EN ISO 16032-2004 en Acoustics - Measurement of sound pressure level from service equipment in buildings - Engineering method《声学 建筑物服务设备的声压级测量 工程法 ISO 16032-2004》.pdf

1、BRITISH STANDARD BS EN ISO 16032:2004 Acoustics Measurement of sound pressure level from service equipment in buildings Engineering method The European Standard EN ISO 16032:2004 has the status of a British Standard ICS 17.140.20; 91.140.01 BS EN ISO 16032:2004 This British Standard was published un

2、der the authority of the Standards Policy and Strategy Committee on 29 September 2004 BSI 29 September 2004 ISBN 0 580 44521 6 National foreword This British Standard is the official English language version of EN ISO 16032:2004. It is identical with ISO 16032:2004. The UK participation in its prepa

3、ration was entrusted by Technical Committee EH/1, Acoustics, to Subcommittee EH/1/6, Building acoustics, which has the responsibility to: A list of organizations represented on this subcommittee can be obtained on request to its secretary. Cross-references The British Standards which implement inter

4、national or European publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purp

5、ort 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 immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committe

6、e any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN ISO title page, pages 2 to

7、23 and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. Date CommentsEUROPEANSTANDARD NORMEEUROPENNE EUROPISCHENORM ENISO16032 September2004 ICS17.140.20;91.140.01 Englishversion AcousticsMeasu

8、rementofsoundpressurelevelfromservice equipmentinbuildingsEngineeringmethod(ISO16032:2004) AcoustiqueMesurageduniveaudepressionacoustique desquipementstechniquesdanslesbtimentsMthode dexpertise(ISO16032:2004) AkustikMessungdesSchalldruckpegelsvon haustechnischenAnlageninGebuden Standardverfahren(ISO

9、16032:2004) ThisEuropeanStandardwasapprovedbyCENon16January2004. CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEurope an Standardthestatusofanationalstandardwithoutanyalteration.Uptodatelistsandbibliographicalreferencesconcernings uchnational

10、standardsmaybeobtainedonapplicationtotheCentralSecretariatortoanyCENmember. ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).Aversioninanyotherlanguagemadebytra nslation undertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheCentralSecretariathasthesamestatusast

11、heofficial versions. CENmembersarethenationalstandardsbodiesofAustria,Belgium,Cyprus,CzechRepublic,Denmark,Estonia,Finland,France, Germany,Greece,Hungary,Iceland,Ireland,Italy,Latvia,Lithuania,Luxembourg,Malta,Netherlands,Norway,Poland,Portugal, Slovakia, Slovenia,Spain,Sweden,SwitzerlandandUnitedKi

12、ngdom. EUROPEANCOMMITTEEFORSTANDARDIZATION COMITEUROPENDENORMALISATION EUROPISCHESKOMITEEFRNORMUNG ManagementCentre:ruedeStassart,36B1050Brussels 2004CEN Allrightsofexploitationinanyformandbyanymeansreserved worldwideforCENnationalMembers. Ref.No.ENISO16032:2004:EEN ISO 16032:2004 (E) 2 Contents pag

13、e Foreword3 Introduction .4 1 Scope5 2 Normative references5 3 Terms and definitions .5 4 Instrumentation8 5 Test method General 9 6 Measurement procedure.10 7 Measurement of reverberation time.12 8 Correction for background noise.12 9 Precision.13 10 Test report13 Annex A (normative) A-weighting an

14、d C-weighting correction value15 Annex B (normative) Operating conditions and operating cycles for measuring the maximum sound pressure level and the equivalent continuous sound pressure level 16 Bibliography 23 EN ISO 16032:2004 (E) 3 Foreword This document (EN ISO 16032:2004) has been prepared by

15、Technical Committee CEN/TC 126 “Acoustic properties of building products and of buildings”, the secretariat of which is held by AFNOR, in collaboration with Technical Committee ISO/TC 43 “Acoustics”. This European Standard shall be given the status of a national standard, either by publication of an

16、 identical text or by endorsement, at the latest by March 2005, and conflicting national standards shall be withdrawn at the latest by March 2005. This document includes a Bibliography. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries

