1、Designation: E1332 10aE1332 16Standard Classification forRating Outdoor-Indoor Sound Attenuation1This standard is issued under the fixed designation E1332; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision.
2、A number in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.INTRODUCTIONThis classification is part of a set of ratings for the sound isolating properties of materials, buildingelements, and structures. It
3、 is based on A-weighted reduction of a transportation noise source. Otherratings include Classification E413 that rates the ability of a partition to reduce speech and othersounds within a limited frequency range, and Classification E989 that provides a rating method forcomparing the impact-insulati
4、on properties of floor-ceiling assemblies.1. Scope1.1 The purpose of this classification is to provide a method to calculate single-number ratings that can be used for assesing theisolation for the outdoor sound provided by a building or comparing building facade specimens including walls, doors, wi
5、ndows,and combinations thereof, including complete structures. These ratings are designed to correlate with subjective impressions of theability of building elements to reduce the penetration of outdoor ground and air transportation noise.noise that contains stronglow-frequency sound.2 These ratings
6、 provide an evaluation and rank ordering of the performance of test specimens based on theireffectiveness at controlling the sound of a specific outdoor sound spectrum called the reference source spectrum.1.2 In addition to the calculation method, this classification defines some ratings not defined
7、 in other standards. Other standardsmay define additional ratings based on the method of this classification.1.3 The rating does not necessarily relate to the perceived aesthetic quality of the transmitted sound. Different facade elementswith similar ratings may differ significantly in the proportio
8、n of low and high frequency sound that they transmit. transmit and thespectra of sources can vary significantly. It is best to use specific sound transmission loss values, in conjunction with actual spectraof outdoor and indoor sound levels, for making final selections of facade elements.1.4 Exclude
9、d from the scope of this classification are applications involving noise spectra differing markedly from thosedescribedthat shown in 4.1Table 1. Thus excluded, for example, would be certain industrial noises with high levels at frequenciesbelow the 80 Hz one-third octave band, relative to levels at
10、higher frequencies. frequencies, and any source, including sometransportation sources, that does not have a spectrum similar to that in Table 1. However, for any source with a spectrum similarto thosethat in 4.1Table 1, this classification provides a more reliable ranking of the performance of parti
11、tions and facade elementsthan do other classifications such as Classification E413.1.5 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.1.6 This standard does not purport to address all of the safety concerns, if any, associate
12、d with its use. It is the responsibilityof the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatorylimitations prior to use.2. Referenced Documents2.1 ASTM Standards:3C634 Terminology Relating to Building and Environmental Acoustics
13、E90 Test Method for Laboratory Measurement of Airborne Sound Transmission Loss of Building Partitions and Elements1 This classification is under the jurisdiction of ASTM Committee E33 on Building and Environmental Acoustics and is the direct responsibility of Subcommittee E33.03on Sound Transmission
14、.Current edition approved May 1, 2010Nov. 1, 2016. Published June 2010December 2016. Originally approved in 1990. Last previous edition approved in 2010 asE1332E1332 10a.10. DOI: 10.1520/E1332-10A. 10.1520/E1332-16.2 This classification may be used in conjunction with Test Method E90 or Guide E966.3
15、 For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at serviceastm.org. For Annual Book of ASTM Standardsvolume information, refer to the standards Document Summary page on the ASTM website.This document is not an ASTM standard and is intended only to
16、provide the user of an ASTM standard an indication of what changes have been made to the previous version. Becauseit may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current versionof
17、the standard as published by ASTM is to be considered the official document.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States1E413 Classification for Rating Sound InsulationE966 Guide for Field Measurements of Airborne Sound Attenuation
18、 of Building Facades and Facade ElementsE989 Classification for Determination of Impact Insulation Class (IIC)2.2 ANSI Standard:ANSI S1.4 Part 1 American National Standard Specification for Electroacoustics Sound Level Meters Part 1 Specifications42.3 ISO Standard:5ISO 532 AcousticsMethod for Calcul
19、ating Loudness Level43. Terminology3.1 The following terms used in this classification have specific meanings that are defined in Terminology C634: airbornesound, decibel, impact insulation class, level reduction, octave band, outdoor-indoor transmission loss, sound insulation, soundisolation, sound
