1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN ISO 717-2:2013Acoustics Rating of sound insulation in buildings and of building elementsPart 2: Impact sound insulationBS EN ISO 717-2:2013 BRITISH STANDARDNational forewor
2、dThis British Standard is the UK implementation of EN ISO 717-2:2013.It is identical to ISO 717-2:2013. It supersedes BS EN ISO 717-2:1997 which is withdrawn.The UK participation in its preparation was entrusted to Technical Committee EH/1/6, Building acoustics.A list of organizations represented on
3、 this committee 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. The British Standards Institution 2013. Published by BSI Standards Limited 2013ISBN 978 0 580 74027
4、5 ICS 91.120.20 Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 March 2013.Amendments issued since publicationDate T e x t a f f e c t e dEUROPEAN STANDARD NO
5、RME EUROPENNE EUROPISCHE NORM EN ISO 717-2 March 2013 ICS 91.120.20 Supersedes EN ISO 717-2:1996English Version Acoustics - Rating of sound insulation in buildings and of building elements - Part 2: Impact sound insulation (ISO 717-2:2013) Acoustique - valuation de lisolement acoustique des immeuble
6、s et des lments de construction - Partie 2: Protection contre le bruit de choc (ISO 717-2:2013) Akustik - Bewertung der Schalldmmung in Gebuden und von Bauteilen - Teil 2: Trittschalldmmung (ISO 717-2:2013) This European Standard was approved by CEN on 5 January 2013. CEN members are bound to comply
7、 with the CEN/CENELEC Internal Regulations which 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-CENELEC M
8、anagement 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 translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same
9、 status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg,
10、Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2013 CEN All rig
11、hts of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 717-2:2013: EBS EN ISO 717-2:2013EN ISO 717-2:2013 (E) 3 Foreword This document (EN ISO 717-2:2013) has been prepared by Technical Committee ISO/TC 43 “Acoustics” incollaboration with Techni
12、cal Committee CEN/TC 126 “Acoustic properties of building elements and ofbuildings” 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 identicaltext or by endorsement, at the latest by September 2013, and co
13、nflicting national standards shall bewithdrawn at the latest by September 2013. Attention is drawn to the possibility that some of the elements of this document may be the subject of patentrights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This do
14、cument supersedes EN ISO 717-2:1996. According to the CEN-CENELEC Internal Regulations, the national standards organizations of the followingcountries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, CzechRepublic, Denmark, Estonia, Finland, Former Yugoslav
15、 Republic of Macedonia, France, Germany, Greece,Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Endorsement notice The text of ISO 717-2:2013 has been
16、 approved by CEN as EN ISO 717-2:2013 without any modification. BS EN ISO 717-2:2013ISO 717-2:2013(E) ISO 2013 All rights reserved iiiContents PageForeword ivIntroduction v1 Scope . 12 Normative references 13 Terms and definitions . 24 Procedure for evaluating single-number quantities for impact sou
17、nd insulation rating 34.1 General . 34.2 Reference values 34.3 Method of comparison . 34.4 Statement of results 45 Procedure for evaluating the weighted reduction in impact sound pressure level by floor coverings on bare heavy floors 55.1 General . 55.2 Reference floor 65.3 Calculation 65.4 Statemen
18、t of results 76 Procedure for evaluating the weighted reduction in impact sound pressure level by floor coverings on lightweight floors . 76.1 General . 76.2 Reference curves for the reference lightweight floors used to calculate Lt,w.86.3 Calculation 86.4 Statement of results 8Annex A (informative)
19、 Additional weighting procedure . 9Annex B (informative) Procedure for evaluating the equivalent weighted normalized impact sound pressure level of bare heavy floors 11Annex C (informative) Examples of the evaluation of a single-number quantity .13Bibliography .17BS EN ISO 717-2:2013ISO 717-2:2013(E
20、)ForewordISO (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 subject for which a t
21、echnical 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 (IEC) on all matters
22、 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 committees are circulated
23、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 be held responsible for
24、 identifying any or all such patent rights.ISO 717-2 was prepared by Technical Committee ISO/TC 43, Acoustics, Subcommittee SC 2, Building acoustics.This third edition cancels and replaces the second edition (ISO 717-2:1996), which has been technically revised. It also incorporates the Amendment ISO
25、 717-2:1996/Amd. 1:2006.The purpose of this revised version is to: allow weighting steps of 0,1 dB to be used for expression of uncertainty; update references.ISO 717 consists of the following parts, under the general title Acoustics Rating of sound insulation in buildings and of building elements:
26、Part 1: Airborne sound insulation Part 2: Impact sound insulationiv ISO 2013 All rights reservedBS EN ISO 717-2:2013ISO 717-2:2013(E)IntroductionMethods of measurement of impact sound insulation in buildings and of building elements have been standardized in ISO 10140-3 and ISO 140-7. These methods
27、give values for the impact sound insulation which are frequency dependent. The purpose of this part of ISO 717 is to standardize a method whereby the frequency-dependent values of impact sound insulation can be converted into a single number characterizing the acoustical performance.The method has b
28、een widely used since 1968. However, since there is some evidence that it could be improved, a spectrum adaptation term is added and it is recommended that experience be gathered with this.References to standards which provide data for single-number evaluation are meant to be examples and not comple
29、te surveys. ISO 2013 All rights reserved vBS EN ISO 717-2:2013BS EN ISO 717-2:2013Acoustics Rating of sound insulation in buildings and of building elements Part 2: Impact sound insulation1 ScopeThis part of ISO 717:a) defines single-number quantities for impact sound insulation in buildings and of
