DIN EN 122110-1996 分规范.射频同轴连接器.SMA系列
作者:标准资料网 时间:2024-05-11 15:29:14 浏览:8287
来源:标准资料网
【英文标准名称】:Sectionalspecification:Radiofrequencycoaxialconnectors;seriesSMA;GermanversionEN122110:1993
【原文标准名称】:分规范.射频同轴连接器.SMA系列
【标准号】:DINEN122110-1996
【标准状态】:现行
【国别】:德国
【发布日期】:1996-07
【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】:电气工程;试验;质量;插头;特性;连接尺寸;射频插头;同轴连接器;分规范;电子设备及元件;射频连接器;组件;电子的
【英文主题词】:Coaxialconnectors;Components;Connectingdimensions;Electricplugs;Electricalengineering;Electronic;Electronicequipmentandcomponents;Properties;Quality;Radiofrequencyconnectors;Radio-frequencypl
【摘要】:ThedocumentrelatestosectionalspecificationforradiofrequencycoaxialconnectorsofseriesSMA.
【中国标准分类号】:L23
【国际标准分类号】:33_120_30
【页数】:34P;A4
【正文语种】:德语
【英文标准名称】:StandardGuideforDesigningBiologicalTestswithSediments
【原文标准名称】:设计沉淀物生物试验的标准指南
【标准号】:ASTME1525-2002(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】:E47.03
【标准类型】:(Guide)
【标准水平】:()
【中文主题词】:
【英文主题词】:bioaccumulation;contamination;experimentaldesign;freshwater;saltwater;sediment;toxicity;Bioaccumulation;Biologicaldataanalysis--sediments;Contamination--environmental;Contamination--water;Controlledtestingconditions/environments;Cont
【摘要】:Contaminatedsedimentsmayaffectnaturalpopulationsofaquaticorganismsadversely.Sediment-dwellingorganismsmaybeexposeddirectlytocontaminantsbytheingestionofsedimentsandbytheuptakeofsediment-associatedcontaminantsfrominterstitialandoverlyingwater.Contaminatedsedimentsmayaffectwatercolumnspeciesdirectlybyservingasasourceofcontaminantstooverlyingwatersorasinkforcontaminantsfromoverlyingwaters.Organismsmayalsobeaffectedwhencontaminatedsedimentsaresuspendedinthewatercolumnbynaturalorhumanactivities.Watercolumnspeciesandnonaquaticspeciesmayalsobeaffectedindirectlybycontaminatedsedimentsbythetransferofcontaminantsthroughecosystems(7,8).Theproceduresdescribedinthisguidemaybeusedandadaptedforincorporationinbasicandappliedresearchtodeterminetheecologicaleffectsofcontaminatedsediments.Thesesamemethodsmayalsobeusedinthedevelopmentandimplementationofmonitoringandregulatoryprogramsdesignedtopreventandmanagesedimentcontamination.Sedimenttestswithaquaticorganismscanbeusedtoquantifytheacuteandchronictoxicityandthebioavailabilityofnewandpresentlyusedmaterials.Sedimenttoxicitymayalsoresultfromenvironmentalprocessessuchasammoniageneration,pHshifts,ordissolvedoxygenfluctuation.Inmanycases,considerationoftheadverseeffectsofsediment-associatedcontaminantsisonlyonepartofacompletehazardassessmentofmanufacturedcompoundsthatareapplieddirectlytotheenvironment(forexample,pesticides)andthosereleased(forexample,throughwastewatereffluents)asby-productsfromthemanufacturingprocessorfrommunicipalities(7).Sedimenttestscanbeusedtodevelopexposure-responserelationshipsforindividualtoxicantsbyspikingcleansedimentswithvaryingconcentrationsofatestchemicalanddeterminingtheconcentrationthatelicitsthetargetresponseinthetestorganism(GuideE1391).Sedimenttestscanalsobedesignedtodeterminetheeffectsthatthephysicalandchemicalpropertiesofsedimentshaveonthebioavailabilityandtoxicityofcompounds.Sedimenttestscanprovidevaluableinformationformakingdecisionsregardingthemanagementofcontaminatedsedimentsfromhazardouswastesitesandothercontaminatedareas.Biologicaltestswithsedimentscanalsobeusedtomakedefensiblemanagementdecisionsonthedredginganddisposalofpotentiallycontaminatedsedimentsfromriversandharbors.((7,8),TestMethodE1706.)1.1Asthecontaminationoffreshwaterandsaltwaterecosystemscontinuestobereducedthroughtheimplementationofregulationsgoverningbothpointandnon-pointsourcedischarges,thereisagrowingemphasisandconcernregardinghistoricalinputsandtheirinfluenceonwaterandsedimentquality.Manylocationsinurbanareasexhibitsignificantsedimentcontamination,whichposesacontinualandlong-termthreattothefunctionalconditionofbenthiccommunitiesandotherspeciesinhabitingtheseareas(1).Benthiccommunitiesareanimportantcomponentofmanyecosystemsandalterationsofthesecommunitiesmayaffectwater-columnandnonaquaticspecies.1.2Biologicaltestswithsedimentsareanefficientmeansforevaluatingsedimentcontaminationbecausetheyprovideinformationcomplementarytochemicalcharacterizationsandecologicalsurveys(2).Acutesedimenttoxicitytestscanbeusedasscreeningtoolsintheearlyphaseofanassessmenthierarchythatultimatelycouldincludechemicalmeasurementsorbioaccumulationandchronictoxicitytests.Sedimenttestshavebeenappliedinbothsaltwaterandfreshwaterenvironments【英文标准名称】:Safetyofearth-movingmachinery.Specificationforlaboratoryevaluationsofroll-overandfalling-objectprotectivestructures:thedeflection-limitingvolumeforearth-movingmachinery
【原文标准名称】:土方机械安全.第7部分:倾翻和坠落物保护结构的实验室评定规范:土方机械的变形-极限值
【标准号】:BS6912-7-1992
【标准状态】:作废
【国别】:英国
【发布日期】:1992-10-15
【实施或试行日期】:1992-10-15
【发布单位】:英国标准学会(BSI)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:位置;设备安全;试验条件;准确度;职业安全;安全装置;实验室试验;物料搬运设备;土方机械;倾翻保护装置;试验标样;安全措施;坠落物保护装置
【英文主题词】:
【摘要】:
【中国标准分类号】:P97
【国际标准分类号】:53_100
【页数】:8P;A4
【正文语种】:英语