17、 are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland

18、and United Kingdom. EN ISO 16032:2004 (E) 4 Introduction This document specifies the engineering method for the measurement of sound pressure level from service equipment in buildings. For use of this document measurements are performed under specified operation conditions and operating cycles. Such

19、 conditions are given in Annex B. The operating conditions and operating cycles given in Annex B are only used if they are not opposed to national requirements and regulations. EN ISO 16032:2004 (E) 5 1 Scope This document specifies methods for measuring the sound pressure level from service equipme

20、nt in buildings installed to building structures. This document covers specifically measurements of sanitary installations, mechanical ventilation, heating and cooling service equipment, lifts, rubbish chutes, boilers, blowers, pumps and other auxiliary service equipment, and motor driven car park d

21、oors, but can also be applied to other equipment attached to or installed in buildings. The methods are suitable for rooms with volumes of approximately 300 m 3or less in e.g. dwellings, hotels, schools, offices and hospitals. The standard is not in general intended for measurements in large auditor

22、ia and concert halls. However, the operating conditions and operating cycles in Annex B can be used in such cases. The service equipment sound pressure level is determined as the maximum A- weighted and optionally C- weighted sound pressure level occurring during a specified operation cycle of the s

23、ervice equipment under test, or as the equivalent continuous sound pressure level determined with a specified integration time. A-weighted and C- weighted values are calculated from octave-band measurements. 2 Normative references The following referenced documents are indispensable for the applicat

24、ion of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 60942, Electroacoustics Sound calibrators (IEC 60942:2003). EN 61260, Electroacoustics Octave-band and fractional-o

25、ctave-band filters (IEC 61260:1995). EN 61672-1, Electroacoustics - Sound level meters - Part 1: Specifications (IEC 61672-1:2002). EN 61672-2, Electroacoustics - Sound level meters - Part 2: Pattern evaluation tests (IEC 61672-2:2003). EN ISO 3382, Acoustics - Measurement of the reverberation time

26、of rooms with reference to other acoustical parameters (ISO 3382:1997). 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 sound pressure level L ten times the logarithm to the base 10 of the ratio of the square of the sound pressure, p 2 (t), t

27、o the square of the reference sound pressure 2 0 p , measured with a particular time weighting and a particular frequency weighting, selected from those defined in EN 61672-1. It is expressed in decibels. The reference sound pressure is 20 Pa EN ISO 16032:2004 (E) 6 3.2 average sound pressure level

28、L n 10lg 10 = n 1 i 1 , 0 i = L L dB (1) where L iis the sound pressure level at different microphone positions, in decibels, to be averaged 3.3 A- weighted sound pressure level calculated from octave-band values in the frequency range 63 Hz to 8 000 Hz L A dB 10lg 10 = ) 0,1( n 1 = i A i i A L L +

29、(2) where L iis the sound pressure level in octave-band i, and A iis the A-weighting correction for octave-band i (see Annex A). The value of L idepends on the measurements, but can be all the parameters of 3.6 3.4 C- weighted sound pressure level calculated from octave-band values in the frequency

30、range 31,5 Hz to 8 000 Hz L C 10lg 10 = ) 0,1( =1 dB i i n i C C L L + (3) where L iis the sound pressure level in octave-band i, and C iis the C-weighting correction for octave-band i (see Annex A). The value of L idepends on the measurements, but can be all the parameters of 3.6 EN ISO 16032:2004

31、(E) 7 3.5 sound exposure level L Ethe sound exposure level of a sound event is given by the formula: dB o o E t p t p t L d ) (1lg 10 = 2 2 t t 2 1 (4) where p(t) is the instantaneous sound pressure in Pascals; t 2- t 1is a stated time interval long enough to encompass all significant sound of a sta

32、ted event, in seconds; p ois the reference sound pressure (20 Pa); t ois the reference duration (t o= 1 s) 3.6 service equipment sound pressure level in octave-bands in the frequency range 31,5 Hz to 8 000 Hz in the following subclauses 3.6.1 to 3.6.9 are defined the octave-band values which can be

33、measured according to this document. See also Clause 5, Table 1 3.6.1 L S maxmaximum sound pressure level in octave-bands determined with time weighting “S” 3.6.2 L S max, nTmaximum sound pressure level in octave-bands determined with time weighting “S” and standardized to a reverberation time of 0,