20、 level, sound transmission loss.3.2 Definitions of Terms Specific to This Standard:Definitions:3.2.1 apparent outdoor-indoor transmission class, AOITC() , AOITC(), nof a building faade or faade element, at aspecified angle or range of angles - a a single-number rating calculated in accordance with C
21、lassification E1332 using measuredvalues of apparent outdoor-indoor transmission loss.loss at a specified angle or range of angles.3.2.2 apparent outdoor-indoor transmission loss, AOITL() ,AOITL(), dB, nof a building faade or faade element, in aspecified frequency band at a specified angle or range
22、of angles the value of outdoor-indoor transmission loss obtained on atest faade element as installed, without flanking tests to identify or eliminate extraneous transmission paths; the AOITL is thelower limiting value of the outdoor-indoor transmission loss of the faade element.in a specified freque
23、ncy band, for a source ata specified angle or range of angles as measured from the normal to the center of the specimen surface, without flanking teststo identify or eliminate extraneous transmission paths.3.2.2.1 DiscussionAll the sound power transmitted into the receiving room through both direct
24、and flanking paths is attributed solely to the physicalarea of the test specimen. If flanking transmission is significant, the AOITL will be less than the actual OITL for the specimen.3.2.3 outdoor-indoor level reduction, OILR(), noise reduction, OINR or OINR(), dB, nof a building faade, faade eleme
25、nt,or combination of faade surfaces enclosing a room, in a specified frequency band at a specified angle or range of anglesthefora specified source angle of incidence or source sound distribution, the difference between the time-averaged exteriortime-averagefree-field sound pressure level which woul
26、d be present at the faade of the room were the building and its faade not present dueto a sound source at a specified angle of incidence or range of angles exterior of a faade and the space-time average soundpressure level in a room of a building.building exposed to the outdoor sound through that fa
27、ade.4 Available from American National Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036, http:/www.ansi.org.5 Available from International Organization for Standardization (ISO), ISO Central Secretariat, BIBC II, Chemin de Blandonnet 8, CP 401, 1214 Vernier, Geneva,Switzerla
28、nd, http:/www.iso.org.TABLE 1 Reference Source SpectrumOne-third Octave BandCenter Frequency,HzSound Level, dB80 103100 102125 101160 98200 97250 95315 94400 93500 93630 91800 901000 891250 891600 882000 882500 873150 854000 84E1332 1623.2.3.1 DiscussionThe outdoor-indoor noise reduction was previou
29、sly referred to as the outdoor-indoor level reduction, OILR. If the result ismeasured for a source at a specific angle, or calculated based on outdoor-indoor transmission loss or apparent outdoor-indoortransmission loss, then the result is OINR(), a function of angle. If the result is calculated fro
30、m values of transmission loss or ismeasured with a horizontal line source such as road or air traffic, the OINR is then not a function of horizontal angle though itmay be a function of vertical angle for the horizontal line source.3.2.4 outdoor-indoor noise isolation class, OINIC or OINIC(), nof a b
31、uilding faade, faade element, or combination of anenclosed space exposed through a faade to an outdoor sound,faade surfaces enclosing a room, at a specified angle or rangeof anglesa a single-number rating calculated in accordance with Classification E1332 using measured values of outdoor-indoorlevel
32、noise reduction.3.2.5 outdoor-indoor transmission class, OITC, of a building faade or faade element, na of a building faade or faadeelement, a single-number rating calculated in accordance with Classification E1332 using measured values of sound transmissionloss.4. Significance and Use4.1 This class
33、ification provides a single number rating for transmission loss or noise reduction data that have been measuredor calculated. This rating is based on the difference between the overall A-weighted sound level of the sound spectrum given inTable 1 and the overall A-weighted sound level of the spectrum
34、 that results from arithmetically subtracting the transmission lossor noise reduction data from this spectrum. The spectrum shape is an average of three typical spectra from transportation sources(aircraft takeoff, freeway,road, and railroad diesel locomotive passby). A study showed that this classi
35、fication correlated well withthe A-weighted and loudness reductions (see ISO 532) calculated for each of the typical spectra individual spectra used indeveloping the rating for the one-third octave band range of 50 to 5000 Hz. The calculated numeric value of the rating is basedon the sound transmiss
36、ion loss or noise reduction values for a particular specimen and depends only on that data and the shapeof the reference source spectrum used in the calculation. The values shown in Table 1 have an arbitrary reference level.Single-number ratings should always be used with caution. Specimens having t
37、he same rating can result in different indoor spectradepending on the variation of their transmission loss with frequency. Also, if the actual spectrum of the outdoor sound is differentfrom that assumed in Table 1, the overallA-weighted outdoor-indoor noise reduction may be different from the OINIC.