30、floors;b) gives rules for determining these quantities from the results of measurements carried out in one-third-octave bands in accordance with ISO 10140-3 and ISO 140-7, and in octave bands in accord-ance with that option in ISO 140-7 for field measurements only;c) defines single-number quantities
31、 for the impact sound reduction of floor coverings and floating floors calculated from the results of measurements carried out in accordance with ISO 10140-3;d) specifies a procedure for evaluating the weighted reduction in impact sound pressure level by floor coverings on lightweight floors.The sin
32、gle-number quantities in accordance with this part of ISO 717 are intended for rating impact sound insulation and for simplifying the formulation of acoustical requirements in building codes. An additional single-number evaluation in steps of 0,1 dB is indicated for the expression of uncertainty (ex
33、cept for spectrum adaptation terms).The required numerical values of the single-number quantities are specified according to varying needs.The rating of results from measurements carried out over an enlarged frequency range is described in Annex A.A method for obtaining single-number quantities for
34、bare heavy floors according to their performance in combination with floor coverings is described in Annex B.An example of the calculation of a single-number quantity is given in Annex C.2 Normative referencesThe following documents, in whole or in part, are normatively referenced in this document a
35、nd are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.ISO 140-7:1998, Acoustics Measurement of sound insulation in buildings and of building elements Par
36、t 7: Field measurements of impact sound insulation of floorsISO 10140-1, Acoustics Laboratory measurement of sound insulation of building elements Part 1: Application rules for specific productsISO 10140-3:2010, Acoustics Laboratory measurement of sound insulation of building elements Part 3: Measur
37、ement of impact sound insulationISO 10140-5, Acoustics Laboratory measurement of sound insulation of building elements Part 5: Requirements for test facilities and equipmentINTERNATIONAL STANDARD ISO 717-2:2013(E) ISO 2013 All rights reserved 1BS EN ISO 717-2:2013ISO 717-2:2013(E)3 Terms and definit
38、ionsFor the purposes of this document, the following terms and definitions apply.3.1single-number quantity for impact sound insulation rating derived from one-third-octave band measurementsvalue of the relevant reference curve at 500 Hz after shifting it in accordance with the method specified in th
39、is part of ISO 717Note 1 to entry: This quantity is expressed in decibels.3.2single-number quantity for impact sound insulation rating derived from octave band measurementsvalue of the relevant reference curve at 500 Hz after shifting it in accordance with the method specified in this part of ISO 71
40、7, reduced by 5 dBNote 1 to entry: Terms and symbols for the single-number quantity used depend on the type of measurement. Examples are listed in Table 1 for impact sound insulation properties of building elements and in Table 2 for impact sound insulation between rooms in buildings.Note 2 to entry
41、: In order to distinguish clearly between values with and without flanking transmission, primed symbols (e.g. Ln) are used to denote values obtained with flanking transmission.Note 3 to entry: This quantity is expressed in decibels.3.3weighted reduction in impact sound pressure leveldifference betwe
42、en the weighted normalized impact sound pressure levels derived with a bare heavy reference floor or with a lightweight reference floor without and with a floor covering, obtained in accordance with the method specified in this part of ISO 717Note 1 to entry: The quantity derived with a bare heavy r
43、eference floor is denoted by Lwand is expressed in decibels.Note 2 to entry: The quantity derived with a bare heavy reference floor is denoted by Lt,wand is expressed in decibels. According to the type of reference floor it may be denoted by Lt1,w, Lt2,w, Lt3,w.3.4spectrum adaptation termCIvalue, in
44、 decibels, to be added to the single-number quantity to take account of the unweighted impact sound level, thereby representing the characteristics of typical walking noise spectra3.5equivalent weighted normalized impact sound pressure level of a bare heavy floorsum of the weighted normalized impact
45、 sound pressure level of the bare floor under test with the reference floor covering and the weighted reduction in impact sound pressure level of the reference floor covering obtained in accordance with the method specified in this part of ISO 717Note 1 to entry: This quantity is denoted by Ln,eq,0,
46、wand is expressed in decibels.Table 1 Single-number quantities of impact sound insulation properties of floorsDerived from one-third-octave band valuesDefined inSingle-number quantity Term and symbolWeighted normalized impact sound pressure level, Ln,wNormalized impact sound pres-sure level, LnISO 1
47、0140-3:2010 Formula (1)2 ISO 2013 All rights reservedBS EN ISO 717-2:2013ISO 717-2:2013(E)Table 2 Single-number quantities of impact sound insulation between rooms in buildingsDerived from one-third-octave band values or octave-band valuesDefined inSingle-number quantity Term and symbolWeighted norm
48、alized impact sound pressure level, Ln,wNormalized impact sound pressure level, Ln ISO 140-7:1998 Formula (2)Weighted standardized impact sound pressure level, LTn,wStandardized impact sound pressure level, LTn ISO 140-7:1998 Formula (3)4 Procedure for evaluating single-number quantities for impact
49、sound insulation rating4.1 GeneralThe values obtained in accordance with ISO 10140-3 and ISO 140-7 are compared with reference values (see 4.2) at the frequencies of measurement within the range 100 Hz to 3 150 Hz for measurements in one-third-octave bands or 125 Hz to 2 000 Hz for measurements in octave bands.The comparison shall be carried out in accordance with 4.3.4.2 Reference valuesThe set of reference values used for comparison with measurement results shall be as given in Table 3. The reference curves are sho
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