QJ 3208-2005 火箭推进剂输送系统金属膜盒式蓄压器通用规范

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基本信息
标准名称:火箭推进剂输送系统金属膜盒式蓄压器通用规范
英文名称:General specification for metal aneroid accummulator of rocket propellant transfer system
中标分类: 航空、航天 >> 航天地面设备 >> 运输、吊装与加注设备
ICS分类: 航空器和航天器工程 >> 地面服务和维修设备
发布日期:2005-04-11
实施日期:2005-07-01
首发日期:
作废日期:
出版日期:
页数:10页
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所属分类: 航空 航天 航天地面设备 运输 吊装与加注设备 航空器和航天器工程 地面服务和维修设备
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【英文标准名称】:StandardTestMethodforLaboratoryMeasurementofAirborneSoundTransmissionLossofBuildingPartitionsandElements
【原文标准名称】: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
【标准号】:ASTME90-2009
【标准状态】:现行
【国别】:美国
【发布日期】:2009
【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】:airbornesoundtransmissionloss;flankingtransmission;soundtransmissioncoefficient;soundtransmissionloss;transmissionloss;Acousticaltests;Diffusesoundfieldtest;Doors/doorassemblies;Floor-ceilingassemblies;Impactsoundtransmission(bu
【摘要】:SoundtransmissionlossasdefinedinTerminologyC634,referstotheresponseofspecimensexposedtoadiffuseincidentsoundfield,andthisisthetestconditionapproachedbythislaboratorytestmethod.Thetestresultsarethereforemostdirectlyrelevanttotheperformanceofsimilarspecimensexposedtosimilarsoundfields.Theyprovide,however,ausefulgeneralmeasureofperformanceforthevarietyofsoundfieldstowhichapartitionorelementmaytypicallybeexposed.Inlaboratoriesdesignedtosatisfytherequirementsofthistestmethod,theintentisthatonlysignificantpathforsoundtransmissionbetweentheroomsisthroughthetestspecimen.Thisisnotgenerallythecaseinbuildingswherethereareoftenmanyotherpathsforsoundsx2014;flankingsoundtransmission.Consequentlysoundratingsobtainedusingthistestmethoddonotrelatedirectlytosoundisolationinbuildings;theyrepresentanupperlimittowhatwouldbemeasuredinafieldtest.Thistestmethodisnotintendedforfieldtests.FieldtestsshallbeperformedaccordingtoTestMethodE336.Note28212;ThecomparablequantitymeasuredusingTestMethodE336iscalledtheapparentsoundtransmissionlossbecauseofthepresenceofflankingsoundtransmission.1.1Thistestmethodcoversthelaboratorymeasurementofairbornesoundtransmissionlossofbuildingpartitionssuchaswallsofallkinds,operablepartitions,floor-ceilingassemblies,doors,windows,roofs,panels,andotherspace-dividingelements.1.2Laboratoriesaredesignedsothetestspecimenconstitutestheprimarysoundtransmissionpathbetweenthetwotestroomsandsoapproximatelydiffusesoundfieldsexistintherooms.1.3LaboratoryAccreditation8212;TherequirementsforaccreditingalaboratoryforperformingthistestmethodaregiveninAnnexA4.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【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