1、BRITISH STANDARDBS EN ISO 15186-2:2010Acoustics Measurement of sound insulation in buildings and of building elements using sound intensity Part 2: Field measurementsICS 91.120.20g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g
2、54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58National forewordThis British Standard is the UK implementation of EN ISO 15186-2:2010. It is identical to ISO 15186-2:2003. It supersedes BS ISO 15186-2:2003, which is withdrawn.The UK participation in its preparation wa
3、s entrusted by Technical Committee EH/1, Acoustics, to Subcommittee EH/1/6, Building acoustics.A list of organizations represented on this subcommittee can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are respo
4、nsible for its correct application.Compliance with a British Standard cannot confer immunity from legal obligations.BS EN ISO 15186-2:2010This British Standard was published under the authority of the Standards Policy and Strategy Committee on 27 June 2003 BSI 2010Amendments/corrigenda issued since
5、publicationDate Comments 30 November 2010This corrigendum renumbers BS ISO 15186-2:2003 as BS EN ISO 15186-2:2010ISBN 978 0 580 71780 2 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 15186-2 September 2010 ICS 91.120.20 English Version Acoustics - Measurement of sound insulation in buildin
6、gs and of building elements using sound intensity - Part 2: Field measurements (ISO 15186-2:2003) Acoustique - Mesurage par intensit de lisolation acoustique des immeubles et des lments de construction - Partie 2: Mesurages in situ (ISO 15186-2:2003) Akustik - Bestimmung der Schalldmmung in Gebuden
7、und von Bauteilen aus Schallintensittsmessungen - Teil 2: Messungen am Bau (ISO 15186-2:2003) This European Standard was approved by CEN on 5 August 2010. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the st
8、atus 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 three official versions (English, French, German).
9、 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 of Austria, Belgium, Bulgaria, Croatia, Cyprus, Cz
10、ech 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. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EU
11、ROPEN 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 15186-2:2010: EBS EN ISO 15186-2:2010EN ISO 15186-2:2010 (E)Forewor
12、d The text of ISO 15186-2:2003 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 15186-2:2010 by Technical Committee CEN/TC 126 “Acoustic properties of building elements and of buildings” the s
13、ecretariat of which is held by AFNOR. 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 March 2011, and conflicting national standards shall be withdrawn at the latest by March 2011. Attention is dr
14、awn 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. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the follow
15、ing countries are bound to implement 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, Slovak
16、ia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Endorsement notice The text of ISO 15186-2:2003 has been approved by CEN as a EN ISO 15186-2:2010 without any modification. iiiContents Page Foreword iv 1 Scope 1 2 Normative references . 2 3 Terms and definitions. 2 4 Instrumentation
17、. 7 5 Test arrangement 8 6 Test procedure 9 7 Expression of results 14 8 Test report 15 Annex A (normative) Adaptation term Kc. 16 Annex B (informative) Estimated precision and bias of the method. 17 Annex C (informative) Measurement and the effect of flanking transmission. 21 Bibliography . 25 BS E
18、N ISO 15186-2:2010EN ISO 15186-2:2010 (E)iv Foreword 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 membe
19、r body interested in a 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 Elec
20、trotechnical Commission (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 adopt
21、ed by the technical committees 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 paten
22、t rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 15186-2 was prepared by Technical Committee ISO/TC 43, Acoustics, Subcommittee SC 2, Building acoustics. ISO 15186 consists of the following parts, under the general title Acoustics Measurement of sound in
23、sulation in buildings and of building elements using sound intensity: Part 1: Laboratory measurements Part 2: Field measurements Part 3: Laboratory measurements at low frequencies BS EN ISO 15186-2:2010EN ISO 15186-2:2010 (E)INTENRATIONAL TSANDADR IS-68151 O2:(3002E)1Acoustics Measurement of sound i
24、nsulation in buildings and of building elements using sound intensity Part 2: Field measurements 1 Scope 1.1 General This part of ISO 15186 specifies a sound intensity method to determine the in-situ sound insulation of walls, floors, doors, windows and small building elements. It is intended for me
25、asurements that have to be made in the presence of flanking transmission. It can be used to provide sound power data for diagnostic analysis of flanking transmission or to measure flanking sound insulation parameters. This part of ISO 15186 can be used by laboratories that could not satisfy the requ
26、irements of ISO 15186-1, which deals with laboratory measurements with no or little flanking transmission. ISO 15186-3 deals with measurements under laboratory conditions, at low frequencies. This part of ISO 15186 also describes the effect of flanking transmission on measurements made using the spe
27、cified method, and how intensity measurements can be used to compare the in-situ sound insulation of a building element with laboratory measurements where flanking has been suppressed (i.e. ISO 140-3), to rank the partial contributions for building elements, and to measure the flanking sound reducti
28、on index for one or more transmission paths (for validation of prediction models such as those given in EN 12354-1). This method gives values for airborne sound insulation, which are frequency dependent. They can be converted into a single number, characterizing the acoustic performance, by applicat
29、ion of ISO 717-1. 1.2 Precision The reproducibility of this intensity method is estimated to be equal to or better than that of the methods of ISO 140-10 and ISO 140-4, when measuring a single small and large building element, respectively. NOTE 1 If sound reduction measures made using this method a