34、5 s (3.8, equation (5) 3.6.3 L S max, nmaximum sound pressure level in octave-bands determined with time weighting “S” and normalized to an equivalent sound absorption area of 10 m 2(3.8, equation (6) 3.6.4 L F maxmaximum sound pressure level in octave-bands determined with time weighting “F” 3.6.5

35、L F max, nTmaximum sound pressure level in octave-bands determined with time weighting “F” and standardized to a reverberation time of 0,5 s (3.8, equation (5) 3.6.6 L F max, nmaximum sound pressure level in octave-bands determined with time weighting “F” and normalized to an equivalent sound absorp

36、tion area of 10 m 2(3.8, equation (6) 3.6.7 L eqequivalent continuous sound pressure level in octave-bands EN ISO 16032:2004 (E) 8 3.6.8 L eq, nTequivalent continuous sound pressure level in octave-bands standardized to a reverberation time of 0,5 s (3.8, equation (5) 3.6.9 L eq, nequivalent continu

37、ous sound pressure level in octave-bands normalized to an equivalent sound absorption area of 10 m 2(3.8, equation (6) 3.7 reverberation time T time that would be required for the sound pressure level to decrease by 60 dB after the sound source has stopped. It is expressed in seconds 3.8 standardize

38、d/normalized sound pressure level the measured sound pressure levels in octave-bands can be standardized to a reverberation time of 0,5 s or normalized to an equivalent sound absorption area of 10 m 2 . The equations (5) and (6), respectively, are used dB 0 nT T T L Llg 10 - = (5) where L can be L S

39、 max , L F max , L eq ; T is the measured reverberation time in seconds; T 0= 0,5 s V T A L L 0,16lg 10 - = 0 n(6) where L can be L S max , L F max , L eq ; T is the measured reverberation time in seconds; V is the room volume in cubic metres; A 0is the reference equivalent sound absorption area in

40、square metres; A 0= 10 m 20,16 has the unit m s . 4 Instrumentation Measurement of the maximum sound pressure level according to this document implies the use of an octave-band real-time frequency analyser. The analyser shall be able to read values of all octave-band sound pressure levels at the tim

41、e when the maximum A-weighted or C-weighted sound pressure level occurs (during a specified operating cycle of the service equipment under test). EN ISO 16032:2004 (E) 9 NOTE It is important to ensure that the equipment used according to this document fulfils the requirement stated above. The most c

42、ommon analysers used for building acoustic measurements include this feature. The instrumentation system, including the microphone and cable, shall meet the requirements for a class 1 instrument specified in EN 61672-1. For measurements in octave-bands, the filters shall meet the requirements for cl

43、ass 1 filters specified in EN 61260. At the beginning and at the end of the measurements verify the sensitivity of the instrumentation with a sound calibrator class 1 according to EN 60942. 5 Test method General The service equipment sound pressure level is measured in octave-bands in the frequency

44、range 31,5 Hz/63 Hz to 8 000 Hz as the linear (unweighted) spectrum corresponding to the maximum A-weighted or C-weighted sound pressure level occurring during a specified operating cycle of the service equipment under test. In order to measure the service equipment sound pressure level a parallel t

45、ime dependent recording of the A-weighted or C-weighted sound pressure level and the sound pressure levels in octave-bands shall be made (multispectral recording). For evaluation of the equipment sound pressure level take the octave band spectrum at that time when the maximum A-weighted or C-weighte

46、d sound pressure level occurs. Time weighting “S” or “F” shall be used. Alternatively or additionally the equivalent continuous sound pressure level can be determined with a specified integration time. The octave-band results are corrected for background noise and - if required - standardized to a r

47、everberation time of 0,5 s or normalized to an equivalent sound absorption area of 10 m 2 . Finally the A-weighted and C-weighted sound pressure levels are calculated from the corrected octave-band results. A-weighted and C-weighted values shall always be calculated from octave-band results, also in

48、 situations where standardization or normalization is not carried out. The single number quantities which can be determined according to this document are given in Table 1 (calculated from the octave-band values defined in 3.6.1 to 3.6.9). The notation in the table shall be used when reporting measurement results. The different quantities can be combined according to e.g. requirements in national building code regulations. EN ISO 16032:2004 (E) 10 Table 1 Single number quantities A-weighte