UL SUBJECT 2573-2008 消防用自动放气阀和空气/真空阀调查大纲.发布编号:1
作者:标准资料网 时间:2024-05-23 19:02:08 浏览:8109
来源:标准资料网
【英文标准名称】:OUTLINEOFINVESTIGATIONFORAUTOMATICAIRRELEASEANDAIR/VACUUMVALVESFORFIREPROTECTIONSERVICEIssueNumber:1
【原文标准名称】:消防用自动放气阀和空气/真空阀调查大纲.发布编号:1
【标准号】:ULSUBJECT2573-2008
【标准状态】:现行
【国别】:美国
【发布日期】:2008-02-15
【实施或试行日期】:
【发布单位】:美国保险商实验所(US-UL)
【起草单位】:UL
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:TherequirementscovertheoutlineofinvestigationforOUTLINEOFINVESTIGATIONFORAUTOMATICAIRRELEASEANDAIR/VACUUMVALVESFORFIREPROTECTIONSERVICEIssueNumber:1.
【中国标准分类号】:J16
【国际标准分类号】:
【页数】:
【正文语种】:英语
【英文标准名称】:ElectromagneticcompatibilityandRadiospectrumMatters(ERM)-VHFradiotelephoneequipmentforgeneralcommunicationsandassociatedequipmentforClass"D"DigitalSelectiveCalling(DSC)-Part2:HarmonizedENunderarticle3.2ofthederR&TTEDire
【原文标准名称】:电磁兼容性和射频频谱管理(ERM).普通通信用VHF无线电话设备和"D"级数字选择呼叫(DSC)用相关设备.第2部分:按照R&TTE指令3.2条协调的欧洲标准
【标准号】:DINEN301025-2-2001
【标准状态】:作废
【国别】:德国
【发布日期】:2001-08
【实施或试行日期】:
【发布单位】:德国标准化学会(DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:试验;无线电设备;额定值;发射机;试验条件;无线电话;测量;接收机;数字选择呼叫设备;选择呼叫;测量技术;电信;EMC;传播技术;无线电装置;无线电工程;译码器;数字信号;甚高频;电磁兼容性;频率;环境试验
【英文主题词】:
【摘要】:
【中国标准分类号】:L06
【国际标准分类号】:33_060_99;33_100_01
【页数】:1P;A4
【正文语种】:德语
【英文标准名称】:StandardTestMethodforLaboratoryMeasurementofImpactSoundTransmissionThroughFloor-CeilingAssembliesUsingtheTappingMachine
【原文标准名称】:利用夯击机进行冲击声通过地板和天花板组件的实验室测量标准试验方法
【标准号】:ASTME492-2004
【标准状态】:现行
【国别】:
【发布日期】:2004
【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】:声传输;底部;声学;实验室;顶棚;建筑声学;试验设备;建筑;测量技术
【英文主题词】:floorceilingassemblies;soundtransmission;tappingmachine
【摘要】:Theevaluationoftheimpactsound-insulatingperformanceofafloor-ceilingassemblybeginswiththemeasurementofthesoundpressurelevelsintheroombelowthetestspecimen.Thespectrumofthenoiseintheroombelowisdeterminedbythefollowing:5.1.1Thesizeandthemechanicalpropertiesofthefloor-ceilingassembly,suchasitsconstruction,surface,mountingoredgerestraints,stiffness,orinternaldamping,5.1.2Theacousticalresponseoftheroombelow,and5.1.3Inevitably,thecharacteristicsandplacementoftheobjectordeviceproducingtheimpactsandthenatureordegreeoftheactualimpactitself.Thistestmethodisbasedontheuseofastandardizedtappingmachineofthetypespecifiedin8.1.1andplacedinspecificpositionsonthefloor.Thismachineproducesacontinuousseriesofuniformimpactsatauniformrateonatestfloorandgeneratesinthereceivingroombroadbandsoundpressurelevelssufficientlyhightomakeaccurateandreproduciblemeasurementspossible.Thetappingmachineitself,however,isnotdesignedtosimulateanyonetypeofimpact,suchasproducedbymaleorfemalefootsteps.Note18212;Caution:Becauseofitsportabledesign,thetappingmachinedoesnotsimulatetheweightofahumanwalker.Therefore,thecreakorboomofalimberfloorassemblycausedbysuchfootstepexcitationmaynotbereflectedinthesinglenumberimpactratingderivedfromtestresultsobtainedbythistestmethod.Thedegreeofcorrelationbetweentheresultsoftappingmachinetestsinthelaboratoryandtheoverallfieldperformanceoffloorsundertypicalconditionsofdomesticimpactexcitationmaybesubjecttosomevariation,dependingonboththetypeoffloorconstructionandthenatureoftheimpactexcitation.1.1Thistestmethodcoversthelaboratorymeasurementofimpactsoundtransmissionoffloor-ceilingassembliesusingastandardizedtappingmachine.Itisassumedthatthetestspecimenconstitutestheprimarysoundtransmissionpathintoareceivingroomlocateddirectlybelowandthatadiffusesoundfieldexistsinthisroom.1.2Measurementsmaybeconductedonfloor-ceilingassembliesofallkinds,includingthosewithfloating-floororsuspendedceilingelements,orboth,andfloor-ceilingassembliessurfacedwithanytypeoffloor-surfacingorfloor-coveringmaterials.1.3Thistestmethodprescribesauniformprocedureforreportinglaboratorytestdata,thatis,thenormalizedone-thirdoctavebandsoundpressurelevelstransmittedbythefloor-ceilingassemblyduetothetappingmachine.1.4Thisstandarddoesnotpurporttoaddressthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:P31
【国际标准分类号】:91_120_20
【页数】:10P.;A4
【正文语种】:
