1、December 2010 Translation by DIN-Sprachendienst.English price group 14No part of this translation 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).I
2、CS 91.120.20!$llg“1737368www.din.deDDIN EN ISO 15186-2Acoustics Measurement of sound insulation in buildings and of building elementsusing sound intensity Part 2: Field measurements (ISO 15186-2:2003)English translation of DIN EN ISO 15186-2:2010-12Akustik Bestimmung der Schalldmmung in Gebuden und
3、von Bauteilen ausSchallintensittsmessungen Teil 2: Messungen am Bau (ISO 15186-2:2003)Englische bersetzung von DIN EN ISO 15186-2:2010-12Acoustique Mesurage par intensit de lisolation acoustique des immeubles et des lments deconstruction Partie 2: Mesurages in situ (ISO 15186-2:2003)Traduction angla
4、ise de DIN EN ISO 15186-2:2010-12www.beuth.deDocument comprises pagesIn case of doubt, the German-language original shall be considered authoritative.3012.10 DIN EN ISO 15186-2:2010-12 2 A comma is used as the decimal marker. National foreword This standard has been prepared by Technical Committee I
5、SO/TC 43/SC 2 “Building acoustics” (Secretariat: DIN, Germany) in collaboration with Technical Committee CEN/TC 126 “Acoustic properties of building elements and of buildings” (Secretariat: AFNOR, France). The responsible German body involved in its preparation was the Normenausschuss Materialprfung
6、 (Materials Testing Standards Committee), Working Committee NA 062-02-31 AA Schalldmmung und Schall-absorption, Messung und Bewertung. The DIN Standards corresponding to the International Standards referred to in this document are as follows: ISO 140-3 DIN EN ISO 140-3 ISO 140-4 DIN EN ISO 140-4 ISO
7、 140-10 DIN EN 20140-10 ISO 717-1 DIN EN ISO 717-1 IEC 60942 DIN EN 60942 IEC 61043 DIN EN 61043 National Annex NA (informative) Bibliography DIN EN 20140-10, Acoustics Measurement of sound insulation in buildings and of building elements Part 10: Laboratory measurement of airborne sound insulation
8、of small building elements DIN EN 60942, Electroacoustics Sound calibrators DIN EN 61043, Electroacoustics Instruments for the measurement of sound intensity Measurement with pairs of pressure sensing microphones DIN EN ISO 140-3, Acoustics Measurement of sound insulation in buildings and of buildin
9、g elements Part 3: Laboratory measurements of airborne sound insulation of building elements DIN EN ISO 140-4, Acoustics Measurement of sound insulation in buildings and of building elements Part 4: Field measurement of airborne sound insulation between rooms DIN EN ISO 717-1, Acoustics Rating of so
10、und insulation in buildings and of building elements Part 1: Airborne sound insulation EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 15186-2 September 2010 ICS 91.120.20 English Version Acoustics - Measurement of sound insulation in buildings and of building elements using sound intensity
11、 - 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 und von Bauteilen aus Schallintensittsmessungen -
12、 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 status of a national standard without any alteratio
13、n. 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). A version in any other language made by translat
14、ion 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, Czech Republic, Denmark, Estonia, Finland, France,
15、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 EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NOR
16、MUNG 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: EContents Page Foreword3 1 Scope 4 2 Normative references 5 3 Terms and definitions .5 4 Instrumentati
17、on10 5 Test arrangement.11 6 Test procedure.12 7 Expression of results 17 8 Test report 18 Annex A (normative) Adaptation term Kc.19 Annex B (informative) Estimated precision and bias of the method .20 Annex C (informative) Measurement and the effect of flanking transmission24 Bibliography 28 DIN EN
18、 ISO 15186-2:2010-12 EN ISO 15186-2:2010 (E) 2 Foreword 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 p
19、roperties of building elements and of buildings” the secretariat 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
20、withdrawn at the latest by March 2011. 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. According to the CEN/CENELEC Internal Regulatio
21、ns, the national standards organizations of the following 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,
22、Netherlands, Norway, Poland, Portugal, Romania, Slovakia, 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. DIN EN ISO 15186-2:2010-12 EN ISO 15186-2:2010 (E) 3 1 Sc
23、ope 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 measurements that have to be made in the presence of flanking transmission. It can be used to provide s
24、ound 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 requirements of ISO 15186-1, which deals with laboratory measurements with no or little flanking transmis
25、sion. 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 specified method, and how intensity measurements can be used to compare the in-situ sound insulation of
26、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 reduction index for one or more transmission paths (for validation of prediction models such as those given
27、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 application of ISO 717-1. 1.2 Precision The reproducibility of this intensity method is estimated to be equal
28、 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 are to be compared with those made using the conventional reverberation room method in various parts o
29、f 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 this part of ISO 15186 and its relationship to the sound reduction index measured according to ISO 140-3
30、 and ISO 140-4 is given in Annex B. NOTE 3 Flanking transmission is discussed in Annex C. DIN EN ISO 15186-2:2010-12 EN ISO 15186-2:2010 (E) 4 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cite
31、d 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 elements Part 3: Laboratory measurements of airborne sound insulation of building elements ISO 1
32、40-4:1995, 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 sound insulation in buildings and of building elements Part 10: Laboratory measurement of airborn
33、e 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 IEC 61043:1993, Instruments for the measurement of sound intensity 3 Terms and definitions For
34、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 surface are explicitly identified using a bar over the measured quantity. For example, nI is the
35、 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 identification of surface average quantities is intended to help the user quickly identify surface average
36、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 identical. 3.1 average sound pressure level in a source room Lp1ten times the logarithm to the base 10
37、 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 those parts where the direct radiation of a sound source or the near field of the boundaries (wall
38、, 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 logarithm to the base 10 of the ratio of the sound power incident on the building element under te
39、st 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 in ISO 140-1), the measured sound power will contain a flanking component. Annex C provides mo
40、re 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. DIN EN ISO 15186-2:2010-12 EN ISO 15186-2:2010 (E) 5 3.3 sound intensity IGtime-averaged rate of flow of sound energ
41、y 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 a point, in pascals; ()utGis the instantaneous particle velocity at the same point, in m
42、etres 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 direction normal to a measurement surface defined by the unit normal vector nGnI In=GG(2)
43、 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 the normal sound intensity to the reference intensity I0as given by nn010 lgIILI= (3) wh
44、ere 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- and surface-averaged, given by nnpIpIF LL= (4) DIN EN ISO 15186-2:2010-12 EN ISO 15186
45、-2:2010 (E) 6 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-averaged signed normal intensity measured on the ith sub-area, and there are N sub-areas
46、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 defined in ISO 9614-3. 3.7 pressure-residual intensity index pI0difference, in decibels
47、, 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) where ILis the level of the residual intensity and is given by 010 lgIILI= dB (9) NO
48、TE 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,
49、defined as 1nM00 6 10 lg 10 lgIp ISSRL LSS =+ + (10)where the first term relates to the incident sound power in the source room and the second term relates to the sound power radiated from the building element(s) contained within the measurement volume in the receiving room, and Lp1is the average sound pressure level in the source room; S is the area of the separating building element under test or, in the case of staggered or stepped rooms,