30、re to be compared with those made using the conventional reverberation room method in various parts of ISO 140, then it will be necessary to introduce an adaptation term that reflects the bias between the test methods. This term is given in Annex A. NOTE 2 Some information about the accuracy for thi
31、s part of ISO 15186 and its relationship to the sound reduction index measured according to ISO 140-3 and ISO 140-4 is given in Annex B. NOTE 3 Flanking transmission is discussed in Annex C. BS EN ISO 15186-2:2010EN ISO 15186-2:2010 (E)2 2 Normative references The following referenced documents are
32、indispensable for the application 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 140-3:1995, Acoustics Measurement of sound insulation in buildings and of building e
33、lements Part 3: Laboratory measurements of airborne sound insulation of building elements ISO 140-4:1995, Acoustics Measurement of sound insulation in buildings and of building elements Part 4: Field measurements of airborne sound insulation between rooms ISO 140-10:1991, Acoustics Measurement of so
34、und insulation in buildings and of building elements Part 10: Laboratory measurement of airborne sound insulation of small building elements ISO 717-1:1996, Acoustics Rating of sound insulation in buildings and of building elements Part 1: Airborne sound insulation IEC 60942:1991, Sound calibrators
35、IEC 61043:1993, Instruments for the measurement of sound intensity 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. The subscripts are defined in Table 1. NOTE In this part of ISO 15186, quantities that represent the average over the measurement s
36、urface are explicitly identified using a bar over the measured quantity. For example, nI is the average normal intensity over the measurement surface, whereas the quantity, nI , without the bar, is the normal intensity obtained at a single point on the measurement surface. This explicit identificati
37、on of surface average quantities is intended to help the user quickly identify surface average quantities and to make the nomenclature consistent with the ISO 9614 series. This may make some definitions appear different from those in ISO 15186-1 and ISO 15186-3 although they are functionally identic
38、al. 3.1 average sound pressure level in a source room Lp1ten times the logarithm to the base 10 of the ratio of the space and time average of the sound pressure squared to the square of the reference sound pressure (20 Pa), the space average being taken over the entire room with the exception of tho
39、se parts where the direct radiation of a sound source or the near field of the boundaries (wall, window, etc.) is of significant influence NOTE 1 This quantity is given in decibels. NOTE 2 Adapted from the complete definition given in ISO 140-4. 3.2 apparent sound reduction index R ten times the log
40、arithm to the base 10 of the ratio of the sound power incident on the building element under test to the total sound power radiated into the receiving room by direct transmission and all flanking paths NOTE 1 Unless special efforts have been made to suppress flanking transmission (i.e. those defined
41、 in ISO 140-1), the measured sound power will contain a flanking component. Annex C provides more details. NOTE 2 The expression sound transmission loss, which is equivalent to sound reduction index is also in use. NOTE 3 Adapted from the complete definition given in ISO 140-4. BS EN ISO 15186-2:201
42、0EN ISO 15186-2:2010 (E)33.3 sound intensity IGtime-averaged rate of flow of sound energy per unit area in the direction of the local particle velocity, in watts per square metre, which is a vector quantity and is equal to 01() () dTI pt ut tT=GG(1) where p(t) is the instantaneous sound pressure at
43、a point, in pascals; ()utGis the instantaneous particle velocity at the same point, in metres per second; T is the averaging time, in seconds. NOTE This quantity is measured in watts per square metre. 3.4 normal sound intensity nI component of the sound intensity, in watts per square metre, in the d
44、irection normal to a measurement surface defined by the unit normal vector nGnI In=GG(2) where nGis the unit normal vector directed out of the volume enclosed by the measurement surface 3.5 normal sound intensity level nIL ten times the logarithm to the base 10 of the ratio of the unsigned value of
45、the normal sound intensity to the reference intensity I0as given by nn010 lgIILI= (3) where 12010I= W/m3.6 surface pressure-intensity indicator npIF difference, in decibels, between the sound pressure level, pL , and the normal sound intensity level, nIL , on the measurement surface, both being time
46、- and surface-averaged, given by nnpIpIF LL= (4) BS EN ISO 15186-2:2010EN ISO 15186-2:2010 (E)4 where 0,1MM1110 lg 10piiNLpiLSS=dB (5) and nMnM01110 lgiiNIiSILSI=dB (6) where ipL is the time- and surface-averaged sound pressure level measured on the ith sub-area; inI is the time- and surface-average
47、d signed normal intensity measured on the ith sub-area, and there are N sub-areas having a total area of SMMM1iNiSS=(7) NOTE In the limit of equal sub-areas, this indicator corresponds to the negative partial power indicator F3defined in ISO 9614-1 and signed pressure-intensity indicator,n,pIF defin
48、ed in ISO 9614-3. 3.7 pressure-residual intensity index pI0difference, in decibels, between the indicated sound pressure level, Lp, and the indicated sound intensity level, LI, when the intensity probe is placed and oriented in a sound field such that the sound intensity is zero ()0pI p ILL = (8) wh
49、ere ILis the level of the residual intensity and is given by 010 lgIILI= dB (9) NOTE This definition is consistent with that given in the ISO 9614 series. Details for determining pI0are given in IEC 61043. 3.8 apparent intensity sound reduction index RIindex, in decibels, for a building element that separates one source room and one receiving room, which also may be the outside, defined as 1nM00 6 10 lg 10 lgIp ISSRL LSS =+ + (10)where the first term relates to the incident s
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