ASTM_E_1414_-_E_1414M_-_16.pdf

Designation:E1414/E1414M16Standard Test Method forAirborne Sound Attenuation Between Rooms Sharing aCommon Ceiling Plenum1This standard is issued under the fixed designation E1414/E1414M;the number immediately following the designation indicates the yearof original adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of last reapproval.A superscript epsilon()indicates an editorial change since the last revision or reapproval.INTRODUCTIONThis test method is designed to measure the sound attenuation provided by a suspended ceiling inthe presence of a continuous plenum space under prescribed laboratory test conditions.The testmethod is an adaptation ofAMA1-II-1967 Method of Test.This modified test method may give resultsdiffering from the AMA-1-II procedure.1.Scope1.1 This test method utilizes a laboratory space so arrangedthat it simulates a pair of horizontally adjacent small offices orrooms separated by a partition and sharing a common plenumspace.The partition either extends to the underside of acommon plenum space or penetrates through it.In the pre-scribed configuration,special design features of the facilityensure that the only significant sound transmission path is byway of the ceiling and the plenum space.1.2 Within the limitations outlined in the significancestatement,the primary quantity measured by this test method isthe ceiling attenuation of a suspended ceiling installed in alaboratory environment.By accounting for receiving roomsound absorption,the normalized ceiling attenuation may bedetermined.1.3 The test method may also be used to evaluate theattenuation of composite ceiling systems comprised of theceiling material and other components such as luminaires andventilating systems.1.4 The field performance of a ceiling system may differsignificantly from the results obtained by this test method(seeSection 5,Significance and Use,and Test Method E336).1.5 The procedures may also be used to study the additionalsound insulation that may be achieved by other attenuationmeasures.This would include materials used either as plenumbarriers or as backing for all or part of the ceiling.1.6 The facility may also be used to study the performanceof an integrated system comprising plenum,ceiling,andpartition,tested as a single assembly.1.7 The values stated in either SI units or inch-pound unitsare to be regarded separately as standard.The values stated ineach system may not be exact equivalents;therefore,eachsystem shall be used independently of the other.Combiningvalues from the two systems may result in non-conformancewith the standard.1.8 This standard does not purport to address all of thesafety concerns,if any,associated with its use.It is theresponsibility of the user of this 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:2C423 Test Method for SoundAbsorption and SoundAbsorp-tion Coefficients by the Reverberation Room MethodC634 Terminology Relating to Building and EnvironmentalAcousticsC636 Practice for Installation of Metal Ceiling SuspensionSystems for Acoustical Tile and Lay-In PanelsE90 Test Method for Laboratory Measurement of AirborneSound Transmission Loss of Building Partitions andElementsE177 Practice for Use of the Terms Precision and Bias inASTM Test MethodsE336 Test Method for Measurement of Airborne SoundAttenuation between Rooms in Buildings1This 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 Oct.1,2016.Published October 2016.Originallyapproved in 1991.Last previous edition approved in 2011 as E1414/E1414M 11a1.DOI:10.1520/E1414_E1414M-16.2For 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.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 E413 Classification for Rating Sound InsulationE691 Practice for Conducting an Interlaboratory Study toDetermine the Precision of a Test Method2.2 ANSI Standards:S1.11 Specification for Octave-Band and Fractional-OctaveBand Analog and Digital Filters32.3 Other Standards:AMA 1-II-1967 Method of Test,Standard Specification forCeiling Sound Transmission Test by Two Room Method43.Terminology3.1 DefinitionsFor definitions of terms used in this testmethod see Terminology C634.3.2 Definitions of Terms Specific to This Standard:3.2.1 ceiling attenuation(Dc)the noise reduction betweenthe source and receiving rooms where flanking transmission byall paths are at least 10 decibels lower than the path through theceiling and plenum.Dc5 L12 L2(1)where L1is the average one-third octave band sound pres-sur