ASTM E90-2009 6875 Standard Test Method for Laboratory Measurement of Airborne Sound Transmission Loss of Building Partitions and Elements《实验室测量建筑物隔墙和构件的空气声音传输损失的标准试验方法》.pdf
《ASTM E90-2009 6875 Standard Test Method for Laboratory Measurement of Airborne Sound Transmission Loss of Building Partitions and Elements《实验室测量建筑物隔墙和构件的空气声音传输损失的标准试验方法》.pdf》由会员分享,可在线阅读,更多相关《ASTM E90-2009 6875 Standard Test Method for Laboratory Measurement of Airborne Sound Transmission Loss of Building Partitions and Elements《实验室测量建筑物隔墙和构件的空气声音传输损失的标准试验方法》.pdf(15页珍藏版)》请在麦多课文档分享上搜索。
1、Designation: E 90 09Standard Test Method forLaboratory Measurement of Airborne Sound TransmissionLoss of Building Partitions and Elements1This standard is issued under the fixed designation E 90; the number immediately following the designation indicates the year of originaladoption or, in the case
2、of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A superscriptepsilon () indicates an editorial change since the last revision or reapproval.INTRODUCTIONThis test method is part of a set for evaluating the sound-insulating properties of building
3、elements.It is designed to measure the transmission of sound through a partition or partition element in alaboratory. Others in the set cover the measurement of sound isolation in buildings (Test MethodE 336), the laboratory measurement of impact sound transmission through floors (Test Method E 492)
4、,the measurement of impact sound transmission in buildings (Test Method E 1007), the measurementof sound transmission through building facades and facade elements (Guide E 966), the measurementof sound transmission through a common plenum between two rooms (Test Method E 1414), a quickmethod for the
5、 determination of airborne sound isolation in multiunit buildings (Practice E 597), andthe measurement of sound transmission through door panels and systems (Test Method E 1425).1. Scope1.1 This test method covers the laboratory measurement ofairborne sound transmission loss of building partitions s
6、uch aswalls of all kinds, operable partitions, floor-ceiling assemblies,doors, windows, roofs, panels, and other space-dividing ele-ments.1.2 Laboratories are designed so the test specimen consti-tutes the primary sound transmission path between the two testrooms and so approximately diffuse sound f
7、ields exist in therooms.1.3 Laboratory AccreditationThe requirements for ac-crediting a laboratory for performing this test method are givenin Annex A4.1.4 This standard does not purport to address all of thesafety concerns, if any, associated with its use. It is theresponsibility of the user of thi
8、s standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards:2C 423 Test Method for Sound Absorption and Sound Ab-sorption Coefficients by the Reverberation Room MethodC 634 Terminol
9、ogy Relating to Building and Environmen-tal AcousticsE 336 Test Method for Measurement of Airborne SoundAttenuation between Rooms in BuildingsE 413 Classification for Rating Sound InsulationE 492 Test Method for Laboratory Measurement of ImpactSound Transmission Through Floor-Ceiling AssembliesUsing
10、 the Tapping MachineE 966 Guide for Field Measurements of Airborne SoundInsulation of Building Facades and Facade ElementsE 1007 Test Method for Field Measurement of TappingMachine Impact Sound Transmission Through Floor-Ceiling Assemblies and Associated Support StructuresE 1111 Test Method for Meas
11、uring the Interzone Attenua-tion of Open Office ComponentsE 1289 Specification for Reference Specimen for SoundTransmission LossE 1332 Classification for Determination of Outdoor-IndoorTransmission ClassE 1414 Test Method for Airborne Sound Attenuation Be-tween Rooms Sharing a Common Ceiling PlenumE
12、 1425 Practice for Determining the Acoustical Perfor-mance of Exterior Windows and DoorsE 2235 Test Method for Determination of Decay Rates forUse in Sound Insulation Test Methods2.2 ANSI Standards:S1.6-1984 (R2006) American National Standard PreferredFrequencies, Frequency Levels, and Band Numbers
13、for1This test method is under the jurisdiction ofASTM Committee E33 on Buildingand Environmental Acoustics and is the direct responsibility of SubcommitteeE33.03 on Sound Transmission.Current edition approved July 1, 2009. Published August 2009. Originallyapproved in 1955. Last previous edition appr
14、oved in 2004 as E 90 04.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.1Copyright ASTM International, 100 Ba
15、rr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.Acoustical Measurement3S1.10 Pressure Calibration of Laboratory Standard PressureMicrophones3S1.11 Specification for Octave-Band and Fractional-Octave-Band Analog and Digital Filters3S1.40 Specifications and Verification P
16、rocedures for SoundCalibrators3S1.43 Specifications for Integrating-Averaging Sound-Level Meters3S12.51 AcousticsDetermination of Sound Power Levelsof Noise Sources Using Sound PressurePrecision Meth-ods for Reverberation Rooms32.3 ISO Standards:ISO 717 Rating of Sound Insulation for Dwellings3ISO 3
17、741 AcousticsDetermination of Sound Power Levelof Noise SourcesPrecision Methods for ReverberationRooms32.4 IEC Standards:IEC 60942 ElectroacousticsSound Calibrators4IEC 61672 ElectroacousticsSound Level MetersPart 1:Specifications43. Terminology3.1 The following terms used in this test method haves
18、pecific meanings that are defined in Terminology C 634.acoustical barrier reverberation roomairborne sound sound absorptionaverage sound pressure level sound attenuationbackground noise sound energydamp sound insulationdecay rate sound isolationdecibel sound leveldiffraction sound powerdiffuse sound
19、 field sound pressuredirect sound field sound pressure levelflanking transmission sound transmission levellevel sound transmission classoctave band sound transmission coefficientpink noise sound transmission lossreceiving room source roomreverberant sound field unit3.1.1 For the purposes of this tes
20、t method, transmission lossis operationally defined as the difference in decibels betweenthe average sound pressure levels in the reverberant source andreceiving rooms, plus ten times the common logarithm of theratio of the area of the common partition to the soundabsorption in the receiving room (s
21、ee Eq 5).NOTE 1Sound transmission coefficient and sound transmission lossare related by either of the two equations:TL 5 10 log1/t! (1)t510TL/10(2)4. Summary of Test Method4.1 Two adjacent reverberation rooms are arranged with anopening between them in which the test partition is installed.Care is t
22、aken that the only significant sound transmission pathbetween rooms is by way of the test partition. An approxi-mately diffuse sound field is produced in one room, the sourceroom. Sound incident on the test partition causes it to vibrateand create a sound field in the second room, the receivingroom.
23、 The space- and time-averaged sound pressure levels inthe two rooms are determined. In addition, with the testspecimen in place, the sound absorption in the receiving roomis determined. The sound pressure levels in the two rooms, thesound absorption in the receiving room and the area of thespecimen
24、are used to calculate sound transmission loss asshown in Section 11. Because transmission loss is a function offrequency, measurements are made in a series of frequencybands.4.2 In theory, it is not important which room is designated asthe source and which as the receiving room. In practice,differen
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