1、BSI Standards PublicationBS EN ISO 16251-1:2014Acoustics Laboratorymeasurement of the reductionof transmitted impact noise byfloor coverings on a small floormock-upPart 1: Heavyweight compact floorBS EN ISO 16251-1:2014 BRITISH STANDARDNational forewordThis British Standard is the UK implementation
2、of EN ISO16251-1:2014.The UK participation in its preparation was entrusted to TechnicalCommittee EH/1/6, Building acoustics.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
3、contract. Users are responsible for its correctapplication. The British Standards Institution 2014. Published by BSI StandardsLimited 2014ISBN 978 0 580 73944 6ICS 91.120.20Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the a
4、uthority of theStandards Policy and Strategy Committee on 31 August 2014.Amendments issued since publicationDate Text affectedEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 16251-1 August 2014 ICS 91.120.20 English Version Acoustics - Laboratory measurement of the reduction of transmitted
5、impact noise by floor coverings on a small floor mock-up - Part 1: Heavyweight compact floor (ISO 16251-1:2014) Acoustique - Mesurage en laboratoire de la rduction de la transmission du bruit de choc par les revtements de sol sur un plancher normalis de dimensions rduites - Partie 1: Plancher lourd
6、(ISO 16251-1:2014) Akustik - Labormessung der Trittschallminderung von Deckenauflagen auf kleinflchigen Prfdeckennachbildungen - Teil 1: Schwere Massivdecke (ISO 16251-1:2014) This European Standard was approved by CEN on 28 May 2014. CEN members are bound to comply with the CEN/CENELEC Internal Reg
7、ulations 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 Management Centre or to any CEN mem
8、ber. 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 status as the official versions.
9、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, Malta, Netherlands, Norway, Poland
10、, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2014 CEN All rights of exploitation in
11、 any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 16251-1:2014 EBS EN ISO 16251-1:2014EN ISO 16251-1:2014 (E) 3 Foreword This document (EN ISO 16251-1:2014) has been prepared by Technical Committee ISO/TC 43 “Acoustics” in collaboration with Technical Committee
12、CEN/TC 126 “Acoustic properties 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 February 2015, and conflicting nat
13、ional standards shall be withdrawn at the latest by February 2015. 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 CE
14、N-CENELEC Internal Regulations, 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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hunga
15、ry, 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 16251-1:2014 has been approved by CEN as EN ISO 16251-1:2014 without an
16、y modification. BS EN ISO 16251-1:2014ISO 16251-1:2014(E) ISO 2014 All rights reserved iiiContents PageForeword ivIntroduction v1 Scope . 12 Normative references 13 Terms and definitions . 14 Principle 25 Equipment . 25.1 Test setup . 25.2 Instruments . 36 Test procedure 36.1 Installing the specimen
17、s . 36.2 Placement of tapping machine and accelerometers . 36.3 Frequency range 36.4 Measurement 46.5 Evaluation of results . 47 Uncertainty . 58 Expression of results 59 Test report . 5Annex A (normative) Test setup 7Annex B (informative) Design of presentation of results 8Bibliography .10BS EN ISO
18、 16251-1:2014ISO 16251-1:2014(E)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 intere
19、sted 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 Electrotechnical
20、Commission (IEC) on all matters of electrotechnical standardization.The procedures used to develop this document and those intended for its further maintenance are described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the different types of ISO documen
21、ts should be noted. This document was drafted in accordance with the editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).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
22、for identifying any or all such patent rights. Details of any patent rights identified during the development of the document will be in the Introduction and/or on the ISO list of patent declarations received (see www.iso.org/patents).Any trade name used in this document is information given for the
23、 convenience of users and does not constitute an endorsement.For an explanation on the meaning of ISO specific terms and expressions related to conformity assessment, as well as information about ISOs adherence to the WTO principles in the Technical Barriers to Trade (TBT) see the following URL: For
24、eword - Supplementary informationThe committee responsible for this document is ISO/TC 43, Acoustics, Subcommittee SC 2, Building acoustics.ISO 16251 consists of the following parts, under the general title Acoustics Laboratory measurement of the reduction of transmitted impact noise by floor coveri
25、ngs on a small floor mock-up: Part 1: Heavyweight compact flooriv ISO 2014 All rights reservedBS EN ISO 16251-1:2014ISO 16251-1:2014(E)IntroductionThe improvement of impact sound reduction is the main quantity for describing the acoustic behaviour of floor coverings. Its determination is described i
26、n the ISO 101404series and requires the use of a special test facility. This facility consists of two rooms (the lower one of at least 50 m3), separated by an approximately 14 cm thick concrete slab or a special timber joist floor. Manufacturers of floor coverings see the advantage of having their o
27、wn test facilities, but the investment often is not affordable for small- and medium-sized enterprises. This part of ISO 16251 aims to reduce the effort for the determination of the impact sound reduction. A standardized test method is provided, which yields results comparable to those gained with t
28、he ISO 10140 series4. ISO 2014 All rights reserved vBS EN ISO 16251-1:2014BS EN ISO 16251-1:2014Acoustics Laboratory measurement of the reduction of transmitted impact noise by floor coverings on a small floor mock-up Part 1: Heavyweight compact floor1 ScopeThis part of ISO 16251 specifies a laborat
