IEC 46C/912/PAS-2010 带传输特性小于1000MHz的数字通信用对绞或星绞多芯对称电缆:由基于IEEE802.3PoE/PoEP协议的两或四对通用模式电路上电力传输调度的捆绑数据级电缆加热导线的评估

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【英文标准名称】:Symmetricalpair/quadcablesfordigitalcommunicationswithtransmissioncharacteristicsupto1000MHz:Assesssmentoftheconductorheatinginbundleddatagradecablesduetothedeploymentofpowertransmissionoverthecommonmodecircuitsofeither
【原文标准名称】:带传输特性小于1000MHz的数字通信用对绞或星绞多芯对称电缆:由基于IEEE802.3PoE/PoEP协议的两或四对通用模式电路上电力传输调度的捆绑数据级电缆加热导线的评估
【标准号】:IEC46C/912/PAS-2010
【标准状态】:作废
【国别】:国际
【发布日期】:2010-02
【实施或试行日期】:
【发布单位】:国际电工委员会(IX-IEC)
【起草单位】:IEC/SC46C
【标准类型】:()
【标准水平】:()
【中文主题词】:电缆结构;电缆护套;电缆;通信电缆;数据网络;数据传送;定义;数字工程;数字信号;尺寸;电气工程;电气试验;阻抗;绝缘件;LAN;测量;测量技术;机械试验;多芯电缆;双股线;特性;回程损耗;护套电缆;规范;规范(验收);对称的;通信;试验;传输;传输特性;布线
【英文主题词】:Cableconstruction;Cablesheaths;Cables;Communicationcables;Datanetwork;Datatransfer;Definitions;Digitalengineering;Digitalsignals;Dimensions;Electricalengineering;Electricaltesting;Impedance;Insulations;LAN;Measurement;Measuringtechniques;Mechanicaltesting;Multicorecables;Pairsofwires;Properties;Returnloss;Sheathedcables;Specification;Specification(approval);Symmetrical;Telecommunication;Telecommunications;Testing;Transmission;Transmissioncharacteristics;Wiring
【摘要】:
【中国标准分类号】:K13
【国际标准分类号】:33_120_20
【页数】:
【正文语种】:英语


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【英文标准名称】:StandardPracticeforComprehensiveBuildingAsbestosSurveys
【原文标准名称】:综合建筑物石棉调查的标准实施规程
【标准号】:ASTME2356-2009
【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】:E06.24
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:
【英文主题词】:Asbestos;Comprehensivebuildingasbestossurvey
【摘要】:Managementofasbestos-containingmaterialsinbuildingsandfacilitiesrequiresknowledgeofthelocation,type,quantity,andconditionofthematerial.Themorecompleteandaccuratetheinformationavailable,themoreappropriateandcost-effectivearethecontrolmeasuresusedtoreducepossibleexposuretoairborneasbestosfibers.Thisistruewhethertheasbestos-containingmaterialsremainundisturbedandcompletelyintact,areselectivelyremovedformaintenanceorpriortorenovation,orareremovedtothegreatestextentfeasiblebeforedemolishingthebuildingorfacility.Thispracticedescribesthreetypesofsurveysthatsupportdifferentobjectives.ThesearetheBaselineSurvey,theProjectDesignSurvey,andthePre-ConstructionSurvey.TheBaselineSurveyisabuilding-wideorfacility-wideinspectionthatprovidesageneralsenseoftheoveralllocation,type,quantity,andconditionofasbestos-containingmaterialspresent.Itisthoroughinthatmostaccessiblefunctionalspacesareinspectedandbulksamplestakenofsuspectmaterialsobserved.Thebaselinesurveyprovidesinformationforlong-termmanagementofasbestos-containingmaterialsandprioritizationofresponseactions.Thepresenceofasbestosinsuspectmaterialsmaybeassumedorpresumedinsomecaseswithoutbulksamplesbeingtakenoranalyzed.However,thebaselinesurveyisunobtrusiveinthatsamplesarenottakenwheredoingsowouldresultinobjectionabledamagetosurfacesorwhereinstitutionalbarriersprecludeaccess.Inabaselinesurvey,destructivetestingisavoided.PostingofsignsandlabelsrequiredforcompliancewithOSHAregulationswouldusetheinformationgeneratedduringaBaselineSurvey.Note18212;ABaselineSurveyissometimescalledanx201C;AHERAx201D;surveybecauseitprovidesthetypeofinformationusedformanagementofasbestos-containingmaterialsinschools.However,thebaselinesurveydescribedinthispracticerequiresinspection,bulksampling,quantification,andassessmentofsuspectmaterialsthatareexcludedbyvirtueoftheirtypeandlocationfromtheAHERAregulationsforschools.Note28212;SuspectmaterialsubjecttodisturbancebyplannedoremergencymaintenancemaynotalwaysbeidentifiedastoasbestoscontentinaBaselineSurvey.Collectingasinglebulksample,orasmallnumberofsamples,todetermineifthematerialcontainsasbestosdoesnotconstituteasurveywithinthemeaningofthispractice.Nonetheless,thesample(s)shouldbecollectedinaccordancewiththemethodsdescribedinAppendixX1(thismustbedonebyaproperly-credentialedindividual)andanalyzedassetforthin6.5.TheProjectDesignSurveyismorefocusedthanaBaselineSurveyandisusedtoprovideinformationtotheProjectDesignerforpreparingabatementplansandspecifications.Thelocationsinspectedarelimitedtotheareasthatwillbeaffectedbytheabatementproject.Iftheprojectisbeingdonepriortorenovationordemolition,theconstructionplansoratleastaclearstatementofthescopeoftherenovationordemolitionworkarerequiredforaproperProjectDesignSurvey.DestructivetestingisoftenrequiredforaProjectDesignSurvey.ThepresenceofasbestosinsuspectmaterialsisalwaysconfirmedinaProjectDesignSurveyratherthanbeingassumedorpresumed.OtherinformationrequiredfortheProjectDesigniscollectedduringthesurvey.ThePre-ConstructionSurveyisperformedinanticipationofrenovationordemolitionwhereaBaselineSurveyhasnotbeenconductedandthereisnoinformation,orinsufficientinformation,astotheexistenceofasbestos-containingmaterialswithintheplannedlimitsofconstruction.ThePre-Co..........
【中国标准分类号】:Q62
【国际标准分类号】:91_100_40
【页数】:45P.;A4
【正文语种】:英语


【英文标准名称】:StandardPracticeforPerformingOutdoorAcceleratedWeatheringTestsofPlasticsUsingConcentratedSunlight
【原文标准名称】:用集中自然光进行塑料的户外加速老化试验的标准实施规程
【标准号】:ASTMD4364-1994
【标准状态】:作废
【国别】:美国
【发布日期】:1994
【实施或试行日期】:
【发布单位】:美国材料与试验协会(ASTM)
【起草单位】:ASTM
【标准类型】:()
【标准水平】:()
【中文主题词】:风化;工艺;环境试验;阳光;塑料
【英文主题词】:weathering;environmentaltesting;sunlighting;processes;plastics
【摘要】:
【中国标准分类号】:G31
【国际标准分类号】:83_080_01
【页数】:4P;A4
【正文语种】:英语