Product Code:SAE AMS3270
Title:Chloroprene (Cr) Rubber Sheet, Cotton Fabric Reinforced, Weather Resistant
Issuing Committee:Ams P Polymeric Materials Committee
Scope:This specification covers cotton-fabric-reinforced chloroprene (CR) rubber in the form of sheet. Primarily for parts, such as gaskets and seals, requiring resistance to weather, moderate heat, water, and petroleum-base lubricating oil.【英文标准名称】:Acoustics-Measurementofsoundinsulationinbuildingsandofbuildingelements-Laboratorymeasurementofsoundgeneratedbyrainfallonbuildingelements
【原文标准名称】:声学.建筑物部件和建筑物隔音.实验室测量建筑物构件落雨声
【标准号】:BSENISO140-18-2006
【标准状态】:现行
【国别】:英国
【发布日期】:2006-12-29
【实施或试行日期】:2006-12-29
【发布单位】:英国标准学会(BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:ThispartofISO140specifiesalaboratorymethodofmeasurementoftheimpactsoundinsulationofroofs,roof/ceilingsystemsandskylightsexcitedbyartificialrainfall.Theresultsobtainedcanbeusedforassessingthenoisetobeproducedbyrainfallonagivenbuildingelementintheroomorspacebelow.Theresultscanalsobeusedtocomparerainfallsoundinsulationcapabilitiesofbuildingelementsandtodesignbuildingelementswithappropriaterainfallsoundinsulationproperties.ThispartofISO140isbasedonmeasurementswithartificialraindropsundercontrolledconditionsusingawatertankinalaboratorytestfacilityinwhichflankingsoundtransmissionissuppressed.Measurementsusingrealrain,althoughausefulmeansforvalidationpurposes,arenotincludedbecauseofthevariable,unpredictableandintermittentnatureofrealrain.Othermechanicalsimulationmethodsunderinvestigationbyresearchersarenotsufficientlywelldevelopedatpresenttoadequatelysimulaterealrainbothintermsofsoundlevelsandspectragenerated.
【中国标准分类号】:P31
【国际标准分类号】:91_120_20
【页数】:28P;A4
【正文语种】:英语