29、ory measurement method to determine the improvement of impact sound insulation by a floor covering when laid on a standard concrete floor mock-up and excited by a standard tapping machine. The method is restricted to soft, flexible floor coverings, which transmit impact sound mainly “locally” into t
30、he floor, i.e. through the area close to the points of excitation, so that the size of the flooring specimen does not have an influence on the results. Examples of such floor coverings are carpets, PVC, and linoleum. These floor coverings correspond to ISO 10140-1:20105, Annex H, category I.The resu
31、lts only provide information about the noise radiated. A subjective classification of the quality of the floor coverings is not intended.The method is kept as close as possible to the ISO 101404series and yields the same results within the range of uncertainty and within the range of application. In
32、 the case of difference with ISO 10140, the result of the ISO 10140 measurement shall be used.This part of ISO 16251 provides the measurement method. Product test codes can contain further requirements concerning the specimens, such as temperature range, the number of test specimens or special mount
33、ing conditions.NOTE If non-soft, non-flexible floorings are tested, e.g. those with a laminated structure, increased deviations from the results of the ISO 101404series method may occur due to the dependency on the specimen size.2 Normative referencesThe following documents, in whole or in part, are
34、 normatively referenced in this document and 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 717-2, Acoustics Rating of sound insulation in buildi
35、ngs and of building elements Part 2: Impact sound insulationISO 16063 (all parts), Methods for the calibration of vibration and shock transducers3 Terms and definitionsFor the purposes of this document, the following terms and definitions apply.INTERNATIONAL STANDARD ISO 16251-1:2014(E) ISO 2014 All
36、 rights reserved 1BS EN ISO 16251-1:2014ISO 16251-1:2014(E)3.1vibratory acceleration levelLavalue given by Formula (1):LTat taaT=1012020lg()mddBm(1)where Tmis the integration time, in seconds; a is the acceleration, in metres per second squared; a0is the reference acceleration (1 106m/s2).3.2improve
37、ment of impact sound insulationLreduction of the vibratory acceleration level resulting from installation of the test floor covering for a given one-third octave bandNote 1 to entry: The improvement of impact sound insulation is expressed in decibels.3.3locally reacting floor coveringsfloor covering
38、s, where the impact is transmitted into the bearing floor predominantly through the area directly excited by the hammers of the tapping machineNote 1 to entry: Thus the improvement of impact sound insulation does not depend on the size of the specimen.4 PrincipleThe method in this part of ISO 16251
39、is directly based on the ISO 101404series, where the test setup consists of two rooms above each other, separated by a standard concrete floor, on which the flooring to be tested is applied. In this part of ISO 16251, the two rooms are removed and the concrete floor is replaced by a small concrete p
40、late of similar thickness (see Annex A). This plate is structurally decoupled from the surroundings by elastic suspensions. As in the ISO 101404series, a standard tapping machine is used as an impact source and two sound levels “in the lower room” are determined, once with and once without the speci
41、men on the plate. However, instead of the sound pressure level in the lower room, the structure-borne sound level at the lower surface of the concrete plate is determined. It is assumed that for locally reacting floor coverings the structure-borne sound level difference equals the impact sound reduc
42、tion according to the ISO 101404series.In this part of ISO 16251, structure-borne sound levels are expressed in terms of acceleration levels. Nevertheless, the same procedures can be applied when measuring velocity or displacement levels instead.5 Equipment5.1 Test setupThe setup is shown in Annex A
43、. It consists of a concrete slab, which is softly supported at its four corners. The area of each elastic support shall not exceed 10 cm 10 cm. The vertical resonance of the concrete slab on the elastic bearings shall lie below 20 Hz.The size of the slab shall be (120 5) cm (80 5) cm (20 1) cm. It s
44、hall be homogeneous and of uniform thickness. Ensure that the surface of the slab is flat to 1 mm in a horizontal line from edge to edge, and sufficiently hard to endure the impacts of the tapping machine. A screed is allowed to provide sufficient flatness.2 ISO 2014 All rights reservedBS EN ISO 162
45、51-1:2014ISO 16251-1:2014(E)5.2 InstrumentsThe vibratory acceleration is measured by one or more accelerometers. The signals generated by the accelerometers shall be amplified, filtered in third-octave bands, and indicated as r.m.s. values. The structure-borne noise shall be measured with a sound le
46、vel meter or an equivalent measurement system which has been declared to be in compliance with the requirements of at least IEC 61672-18, class 1 with the microphone replaced by the accelerometer. Verify that the filters have been declared to be in accordance with IEC 612607, class 1.Ensure that the
47、 tapping machine used has been declared to meet the requirements specified in ISO 10140-56.The vibration calibration shall comply with the requirements of ISO 16063 (all parts).As the acceleration signals at least on the bare concrete plate consist of extremely short pulses, some measurement chains
48、may produce rather obviously erroneous results, although meeting all specifications mentioned in the preceding for accelerometers, sound level meters, and filters. Before using a measurement chain for the first time, ensure that the chain is functioning correctly, e.g. by a comparison with measureme
49、nts according to ISO 101404.6 Test procedure6.1 Installing the specimensThe test specimens shall be big enough to place the whole tapping machine on it, but not larger than the upper surface of the concrete slab. The manufacturers installation instructions shall be applied, paying attention especially to the edges of the specimens to avoid lifting. If floor coverings require an adhesive and/or a primer, it is necessary to meet a drying time to achieve the products hardening.6.2 Placement of tapping machi
