1、November 2014Translation by DIN-Sprachendienst.English price group 10No 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).IC
2、S 91.120.20!%$“2270190www.din.deDDIN EN ISO 16251-1Acoustics Laboratory measurement of the reduction of transmitted impact noiseby floor coverings on a small floor mock-up Part 1: Heavyweight compact floor (ISO 16251-1:2014);English version EN ISO 16251-1:2014,English translation of DIN EN ISO 16251
3、-1:2014-11Akustik Labormessung der Trittschallminderung von Deckenauflagen auf kleinflchigenPrfdeckennachbildungen Teil 1: Schwere Massivdecke (ISO 16251-1:2014);Englische Fassung EN ISO 16251-1:2014,Englische bersetzung von DIN EN ISO 16251-1:2014-11Acoustique Mesurage en laboratoire de la rduction
4、 de la transmission du bruit de choc par lesrevtements de sol sur un plancher normalis de dimensions rduites Partie 1: Plancher lourd (ISO 16251-1:2014);Version anglaise EN ISO 16251-1:2014,Traduction anglaise de DIN EN ISO 16251-1:2014-11www.beuth.deIn case of doubt, the German-language original sh
5、all be considered authoritative.Document comprises 16 pages10.14 DIN EN ISO 16251-1:2014-11 2 A comma is used as the decimal marker. National foreword This document (EN ISO 16251-1:2014) has been prepared by Technical Committee ISO/TC 43 “Acoustics”, Subcommittee SC 2 “Building acoustics” (Secretari
6、at: 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 DIN-Normenausschuss Materialprfung (DIN Standards Committee Materials Testi
7、ng), Working Committee NA 062-02-31 AA Schalldmmung und Schallabsorption, Messung und Bewertung. The DIN Standards corresponding to the International Standards referred to in this document are as follows: ISO 266 DIN EN ISO 266 ISO 717-2 DIN EN ISO 717-2 ISO 5348 DIN ISO 5348 ISO 10140 DIN EN ISO 10
8、140 ISO 12999-1 DIN EN ISO 12999-1 ISO 16063 DIN ISO 16063 IEC 61260 DIN EN 61260 IEC 61672-1 DIN EN 61672-1 National Annex NA (informative) Bibliography DIN EN 61260, Electroacoustics Octave-band and fractional-octave-band filters DIN EN 61672-1, Electroacoustics Sound level meters Part 1: Specific
9、ations DIN EN ISO 266, Acoustic Preferred frequencies DIN EN ISO 717-2, Acoustics Rating of sound insulation in buildings and of building elements Part 2: Impact sound insulation DIN EN ISO 10140 (all parts), Acoustics Laboratory measurement of sound insulation of building elements DIN EN ISO 12999-
10、1, Determination and application of measurement uncertainties in building acoustics Part 1: Sound insulation DIN ISO 5348, Mechanical vibration and shock Mechanical mounting of accelerometers DIN ISO 16063, Methods for the calibration of vibration and shock transducers EN ISO 16251-1August 2014 ICS
11、91.120.20 English Version Acoustics - Laboratory measurement of the reduction oftransmitted impact noise by floor coverings on a small floormock-up - Part 1: Heavyweight compact floor(ISO 16251-1:2014)Acoustique - Mesurage en laboratoire de la rduction de latransmission du bruit de choc par les revt
12、ements de solsur un plancher normalis de dimensions rduites -Partie 1: Plancher lourd (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
13、CEN on 28 May 2014. 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 alteration. Up-to-date lists and bibliographical references concerning such national standards
14、may be obtained on application to the CEN-CENELEC 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 translation under the responsibility of a CEN member into its own language and notifie
15、d to the CEN-CENELEC 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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Icela
16、nd, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey andUnited Kingdom. CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2014 CEN All rights of exploitation in any form and by
17、any means reserved worldwide for CEN national Members. Ref. No. EN ISO 16251-1:2014 EEUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGEUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORM2Contents Page Foreword . 3 Introduction . 4 1 Scope . 5 2 Normative r
18、eferences. 5 3 Terms and definitions 5 4 Principle 6 5 Equipment . 6 5.1 Test setup . 6 5.2 Instruments . 7 6 Test procedure . 7 6.1 Installing the specimens . 7 6.2 Placement of tapping machine and accelerometers 7 6.3 Frequency range 7 6.4 Measurement 8 6.5 Evaluation of results 8 7 Uncertainty 9
19、8 Expression of results . 9 9 Test report . 9 Annex A (normative) Test setup . 11 Annex B (informative) Design of presentation of results 12 Bibliography 14 DIN EN ISO 16251-1:2014-11 EN ISO 16251-1:2014 (E) ForewordThis document (EN ISO 16251-1:2014) has been prepared by Technical Committee ISO/TC
20、43 “Acoustics” in collaboration with Technical Committee 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 endorse
21、ment, at the latest by February 2015, and conflicting national 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 ident
22、ifying any or all such patent rights. According to the CEN-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 Yugos
23、lav 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 16251-1:2014 h
24、as been approved by CEN as EN ISO 16251-1:2014 without any modification. EN ISO 16251 consists of the following parts, under the general title Acoustics Laboratory measurement of the reduction of transmitted impact noise by floor coverings on a small floor mock-up: Part 1: Heavyweight compact floor
25、3DIN EN ISO 16251-1:2014-11EN ISO 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 in the ISO 101404series and requires the use of a special test facility. This facility
26、 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 own test facilities, but the investment often is not affordable for small- and medium-
27、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 the ISO 10140 series4.4DIN EN ISO 16251-1:2014-11 EN ISO 16251-1:2014 (E) 1 ScopeThis
28、part of ISO 16251 specifies a laboratory 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
29、 impact sound mainly “locally” into the 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-
30、1:20105, Annex H, category I.The results 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 an
31、d within the range of application. In 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 numb
32、er of test specimens or special mounting 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 followin
33、g documents, in whole or in part, are 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
34、 Rating of sound insulation in buildings 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.5DIN EN ISO 16251-
35、1:2014-11EN ISO 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).3.2improvement of impact sound insula
36、tionLreduction 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 coverings, where the impact is tran
37、smitted 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 is directly based on the IS
38、O 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 plate of similar thickness (
39、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 specimen on the plate. However,
40、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 reduction according to the ISO 1
41、01404series.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. It consists of a concrete
42、 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 shall be homogeneous and of
43、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.6DIN EN ISO 16251-1:2014-11 EN ISO 16251-1:2014 (E) 5.2 InstrumentsThe
44、 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 level meter or an equivalent measurement system
45、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 tapping machine used has been declared to mee
46、t 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 may produce rather obviously erroneous results
47、, 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 measurements according to ISO 101404.6 Test procedure6.
48、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 lift
49、ing. 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 machine and accelerometersThe accelerometer(s) shall be rigidly attached to the lower surface of the concrete slab (screwed or glued). Incorrect measurements may be caused by poor fixing and cable routing or by environmental conditions such as strong electr