38、 The stronglow-frequency content of the spectrum in Table 1 means that specimen achieving a high rating must have strong low-frequencytransmission loss. Use of this classification with the spectrum in Table 1 in situations where the source does not have a spectrumsimilar to Table 1 could result in r
39、equirements for more low-frequency transmission loss than is necessary for the application.Examples where this can occur are stage 3 jet aircraft, high-speed freeways with sound dominated by tire noise, and train passbyswith sound dominated by horns.64.2 This classification requires sound transmissi
40、on loss (TL), apparent outdoor-indoor transmission lost (AOITL() , loss(AOITL(), or outdoor-indoor noise reduction measurements (OILR()(OINR() data in one-third octave bands from 80 to 4000Hz. Due to accuracy limitations given in Test Method E90 and Guide E966, measurements below the 100 Hz one-thir
41、d octave bandare not usually reported. Studies have shown that data in the 80 Hz one-third octave band are necessary to obtain acceptablecorrelations for transportation sound sources. For the purposes of this classification, measurements of sound transmission loss inthe 80 Hz one-third octave band f
42、rom qualified laboratories are deemed to be of acceptable accuracy.4.3 Users of this classification should recognize that low frequency measurements of sound transmission loss may be affectedby the test specimen size or the specimen edge restraints, or both, particularly for small modular specimens
43、such as doors orwindows. Consequently, the outdoor-indoor transmission class (OITC) may also be affected by these factors, resulting in someuncertainty of the field performance of assemblies bearing a rating number using this classification, but to what extent is unknown.5. Basis of Classification5.
44、1 The rating of a test specimen is calculated using third-octave data such as transmission loss or outdoor-indoor noisereduction in the range 80 to 4000 Hz. This would usually be measured in accordance with Test Method E90 or Guide E966, butmight be estimated analitically. These data are then used t
45、o determine the A-weighted sound level reduction of the specimen forthe reference source spectrum specified in Table 1. The rating is then equal to the calculatedA-weighted sound reduction, roundedto the nearest decibel.5.2 The rating is calculated from the followingand rounded to the an integer val
46、ue:Rating5100.13210*log(f10Lf2Df1Af!/10! (1)6 Davy, J. L., “Insulating Buildings Against Transportation Noise,” Proceedings of ACOUSTICS 2004, Gold Coast Australia, 3-5 November 2004.E1332 163where:Lf = reference source spectrum,Af = A-weighting adjustment, andDf = Data at each one-third-octave freq
47、uency band, such as sound transmission loss or outdoor-indoor noise reduction.5.3 Table 2 shows a general worksheet for use in calculating the rating, and Table 3 shows an example worksheet for calculatingOITC. The figures in Column 3 for the A-weighting adjustments are taken from ANSI S1.4. Other r
48、atings may be computed usingthe same worksheet subsituting the appropriate data for the rating instead of the sound transmission loss.6. Presentation of Results6.1 It is recommended that ratings calculated in accordance with this classification always be presented together with a graphof the data us
49、ed for the calculation.5. Procedure5.1 The rating of a test specimen is calculated using third-octave data such as transmission loss or outdoor-indoor noisereduction in the range 80 to 4000 Hz. This would usually be measured in accordance with Test Method E90 or Guide E966, butmight be estimated analytically.5.2 The rating is calculated from the followingand rounded to the an integer value:Rating5100.13210*log(f10Lf2Df1Af!/10! (1)where:Lf = reference source spectrum,Af = A-weighting adjustment, andDf = Dat
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