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1、BRITISH STANDARD BS EN ISO 140-3:1995 BS 2750-3:1995 Incorporating Amendment No. 1 Acoustics Measurement of sound insulation in buildings and of building elements Part 3: Laboratory measurement of airborne sound insulation of building elements The European Standard EN ISO 140-3:1995, with the incorp
2、oration of amendment A1:2004, has the status of a British Standard ICS 17.140.40 ? BS EN ISO 140-3:1995 This British Standard, having been prepared under the direction of the Health and Environment Sector Board, was published under the authority of the Standards Board and comes into effect on 15 Dec
3、ember 1995 BSI 29 April 2005 The following BSI references relate to the work on this British Standard: Committee reference EPC/1 Draft for comment 92/55018 DC ISBN 0 580 24835 6 Committees responsible for this British Standard The preparation of this British Standard was entrusted to Technical Commi
4、ttee EPC/1, Acoustics, upon which the following bodies were represented: Association of Consulting Engineers British Broadcasting Corporation British Occupational Hygiene Society British Telecommunications plc Department of the Environment (Building Research Establishment) Department of Health Depar
5、tment of Trade and Industry (National Physical Laboratory) Health and Safety Executive Institute of Acoustics Institute of Occupational Hygienists Institute of Sound and Vibration Research Institution of Electrical Engineers Royal Institute of British Architects Society of Environmental Engineers Th
6、e following bodies were also represented in the drafting of the standard, through subcommittees and panels: Access Flooring Association Aggregate Concrete Block Association Association of Building Component Manufacturers Association of Building Engineers Association of Manufacturers of Domestic Unve
7、nted Supply Systems Equipment Autoclaved Aerated Concrete Products Association Brick Development Association British Bathroom Council British Ceramic Research Ltd. British Precast Concrete Federation Ltd. Calcium Silicate Brick Association Ltd. Concrete Block Association Concrete Society Gypsum Prod
8、ucts Development Association Heriot-Watt University Hevac Association Institute of Physics Sound and Communications Industries Federation Suspended Ceilings Association Amendments issued since publication Amd. No.DateComments 1527729 April 2005Addition of Introduction and Annex H BS EN ISO 140-3:199
9、5 BSI 29 April 2005 i Contents Page Committees responsibleInside front cover National forewordii Introduction1 1Scope1 2Normative references1 3Definitions1 4Equipment3 5Test arrangement3 6Test procedure and evaluation6 7Precision8 8Expression of results8 9Test report8 Annex A (normative) Putty for t
10、he mounting of glazings in the test opening9 Annex B (normative) Measurement of the sound reduction index of the filler wall (and any flanking constructions) for test openings for doors, windows, glazings and faade elements9 Annex C (normative) Qualification and positioning of the sound source10 Ann
11、ex D (informative) Measurement of flanking transmission13 Annex E (informative) Measurement of the total loss factor14 Annex F (informative) Guidance for measurements in the low-frequency bands15 Annex G (informative) Form for the expression of results16 Annex H (normative) Installation guidelines f
12、or lightweight twin leaf partitions18 Annex ZA (normative) Normative references to international publications with their relevant European publications19 Figure 1 Installation of a glass pane5 Figure H.1 Example for the position of the specimen relative to the acoustic break of the laboratory18 Tabl
13、e C.1 Prescribed maximum standard deviation for the mean value of measured level difference for N loudspeaker positions12 Table C.2 Maximum sound reduction index for the test object13 BS EN ISO 140-3:1995 ii BSI 29 April 2005 National foreword This British Standard has been prepared by Technical Com
14、mittee EPC/1 and is the official English language version of EN ISO 140-3:1995, including amendment A1:2004, Acoustics Measurement of sound insulation in buildings and of building elements Part 3: Laboratory measurement of airborne sound insulation of building elements, published by the European Com
15、mittee for Standardization (CEN), which is identical with ISO 140-3:1995 Acoustics Measurement of sound insulation in buildings and of building elements Part 3: Laboratory measurement of airborne sound insulation of building elements, published by the International Organization for Standardization (
16、ISO). This supersedes the standard BS 2750-3:1980 which is withdrawn. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”
17、, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. 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 does not of itself confer
18、 immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, the EN ISO title page, the EN ISO foreword page, pages 1 to 19 and a back cover. The BSI copyright notice displayed in this document indicates when the document was last i
19、ssued. EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 140-3 May 1995 + A1 December 2004 ICS 17.140.40 Descriptors: Acoustics, buildings, structural members, buildings elements, acoustic insulation, tests, laboratory tests, acoustic tests, acoustic measurements, testing conditions, airborne
20、 sound English version Acoustics Measurement of sound insulation in buildings and of building elements Part 3: Laboratory measurements of airborne sound insulation of building elements (includes amendment A1:2004) (ISO 140-3:1995 + A1:2004) Acoustique Mesurage de lisolement acoustique des immeubles
21、et des lments de construction Partie 3: Mesurage en laboratoire de laffaiblissement des bruits ariens par les lments de construction (inclut lamendement A1:2004) (ISO 140-3:1995 + A1:2004) Akustik Messung der Schalldmmung in Gebuden und von Bauteilen Teil 3: Messungen der Luftschalldmmung von Bautei
22、len in Prfstnden (enthlt nderung A1:2004) (ISO 140-3:1995 + A1:2004) This European Standard was approved by CEN on 1995-01-11, and amendment A1 was approved by CEN on 2004-08-08. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
23、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 Central Secretariat or to any CEN member. This European Standard exists in three official versions (Eng
24、lish, 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 Central Secretariat has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Cyprus, C
25、zech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. CEN European Committee for Standardization Comit Europe
