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【英文标准名称】:StandardTestMethodforLaboratoryMeasurementofAirborneTransmissionLossofBuildingPartitionsandElementsUsingSoundIntensity
【原文标准名称】:用声音强度试验室测量建筑物分割和元件的空气传播传输损耗的标准试验方法
【标准号】:ASTME2249-2002(2008)
【标准状态】:现行
【国别】:美国
【发布日期】:2002
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:E33.03
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:roofs;panels;buildingindustry;floor;floor-ceiling;doors
【摘要】:ThistestmethodcanbeusedtoobtainanestimatethetransmissionlossofbuildingelementsinalaboratorysettingwherethesourceroomandthespecimenmountingconditionssatisfytherequirementsofTestMethodE90.Theacceptabilityofthereceivingroomwillbedeterminedbyasetoffieldindicatorsthatdefinethequalityandaccuracyoftheintensityestimate.Byappropriatelyconstructingthesurfaceoverwhichtheintensityismeasureditispossibletoselectivelyexcludetheinfluenceofsoundenergypathsincludingtheeffectsfromjoints,gapsaswellasflankingsoundpaths.ThismethodmaybeparticularlyusefulwhenaccuratemeasurementsofapartitioncannotbemadeinanTestMethodE90facilitybecausethepartitionsoundinsulationislimitedbyflankingtransmissioninvolvingfacilitysourceandreceiverroomsurfaces,(forexample,thepathfromthesourceroomfloortothereceiverroomfloorviatheisolatorsandtheslabsupportingthetwo).AnnexA3discussesthisindetail.Thediscretepointmethodallowsthemappingoftheradiatedsoundintensitywhichcanbeusedtoidentifydefectsoruniquefeatures(2)ofthepartition.Currentresearchreportedintheliteratureindicatethatthereexistsabiasbetweenmeasuresoftransmissionlossobtainedusingtheintensitytechniqueandthoseobtainedusingtheconventionaltworoomreverberationtechnique(forexample,TestMethodE90,(3)and(4)).AppendixEprovidesestimatesofthebiasthatmightbeexpected.Despitethepresenceofabias,nocorrectionsaretobeappliedtothemeasureddataobtainedbythistestmethod.1.1Thistestmethodcoversthemeasurementofairbornesoundtransmissionlossofbuildingpartitionssuchaswallsofallkinds,operablepartitions,floor-ceilingassemblies,doors,windows,roofs,panelsandotherspace-dividingbuildingelements.Itmayalsobehaveapplicationsinsectorsotherthanthebuildingindustry,althoughthesearebeyondthescope.1.2TheprimaryquantityreportedbythisstandardisIntensityTransmissionLoss(ITL)andshallnotbegivenanothername.Similarly,thesingle-numberratingIntensitySoundTransmissionClass(ISTC)derivedfromthemeasuredITLshallnotbegivenanyothername.1.3Thistestmethodmaybeusedtorevealthesoundradiationcharacteristicsofapartitionorportionthereof.1.4ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Note18212;ThemethodformeasuringthesoundintensityradiatedbythebuildingelementundertestdefinedbythisASTMstandardmeetsorexceedsthoseofISO15186-1.SpecialconsiderationwillhavetobegiventorequirementsforthesourceroomandspecimenmountingifcompliancewithISO15186-1isalsodesiredastheydifferfromthoseofthisstandard.
【中国标准分类号】:P31
【国际标准分类号】:91_120_20
【页数】:15P.;A4
【正文语种】:英语