
29、1202:2010(E) ISO 2010 All rights reserved vIntroduction This International Standard specifies a method for determining the emission sound pressure levels at a work station and at other well defined positions, in the vicinity of a machine or piece of equipment, in situ. It is one of a series (ISO 112
30、0015to ISO 1120519) which specifies various methods for determining the emission sound pressure level at a work station and at other specified positions of a machine or equipment. ISO 1120015gives guidance on the choice of the method to be used to determine the emission sound pressure levels of mach
31、inery and equipment. The method specified in this International Standard differs from those of ISO 1120116in determining and applying a local environmental correction. It differs from ISO 1120418by using an approximate method to determine the directivity of the sound radiation of a machine with a re
32、duced number of measurement positions or even with no additional measurement. The acoustical properties of the room have to be determined to qualify the test environment and to determine a correction for local environmental influences applied to the measured sound pressure levels. With the method sp
33、ecified in this International Standard, results of accuracy grade 2 (engineering grade) or accuracy grade 3 (survey grade) are obtained. For the determination of the local environmental correction two procedures are specified in this International Standard. The first procedure (see A.1) is based on
34、the assumption that a well-defined part of the machine, visible from and with free propagation conditions to the work station or the specified position, radiates the sound responsible for the sound pressure level at this position. With this assumption, only a sound pressure measurement at the work s
35、tation and an acoustical qualification of the room are necessary to determine the local environmental correction. The second procedure (see A.2) is generally applicable. No assumptions about the directivity of the radiation or the source location are necessary, because this directivity is determined
36、 using an approximate method with few additional measurement positions. The approximate character of this method is taken into account in qualifying the grade of accuracy of the result. In general, the emission sound pressure levels are less than or equal to those that occur when the machinery or eq
37、uipment is operating in its normal surroundings. This is because the sound pressure levels are determined by excluding the effects of background noise, as well as the effects of reflections other than those from the reflecting plane on which the machine under test is placed. For determination or cal
38、culation of the sound pressure level at the operators position with the machine operating in a room, both sound power level and sound pressure level are required (as well as information on the room properties or reflections and noise from other sound sources or machines). A method of calculating the
39、 sound pressure levels in the vicinity of a machine operating alone in a workroom is given in ISO/TR 11690-320. Commonly observed differences are 1 dB to 5 dB, but in extreme cases the difference may be even greater. BS EN ISO 11202:2010BS EN ISO 11202:2010INTERNATIONAL STANDARD ISO 11202:2010(E) IS
40、O 2010 All rights reserved 1Acoustics Noise emitted by machinery and equipment Determination of emission sound pressure levels at a work station and at other specified positions applying approximate environmental corrections 1 Scope 1.1 General This International Standard specifies a method for dete
41、rmining the emission sound pressure levels of machinery or equipment, at a work station and at other specified positions nearby, in situ. A work station is occupied by an operator and may be located in open space, in the room where the source under test operates, in a cab fixed to the source under t
42、est, or in an enclosure remote from the source under test. One or more specified positions may be located in the vicinity of a work station, or in the vicinity of an attended or unattended machine. Such positions are sometimes referred to as bystander positions. Emission sound pressure levels are de
43、termined as A-weighted levels. Additionally, levels in frequency bands and C-weighted peak emission sound pressure levels can be determined in accordance with this International Standard, if required. NOTE 1 The contents of the series ISO 1120015to ISO 1120519are summarized in ISO 1120015. Methods a
44、re given for determining a local environmental correction (subject to a specified limiting maximum value) to be applied to the measured sound pressure levels in order to eliminate the influence of reflecting surfaces other than the plane on which the source under test is placed. This correction is b
45、ased on the equivalent sound absorption area of the test room and on radiation characteristics (source location or directivity at the work station). With the method specified in this International Standard, results of accuracy grade 2 (engineering grade) or accuracy grade 3 (survey grade) are obtain
46、ed. Corrections are applied for background noise and, as described above, for the acoustic environment. Instructions are given for the mounting and operation of the source under test and for the choice of microphone positions for the work station and for other specified positions. One purpose of the
47、 measurements is to permit comparison of the performance of different units of a given family of machines, under defined environmental conditions and standardized mounting and operating conditions. NOTE 2 The data obtained can also be used for the declaration and verification of emission sound press
48、ure levels as specified in ISO 48719. 1.2 Types of noise and noise sources The method specified in this International Standard is suitable for all types of noise (steady, non-steady, fluctuating, isolated bursts of sound energy, etc.) defined in ISO 12001. The method specified in this International
49、Standard is applicable to all types and sizes of noise sources. NOTE Throughout this International Standard the words “machine” and “source under test” are used to represent either a machine or a piece of equipment. BS EN ISO 11202:2010ISO 11202:2010(E) 2 ISO 2010 All rights reserved1.3 Test environment The type of test environment influences the accuracy of the determination of emission sound pressure levels. For this International Standard, any room meeting prescribed requirements is applicable. These requirements on
