1、BRITISH STANDARDBS EN ISO 10848-2:2006Incorporating corrigendum no. 1Acoustics Laboratory measurement of the flanking transmission of airborne and impact sound between adjoining rooms Part 2: Application to light elements when the junction has a small influenceThe European Standard EN ISO 10848-2:20
2、06 has the status of a British StandardICS 91.120.20g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58BS EN ISO 10848-2:2006This British Standard was
3、published under the authority of the Standards Policy and Strategy Committee on 28 April 2006 BSI 2007ISBN 0 580 48232 4National forewordThis British Standard was published by BSI. It is the UK implementation of EN ISO 10848-2:2006, incorporating corrigendum February 2007. It is identical with ISO 1
4、0848-2:2006, incorporating corrigendum February 2007. It supersedes BS EN 20140-9:1994 and BS EN ISO 140-12:2000 which are withdrawn.The UK participation in its preparation was entrusted by Technical Committee EH/1, Acoustics, to Subcommittee EH/1/6, Building acoustics.A list of organizations repres
5、ented 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 responsible for its correct application. Compliance with a British Standard cannot confer immunity from legal obligations.Amendmen
6、ts issued since publicationAmd. No. Date Comments17081Corrigendum No. 131 May 2007 Changes to EN ISO title page and foreword. Changes to ISO foreword.EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN ISO 10848-2April 2006ICS 91.120.20English VersionAcoustics - Laboratory measurement of the flankingt
7、ransmission of airborne and impact sound between adjoiningrooms - Part 2: Application to light elements when the junctionhas a small influence (ISO 10848-2:2006)Acoustique - Mesurage en laboratoire des transmissionslatrales du bruit arien et des bruits de choc entre picesadjacentes - Partie 2: Appli
8、cation aux lments lgerslorsque la jonction a une faible influence (ISO 10848-2:2006)Akustik - Messung der Flankenbertragung von Luftschallund Trittschall zwischen benachbarten Rumen inPrfstnden - Teil 2: Anwendung auf leichte Bauteile, wenndie Verbindung geringen Einfluss hat (ISO 10848-2:2006)This
9、European Standard was approved by CEN on 16 March 2006.CEN members are bound to comply with the CEN/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 c
10、oncerning such nationalstandards may be obtained on application to the Central Secretariat or to 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
11、 language and notified to the Central Secretariat has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg,
12、 Malta, Netherlands, Norway, Poland, Portugal, Romania,Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2006 CEN All rights of exp
13、loitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN ISO 10848-2:2006: ESupersedes EN 20140-9:1993 and EN ISO 140-12:2000Incorporating corrigendum February 2007Foreword This document (EN ISO 10848-2:2006) has been prepared by Technical Committee CEN/TC 126 “A
14、coustic properties of building elements and of buildings“, the secretariat of which is held by AFNOR, in collaboration with Technical Committee ISO/TC 43 “Acoustics“. This document This European Standard shall be given the status of a national standard, either by publication of an identical text or
15、by endorsement, at the latest by October 2006, and conflicting national standards shall be withdrawn at the latest by October 2006. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austri
16、a, Belgium, 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. EN ISO 10848-2:2006supers
17、edes: EN 20140-9:1993 and EN ISO 140-12:2000. Reference numberISO 10848-2:2006(E)INTERNATIONAL STANDARD ISO10848-2First edition2006-04-01Acoustics Laboratory measurement of the flanking transmission of airborne and impact sound between adjoining rooms Part 2: Application to light elements when the j
18、unction has a small influence Acoustique Mesurage en laboratoire des transmissions latrales du bruit arien et des bruits de choc entre des pices adjacentes Partie 2: Application aux lments lgers lorsque la jonction a une faible influence EN ISO 10848-2:2006ii iiiContents Page Foreword iv 1 Scope . 1
19、 2 Normative references . 1 3 Terms and definitions. 2 4 Measuring equipment. 3 5 Test arrangement 3 5.1 Requirements for the laboratory. 3 5.2 Installation of the test element 4 5.3 Verification procedure for a light flanking element that is structurally independent of a separating element . 7 5.4
20、Shielding technique used in the case of airborne excitation. 8 6 Test procedures 8 7 Precision 8 8 Expression of results . 8 9 Test report . 9 Annex A (informative) Measurement of Dn,f,Iwith intensity technique. 10 Bibliography . 11 EN ISO 10848-2:2006iv Foreword ISO (the International Organization
21、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 subject for which a technical committee has been established has t
22、he 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 (IEC) on all matters of electrotechnical standardization. Interna
23、tional 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 committees are circulated to the member bodies for voting. Publicatio
24、n 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 be held responsible for identifying any or all such patent rights
25、. ISO 10848-2 was prepared by the European Committee for Standardization (CEN) Technical Committee CEN/TC 126, Acoustic properties of building elements and of buildings, in collaboration with Technical Committee ISO/TC 43, Acoustics, Subcommittee SC 2, Building acoustics, in accordance with the Agre
26、ement on technical cooperation between ISO and CEN (Vienna Agreement). This first edition cancels and replaces ISO 140-9:1985 and ISO 140-12:2000. ISO 10848 consists of the following parts, under the general title Acoustics Laboratory measurement of the flanking transmission of airborne and impact s
27、ound between adjoining rooms: Part 1: Frame document Part 2: Application to light elements when the junction has a small influence Part 3: Application to light elements when the junction has a substantial influence The following part is under preparation: Part 4: Application to all other cases EN IS
28、O 10848-2:20061Acoustics Laboratory measurement of the flanking transmission of airborne and impact sound between adjoining rooms Part 2: Application to light elements when the junction has a small influence 1 Scope ISO 10848 specifies measurement methods to be performed in a laboratory test facilit
