BS EN 29053-1993 声学.声学用材料.气流阻尼的测定.pdf
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1、- - - - - - - - - - - - - - - - - BRITISH STANDARD BS EN 29053:1993 ISO 9053:1991 Acoustics Materials for acoustical applications Determination of airflow resistance The European Standard EN 29053:1993 has the status of a British Standard UDC 699.844-405.8:534.833:620.1:533.6.011.3 BS EN 29053:1993
2、This British Standard, having been prepared under the direction of the Environment and Pollution Standards Policy Committee, was published under the authority of the Standards Board and comes into effect on 15 May 1993 BSI 12-1999 The following BSI references relate to the work on this standard: Com
3、mittee reference EPC/1 Draft for comment 88/56272 DC ISBN 0 580 21966 6 Cooperating organizations The European Committee for Standardization (CEN), under whose supervision this European Standard was prepared, comprises the national standards organizations of the following countries: AustriaOesterrei
4、chisches Normungsinstitut BelgiumInstitut belge de normalisation DenmarkDansk Standardiseringsraad FinlandSuomen Standardisoimisliito, r.y. FranceAssociation franaise de normalisation GermanyDeutsches Institut fr Normung e.V. GreeceHellenic Organization for Standardization IcelandTechnological Insti
5、tute of Iceland IrelandNational Standards Authority of Ireland ItalyEnte Nazionale Italiano di Unificazione LuxembourgInspection du Travail et des Mines NetherlandsNederlands Normalisatie-instituut NorwayNorges Standardiseringsforbund PortugalInstituto Portugus da Qualidade SpainAsociacin Espaola de
6、 Normalizacin y Certificacin SwedenStandardiseringskommissionen i Sverige SwitzerlandAssociation suisse de normalisation United KingdomBritishStandards Institution Amendments issued since publication Amd. No.DateComments BS EN 29053:1993 BSI 12-1999i Contents Page Cooperating organizationsInside fro
7、nt cover National forewordii Foreword2 1Scope3 2Definitions3 3Principle3 4Equipment3 5Test specimens8 6Test procedure9 7Precision9 8Test report9 Annex A (informative) Bibliography10 National annex NA (informative) Committees responsibleInside back cover Figure 1 Direct airflow method (method A) Basi
8、c principle4 Figure 2 Alternating airflow method (method B) Basic principle4 Figure 3 Measurement equipment, with cylindrical section, for direct airflow method (method A)5 Figure 4 Measurement cell with specimen holder for measuring fibre materials of loose and wadding structure (method B)7 Figure
9、5 Measurement cell with holder for cylindrical specimen (method B)8 BS EN 29053:1993 ii BSI 12-1999 National foreword This British Standard has been prepared under the direction of the Environment and Pollution Standards Policy Committee. It is the English language version of EN 29053:1993 Acoustics
10、 Materials for acoustical applications Determination of airflow resistance, published by the European Committee for Standardization (CEN). It is identical with ISO 9053:1991, published by the International Organization for Standardization (ISO). The airflow resistance of porous materials indicates,
11、in an indirect manner, some of their structural properties. It may be used to establish correlations between structure of these materials and some of their acoustical properties (for example, absorption, attenuation, etc.). This British Standard is, therefore, useful for two purposes: a) relating so
12、me of the acoustical properties of porous materials to their structure and their method of manufacture; b) ensuring product quality (quality control). A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their corre
13、ct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, the EN title page, pages 2 to 10, an inside back cover and a back cover. This standard has been
14、 updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover. EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 29053 March 1993 UDC 699.844-405.8:534.833:620.1:533.6.011.3 Descriptors: Acoustics, acoustic insulati
15、on, insulating materials acoustic, porous materials, gas permeability tests, air flow English version Acoustics Materials for acoustical applications Determination of airflow resistance (ISO 9053:1991) Acoustique Matriaux pour applications acoustiques Dtermination de la rsistance lcoulement de lair
16、(ISO 9053:1991) Akustik Materialien fr akustische Anwendungen Bestimmung des Strmungswiderstandes (ISO 9053:1991) This European Standard was approved by CEN 1993-02-12. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European S
17、tandard 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 (English, Fren
18、ch, 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, Denmark, Finland, F
19、rance, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CEN European Committee for Standardization Comit Europen de Normalisation Europisches Komitee fr Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels
20、 1993 Copyright reserved to CEN members Ref. No. EN 29053:1993 E EN 29053:1993 BSI 12-1999 2 Foreword Following the positive result of the primary questionnaire, CEN Technical Board decided to submit ISO 9053:1991 Acoustics Materials for acoustical applications Determination of airflow resistance to
21、 the formal vote. The result was positive. 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 September 1993, and conflicting national standards shall be withdrawn at the latest by September 1993. In
22、 accordance with the CEN/CENELEC Internal Regulations, the following countries are bound to implement this European Standard: Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom
23、. EN 29053:1993 BSI 12-19993 1 Scope This International Standard specifies two methods for the determination of the airflow resistance of porous materials for acoustical applications. It is applicable to test specimens cut from products of porous materials. NOTE 1Details of publications relating to
24、flow behaviour under both laminar and turbulent conditions are given in Annex A. 2 Definitions For the purposes of this International Standard, the following definitions apply. 2.1 airflow resistance, R a quantity defined by it is expressed in pascal seconds per cubic metre 2.2 specific airflow resi
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