26、n de Normalisation Europisches Komitee fr Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels 1995 All rights of reproduction and communication in any form and by any means reserved in all countries to CEN and its members Ref. No. EN ISO 140-3:1995 + A1:2004 E EN ISO 140-3:1995 BSI 29 A
27、pril 2005 Foreword The text of the International Standard ISO 140-3:1995 has been prepared by Technical Committee ISO/TC 43, Acoustics, in collaboration with CEN/TC 126, Acoustic properties of building products and of buildings. It has been submitted to Parallel Vote and has been approved on 1995-01
28、-11 as a European Standard. 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 November 1995, and conflicting national standards shall be withdrawn at the latest by June 1997. According to CEN/CENELE
29、C Internal Regulations, the following countries are bound to implement this European Standard: Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. NOTENormative references to intern
30、ational publications are listed in Annex ZA (normative). Foreword to amendment A1 This document (EN ISO 140-3:1995/A1:2004) has been prepared by Technical Committee CEN/TC 126, Acoustic properties of building elements and of buildings, the secretariat of which is held by AFNOR, in collaboration with
31、 Technical Committee ISO/TC 43, Acoustics. This Amendment to the European Standard EN ISO 140-3:1995 shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by June 2005, and conflicting national standards shall be withdrawn at th
32、e latest by June 2005. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ire
33、land, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EN ISO 140-3:1995 BSI 29 April 2005 1 Introduction Evaluation of the results of a European Inter Laboratory Test in 1998 showed that the requir
34、ements given in ISO 140-1 are inadequate for lightweight twin partitions therefore Annex H has been added. 1 Scope This part of ISO 140 specifies a laboratory method of measuring the airborne sound insulation of building elements such as walls, floors, doors, windows, faade elements and faades, exce
35、pt those classified as small building elements (for which a measuring method is specified in ISO 140-101). The results obtained can be used to design building elements with appropriate acoustic properties, to compare the sound insulation properties of building elements and to classify such elements
36、according to their sound insulation capabilities. The measurements are performed in laboratory test facilities in which transmission of sound on flanking paths is suppressed. Results of measurements made in accordance with this part of ISO 140 therefore shall not be applied directly in the field wit
37、hout accounting for other factors affecting sound insulation, especially flanking transmission and loss factor. 2 Normative references The following standards contain provisions which, through reference in this text, constitute provisions of this part of ISO 140. At the time of publication, the edit
38、ions indicated were valid. All standards are subject to revision, and parties to agreements based on this part of ISO 140 are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below. Members of IEC and ISO maintain registers of currently valid
39、International Standards. ISO 140-1:2), Acoustics Measurement of sound insulation in buildings and of building elements Part 1: Requirements for laboratory test facilities with suppressed flanking transmission. ISO 140-2:1991, Acoustics Measurement of sound insulation in buildings and of building ele
40、ments Part 2: Determination, verification and application of precision data. ISO 354:1985, Acoustics Measurement of sound absorption in a reverberation room. ISO 717-1:3), Acoustics Rating of sound insulation in buildings and of building elements Part 1: Airborne sound insulation. IEC 225:1966, Octa
41、ve, half-octave and third-octave band filters intended for the analysis of sounds and vibrations. IEC 651:1979, Sound level meters. IEC 804:1985, Integrating-averaging sound level meters. IEC 942:1988, Sound calibrators. 3 Definitions For the purposes of this part of ISO 140, the following definitio
42、ns apply. 3.1 average sound pressure level in a room ten times the common logarithm of the ratio of the space and time average of the squared sound pressure to the square of the reference sound pressure, the space average being taken over the entire room with the exception of those parts where the d
43、irect radiation of a sound source or the near field of the boundaries (walls, etc.) is of significant influence This quantity is denoted by L and is expressed in decibels. If a continuously moving microphone is used, L is determined by 1)ISO 140-10:1991, Acoustics Measurement of sound insulation in
44、buildings and of building elements Part 10: Laboratory measurement of airborne sound insulation of small building elements. 2)To be published. (Revision of ISO 140-1:1990) 3)To be published. (Revision of ISO 717-1:1982) .(1) EN ISO 140-3:1995 2 BSI 29 April 2005 where If fixed microphone positions a
45、re used, L is determined by where p1, p2., pn are r.m.s. sound pressures at n different positions in the room. In practice, usually the sound pressure levels Li are measured. In this case L is determined by where Li are the sound pressure levels L1 to Ln at n different positions in the room. 3.2 sou
46、nd reduction index ten times the common logarithm of the ratio of the sound power W1 which is incident on a partition under test to the sound power W2 transmitted through the specimen This quantity is denoted by R and is expressed in decibels. In this part of ISO 140 the sound reduction index is eva
47、luated from where NOTE 1The derivation of equation (5) from equation (4) assumes that the sound fields are perfectly diffuse and that the sound radiated into the receiving room is transmitted only through the specimen. NOTE 2The expression “sound transmission loss” (TL) is also in use in English-spe
48、aking countries. It is equivalent to “sound reduction index”. 3.3 apparent sound reduction index ten times the common logarithm of the ratio of the sound power W1 which is incident on a partition under test to the total sound power transmitted into the receiving room if, in addition to the sound pow
49、er W2 transmitted through the specimen, the sound power W3, transmitted by flanking elements or by other components, is significant This quantity is denoted by R and is expressed in decibels. pis the sound pressure, in pascals; p0is the reference sound pressure and is equal to 20 Pa; Tmis the integration time, in seconds. .(2) .(3) .(4) .(5) L1is the average sound pressure level in the source room, in decibels; L2is the average sound