29、y in order to characterize the flanking transmission of one or several building components. The measured quantities may be used to compare different products, or to express a requirement, or as input data for prediction methods, such as EN 12354-1 and EN 12354-2. This part of ISO 10848 is specifical
30、ly referred to in ISO 10848-1:2006, 4.4, as being a supporting part of the frame document. This part of ISO 10848 applies to light elements such as suspended ceilings, access floors, light uninterrupted faades or floating floors. The transmission from one room to another can be simultaneous through
31、the test element and via the plenum, if any. With measurements according to this part of ISO 10848, the total sound transmission is measured, and it is not possible to separate the two kinds of transmission. The measured quantities Dn,fand Ln,fdepend on the actual dimensions of the test specimen. A
32、light element is defined in ISO 10848-1:2006, Clause 3. 2 Normative references The following referenced documents are 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 (inclu
33、ding any amendments) applies. ISO 140-2, Acoustics Measurement of sound insulation in buildings and of building elements Part 2: Determination, verification and application of precision data ISO 140-3:1995, Acoustics Measurement of sound insulation in buildings and of building elements Part 3: Labor
34、atory measurements of airborne sound insulation of building elements ISO 140-6:1998, Acoustics Measurement of sound insulation in buildings and of building elements Part 6: Laboratory measurements of impact sound insulation of floors ISO 354, Acoustics Measurement of sound absorption in a reverberat
35、ion room ISO 717-1, Acoustics Rating of sound insulation in buildings and of building elements Part 1: Airborne sound insulation EN ISO 10848-2:20062 ISO 717-2, Acoustics Rating of sound insulation in buildings and of building elements Part 2: Impact sound insulation ISO 10848-1:2006, Acoustics Labo
36、ratory measurement of the flanking transmission of airborne and impact sound between adjoining rooms Part 1: Frame document 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 normalized flanking level difference Dn,fdifference in the space and t
37、ime average sound pressure level produced in two rooms by one or more sound sources in one of them, when the transmission only occurs through a specified flanking path NOTE Dn,fis normalized to an equivalent sound absorption area (A0) in the receiving room and is expressed in decibels: n,f 1 2010 lg
38、 dBADLLA= (1) where L1is the average sound pressure level in the source room, in decibels; L2is the average sound pressure level in the receiving room, in decibels; A is the equivalent sound absorption area in the receiving room, in square metres; A0is the reference equivalent sound absorption area,
39、 in square metres; A0= 10 m2. ISO 10848-1:2006 3.2 normalized flanking impact sound pressure level Ln,fspace and time average sound pressure level in the receiving room produced by a standard tapping machine operating at different positions on a tested floor in the source room, when the transmission
40、 only occurs through a specified flanking path NOTE Ln,fis normalized to an equivalent sound absorption area (A0) in the receiving room and is expressed, in decibels: n,f 2010 lg dBALLA=+ (2) where L2is the average sound pressure level in the receiving room, in decibels; A is the equivalent sound ab
41、sorption area in the receiving room, in square metres; A0is the reference equivalent sound absorption area, in square metres; A0= 10 m2. ISO 10848-1:2006 3.3 plenum space whole of the void below an access floor or above a suspended ceiling in both rooms in the test facility EN ISO 10848-2:200634 Mea
42、suring equipment The equipment shall fulfil the requirements given in ISO 10848-1:2006, Clause 5. 5 Test arrangement 5.1 Requirements for the laboratory 5.1.1 General The general requirements for test specimens and test rooms given in ISO 10848-1:2006, Clause 6 shall be fulfilled. Further requiremen
43、ts for this part of ISO 10848 are stated in the following subclauses. Facilities for different kinds of test specimens are shown in Figures 1 to 4. 5.1.2 Construction of the test facility The rooms shall be on the same level, except for the faade testing where the rooms may be placed one on top of t
44、he other. For access floors and suspended ceilings, the ground plan of the test facility shall be rectangular. When the rooms are side by side, a vibration break shall be provided between the two rooms in order to ensure that structure-borne transmissions through the test facility are negligible (se
45、e Figure 1). When a plenum is used, the reverberation time of each room might be affected by sound transmission back from the other test room. In such cases, a suitable impervious plenum barrier shall be installed between the edge of the dividing wall and the bottom wall of the plenum during the rev
46、erberation time measurements. 5.1.3 Dimensions of the test facility The width of the test facility shall be 4,5 m 0,5 m and the internal height of the source and receiving rooms shall be at least 2,3 m. The volume V of each room shall be at least 50 m3. It is recommended that the dividing wall be po
47、sitioned such that the volumes of source and receiving room differ by at least 10 % when the test element is in position. The minimum depth in both rooms shall be 3,5 m. 5.1.4 Dividing wall The dividing wall divides the test facility into source and receiving room. The dividing wall shall be mounted
48、 in such a way that it is not loading the element. The gap between the dividing wall and the element shall be sealed with a flexible material. The thickness of the wall shall be less than 200 mm or tapered to 200 mm (see for example Figure 1). The tapering between the widest part of the wall and the
49、 element shall be achieved by means of an angle not exceeding 45. The construction of the dividing wall shall be such that Dn,f,max is 10 dB higher than the Dn,f of any element which is likely to be tested. In cases where there is a plenum, for checking the airborne sound insulation of the facility, a suitable plenum barrier of construction similar to the dividing wall may be installed between the edge of the dividing wall and the wall of the test facility, without the element. In cases where there is no ple
