1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN ISO 11204:2010Acoustics Noise emittedby machinery and equipment Determination of emissionsound pressure levels at a workstation and at other specifiedpositions applying acc
2、urateenvironmental corrections (ISO11204:2010)BS EN ISO 11204:2010 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN ISO11204:2010. It supersedes BS EN ISO 11204:2009 which is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee EH
3、/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 53887 2ICS 17.140.20
4、Compliance 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 NOR
5、M EN ISO 11204 May 2010 ICS 17.140.20 Supersedes EN ISO 11204:2009English Version Acoustics - Noise emitted by machinery and equipment - Determination of emission sound pressure levels at a work station and at other specified positions applying accurate environmental corrections (ISO 11204:2010) Aco
6、ustique - 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 exactes (ISO 11204:2010) Akustik - Geruschabstrahlung von Maschinen und Gerten - Bestimmung v
7、on Emissions-Schalldruckpegeln am Arbeitsplatz und an anderen festgelegten Orten unter Anwendung exakter Umgebungskorrekturen (ISO 11204:2010) This European Standard was approved by CEN on 22 April 2010. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the co
8、nditions 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 Standard exists in t
9、hree 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 standards bodies o
10、f 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 and United Kingdom
11、. 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 11204:2010: EBS EN
12、 ISO 11204:2010EN ISO 11204:2010 (E) 3 Foreword This document (EN ISO 11204:2010) 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 given the status o
13、f 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 may be the subje
14、ct 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 11204:2009. This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and suppor
15、ts 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 implement this European
16、 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, Switzerland and the U
17、nited Kingdom. Endorsement notice The text of ISO 11204:2010 has been approved by CEN as a EN ISO 11204:2010 without any modification. BS EN ISO 11204:2010EN ISO 11204:2010 (E) 4 Annex ZA (informative) Relationship between this European Standard and the Essential Requirements of EU Directive 2006/42
18、/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 in the Official J
19、ournal 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 corresponding Essentia
20、l 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 11204:2010ISO 11204:2010(E) ISO 2010 All rights reserved iiiContents Page Foreword iv Introduc
21、tion.v 1 Scope1 2 Normative references2 3 Terms and definitions .3 4 Instrumentation .7 5 Test environment.8 6 Measured quantities10 7 Quantities to be determined.11 8 Mounting and operation of source under test11 9 Microphone positions .13 10 Measurements .15 11 Measurement uncertainty.17 12 Inform
22、ation to be recorded.20 13 Test report21 Annex A (normative) Environmental correction for a work station Determination of the local environmental correction, K3.23 Annex B (normative) Criteria for background noise for measurements in frequency bands 26 Annex C (informative) Guidance on the developme
23、nt of information on measurement uncertainty 28 Annex D (informative) Principles of the methodology 34 Annex E (informative) Example of a test table.35 Bibliography36 BS EN ISO 11204:2010ISO 11204:2010(E) iv ISO 2010 All rights reservedForeword ISO (the International Organization for Standardization
24、) 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 repr
25、esented 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 ar
26、e 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 Internation
27、al 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 11204 was pre
28、pared by Technical Committee ISO/TC 43, Acoustics, Subcommittee SC 1, Noise. This second edition cancels and replaces the first edition (ISO 11204:1995), which has been technically revised. It also incorporates the Technical Corrigendum ISO 11204:1995/Cor.1:1997. BS EN ISO 11204:2010ISO 11204:2010(E
29、) 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 1120015to ISO
30、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 machinery and e
31、quipment. The method specified in this International Standard differs from those of ISO 1120116in determining and applying a local environmental correction. It differs from ISO 1120217by using an exact measurement of sound pressure levels on a reference measurement surface to determine the directivi
32、ty of the sound radiation of the machine under test. 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 specified in this Internati
33、onal Standard, results of accuracy grade 2 (engineering grade) or accuracy grade 3 (survey grade) are obtained. The method specified in this International Standard is generally applicable in situ. No assumptions about the directivity of the radiation or the source location are necessary, because thi
34、s directivity is determined measuring the sound pressure levels on an enveloping surface. The grade of accuracy of the procedure with existing conditions can be qualified as engineering or survey. In general, the emission sound pressure levels are less than or equal to those that occur when the mach
35、ine 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 calcula
36、tion 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 sou
37、nd 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 11204:2010BS EN ISO 11204:2010INTERNATIONAL STANDARD ISO 11204:2010(E) ISO 20
38、10 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 accurate environmental corrections 1 Scope 1.1 General This International Standard specifies a method for determining
39、 the emission sound pressure levels of machinery or equipment, at a work station and at other specified positions nearby, in any environment which meets certain qualification requirements. A work station is occupied by an operator and may be located in open space, in the room where the source under
40、test operates, in a cab fixed to the source under test, 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 bystand
41、er positions. Emission sound pressure levels are determined 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
42、ISO 1120519are summarized in ISO 1120015. A method is given for determining a local environmental correction (subject to a specified limiting maximum value) to be applied to the measured sound pressure levels to exclude the effects of reflections from reflecting surfaces other than the plane on whic
43、h the source under test is placed. This correction is based upon the mean sound pressure level on a measurement surface, the sound pressure level measured at a specified position, and either an environmental correction or the equivalent absorption area of the test room. With the method specified in
44、this International Standard, results of accuracy grade 2 (engineering grade) or accuracy grade 3 (survey grade) are obtained. 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
45、test and for the choice of microphone positions for the work station and for other specified positions. One purpose of the 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 op
46、erating conditions. NOTE 2 The data obtained can also be used for the declaration and verification of emission sound pressure 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-ste
47、ady, fluctuating, isolated bursts of sound energy, etc.) defined in ISO 12001. The method specified in this International 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 eith
48、er a machine or a piece of equipment. BS EN ISO 11204:2010ISO 11204:2010(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. This International Standard is applicable to an indoor or outdoo
49、r environment with one or more reflecting planes present, meeting specified requirements. These requirements on the room are less strict than those of ISO 1120116, in particular regarding the acoustical quality of the environment. 1.4 Work station and other specified positions This International Standard is applicable to work stations and other specified positions where emission sound pressure levels are to be determined. Appropriate positions where measurements may be made include the following: a) work station locate
