BS-EN-20354-1993 ISO-354-1985.pdf
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1、BRITISH STANDARD BS EN 20354:1993 ISO 354:1985 Implementing Amendment Nos. 1 and 2, not published separately Acoustics Measurement of sound absorption in a reverberation room The European Standard EN 20354:1993 has the status of a British Standard ICS 17.140.01 Licensed Copy: sheffieldun sheffieldun
2、, na, Wed Nov 01 05:13:20 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 20354:1993 This British Standard, having been prepared under the direction of the Environment and Pollution Standards Committee, was published under the authority of the Board of BSI and comes into effect on 27 February 1987
3、BSI 04-1999 First published June 1963 First revision February 1987 ISBN 0 580 15640 0 Committees responsible for this British Standard The preparation of this British Standard was entrusted by the Environment and Pollution Standards Committee (EPC/-) to Technical Committee EPC/1, upon which the foll
4、owing bodies were represented: Association of Consulting Engineers British Broadcasting Corporation British Occupational Hygiene Society British Telecommunications plc Department of Health and Social Security Department of the Environment (Building Research Establishment) Department of Trade and Ind
5、ustry (Air Division) Department of Trade and Industry (National Physical Laboratory) Engineering Equipment and Materials Users Association Health and Safety Executive Incorporated Association of Architects and Surveyors Institute of Acoustics Institute of Occupational Hygienists Institute of Physics
6、 Institute of Sound and Vibration Research Institution of Civil Engineers Institution of Electronic and Radio Engineers Petroleum Industry Association Royal Institute of British Architects Society of Environmental Engineers Transmission and Distribution Association (BEAMA Limited) The following bodi
7、es were also represented in the drafting of the standard, through subcommittees and panels: Aggregate Concrete Block Association Association of Building Component Manufacturers Ltd. Autoclaved Aerated Concrete Products Association Brick Development Association British Ceramic Research Association Ca
8、lcium Silicate Brick Association Limited Cement Makers Federation Concrete Society Gypsum Products Development Association Heriot-Watt University Hevac Association National Brassfoundry Association Structural Insulation Association Suspended Ceilings Association Timber Research and Development Assoc
9、iation Amendments issued since publication Amd. No.Date of issueComments 7781September 1993 Adoption as a European Standard 9974May 1998Annex D has been added Licensed Copy: sheffieldun sheffieldun, na, Wed Nov 01 05:13:20 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 20354:1993 BSI 04-1999i Cont
10、ents Page Committees responsibleInside front cover National forewordii Foreword2 0Introduction3 1Scope and field of application3 2References3 3Definitions3 4Principle4 5Apparatus4 6Test arrangement4 7Test procedure6 8Expression of results7 9Test report8 Annex A Diffusivity of the sound field in the
11、reverberation room10 Annex B Explanatory remarks on the formulae in 8.1.2.3 and 8.1.310 Annex C Determination of repeatability10 Annex D (normative) Test specimen mountings for sound absorption tests11 Figure Assessment of reproducibility R of S for a) sample 1 having a high absorption coefficient (
12、S 1,00), and b) sample 2 having a low absorption coefficient (S 0,05) in all one-third octave bands9 Table 1 Maximum equivalent sound absorption areas for room volume V = 200 m34 Table 2 Requirements for temperature and relative humidity during measurements of T1 and T26 Table 3 Factor “t”11 Publica
13、tions referred toInside back cover Licensed Copy: sheffieldun sheffieldun, na, Wed Nov 01 05:13:20 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 20354:1993 ii BSI 04-1999 National foreword This British Standard has been prepared by Subcommittee EH/1/6 and is the English language version of EN 203
14、54:1993 Acoustics Measurement of sound absorption in a reverberation room, including its amendment A1:1997, published by the European Committee for Standardization (CEN). It is identical with ISO 354:1985, including its amendment 1, published by the International Organization for Standardization (IS
15、O). Terminology and conventions. The text of the international standard has been approved as suitable for publication as a British Standard without deviation. Some terminology and certain conventions are not identical with those used in British Standards; attention is drawn especially to the followi
16、ng. The comma has been used as a decimal marker. In British Standards it is current practice to use a full point on the baseline as the decimal marker. Wherever the words “International Standard” appear, referring to this standard, they should be read as “British Standard”. Textual errors. When adop
17、ting the text of the international standard, the textual errors listed below were discovered. They have been marked in the text and have been reported to ISO in a proposal to amend the text of the international standard. In the following clauses the word “should” should be read as “shall”. 6.1.2, li
18、ne 1 6.2.1.2, line 1 6.2.2.2, lines 1, 7 and 9 6.2.2.3, lines 5 and 7 6.3, paragraph 1, lines 3 and 5 and paragraph 2, line 1 7.1, paragraph 1, line 4 and paragraph 4, line 1 7.2.1, paragraph 9, line 2 8.1.4, line 4 8.3, paragraph 3, line 7 and paragraph 4, line 3. In 6.3, line 3 of the note, “shall
19、” should be read as “should”. In 8.1.4, line 1, “should generally” should be read as “shall”. Cross-references International standardsCorresponding British Standards ISO 5725-1986BS 5497 Precision of test methods Part 1:1987 Guide for the determination of repeatability and reproducibility for a stan
20、dard test method (Technically equivalent) IEC 225:1966BS EN 61260:1996 Electroacoustics Octave-band and fractional-octave-band filters Licensed Copy: sheffieldun sheffieldun, na, Wed Nov 01 05:13:20 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 20354:1993 BSI 04-1999iii A British Standard does no
21、t purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct 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 f
22、ront cover, pages i to iv, the EN title page, pages 2 to 12, an inside back cover and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover. Licensed Copy: sheffieldun sheffi
23、eldun, na, Wed Nov 01 05:13:20 GMT+00:00 2006, Uncontrolled Copy, (c) BSI iv blank Licensed Copy: sheffieldun sheffieldun, na, Wed Nov 01 05:13:20 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 20354 June 1993 + A1 June 1997 UDC 534.62 Descriptors: Ac
24、oustics, tests, acoustic tests, acoustic measurements, sound absorption coefficient, reverberation, rooms English version Acoustics Measurement of sound absorption in a reverberation room (includes amendment A1:1997) (ISO 354:1985 + A1:1997) Acoustique Mesurage de labsorption acoustique en salle rve
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