BS PD 6682-6-2009 集料.第6部分:土木工程和道路建造用松散的和液力粘合的混合料用集料.BSEN13242使用指南
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【英文标准名称】:Aggregates–Part6:Aggregatesforunboundandhydraulicallyboundmaterialsforuseincivilengineeringworksandroadconstruction–GuidanceontheuseofBSEN13242
【原文标准名称】:集料.第6部分:土木工程和道路建造用松散的和液力粘合的混合料用集料.BSEN13242使用指南
【标准号】:BSPD6682-6-2009
【标准状态】:现行
【国别】:英国
【发布日期】:2009-11-30
【实施或试行日期】:2009-11-30
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:ThispartofPD6682givesrecommendationsandguidanceontheuseintheUKofBSEN3242:2002+A1,whichspecifiesthepropertiesofaggregatesobtainedbyprocessingnatural,manufacturedorrecycledmaterialsforhydraulically-boundandunboundmaterialsforcivilengineeringworkandroadconstruction.
【中国标准分类号】:Q13
【国际标准分类号】:91_100_15;93_080_40;93_010
【页数】:34P.;A4
【正文语种】:英语
【英文标准名称】:Fixed,verticalroadtrafficsigns-Part2:Transilluminatedtrafficbollards(TTB);EnglishversionofDINEN12899-2:2008-02
【原文标准名称】:固定、立式道路交通信号.第2部分:透射交通柱
【标准号】:DINEN12899-2-2008
【标准状态】:现行
【国别】:德国
【发布日期】:2008-02
【实施或试行日期】:
【发布单位】:德国标准化学会(DE-DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:CE标记;颜色;柱;合格;建筑;定义;设计;尺寸;特点;固定件;制导系统;公路交通信号;夹持装置;室内照明;照明系统;负荷;亮度;亮度系数;作标记;标记;数学计算;性能;特性;反射的;耐力;反光;公路建设;道路安全;交通标志;道路运输;使用安全;信号系统;规范(验收);固定的;测试;公差(测量);交通柱;交通控制系统;交通信号;运输安全
【英文主题词】:CEmarking;Colour;Columns;Conformity;Construction;Definition;Definitions;Design;Dimensions;Features;Fixings;Guidancesystems;Highwaytrafficsignal;Holdings;Indoorlighting;Lightingsystems;Loading;Luminance;Luminancefactor;Marking;Marks;Mathematicalcalculations;Performance;Properties;Reflective;Resistance;Retroreflecting;Roadconstruction;Roadsafety;Roadsigns;Roadtransport;Safetyofuse;Signalsystems;Specification(approval);Stationary;Testing;Tolerances(measurement);Trafficbollards;Trafficcontrolsystem;Trafficsignals;Trafficsigns;Transportationsafety
【摘要】:ThisPart2ofEN12899specifiesrequirementsfornewtransilluminatedtrafficbollards(TTBs)includingtheirfixing,whichmayincorporatetrafficsigns(type1TTB)ormaysupporttrafficsigns(type2TTB)tobeusedintrafficcirculationareas.Itcoversperformancerequirementsandtestmethods.ColorimetricandretrorefiectivepropertiesaswellasluminanceoftransilluminatedilluminatedportionsarespecifiedtakingintoaccountCIErecommendations.StructuralrequirementsforTTBsincludeperformanceunderstaticanddynamicloading.Provisionismadeforsafetyinuse,includingvehicleimpact.Devicesofsimilarfunction,butwithouttransilluminationorlessthan600mminheight,arenotcovered.NOTEFoundationsarenotspecifiedinthisstandardbutshouldbeadequatetosupporttheloadstobecarried.Unlessotherwisestated,clausesinthisstandardapplytobothtype1andtype2TTBs.
【中国标准分类号】:Q84
【国际标准分类号】:93_080_30
【页数】:28P.;A4
【正文语种】:英语
【英文标准名称】:StandardTestMethodforCoulometricReductionofSurfaceFilmsonMetallicTestSamples
【原文标准名称】:在金属试样上表面薄膜的电量(库仑)减少的标准试验方法
【标准号】:ASTMB825-2002(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】:B02.11
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:atmosphericcorrosion;atmospherictestevaluation;cathodicreduction;controlcouponevaluation;corrosionfilmanalysis;environmentaltesting;monitoringenvironmentaltests;Corrosion--metals/alloys;Coulometry--metallicmaterials;Cathodicreduction
【摘要】:Thepresenttrendinenvironmentaltestingofmaterialswithelectricallyconductivesurfacesistoproduce,underacceleratedlaboratoryconditions,corrosionandfilm-formingreactionsthataresimilartothosethatcausefailuresinserviceenvironments.Inmanyoftheseproceduresthepartsundertestareexposedfordaysorweekstocontrolledquantitiesofbothwatervaporandpollutantgases,whichmaybepresentinextremelydiluteconcentrations.Note28212;DescriptionsofsuchtestscanbefoundinPracticeB827.Manyoftheseenvironmentaltestmethodsrequiremonitoringoftheconditionswithinthechamberduringthetestinordertoconfirmthattheintendedenvironmentallyrelatedreactionsareactuallytakingplace.Themostcommontypeofmonitorconsistsofcopper,silver,orothermetalliccouponsthatareplacedwithinthetestchamberandthatreactwiththecorrosiveenvironmentinmuchthesamewayasthesignificantsurfacesofthepartsundertest.Inpractice,aminimumnumberofcontrolcouponsareplacedineachspecifiedlocation(seeTestMethodB810)withinthechamberforaspecifiedexposuretime,dependingupontheseverityofthetestenvironment.Attheendofthistimeinterval,themetalsamplesareremovedandanalyzedbythecoulometricreductionprocedure.Othercorrosionfilmevaluationtechniquesformetalliccouponsarealsoavailable.Themostcommonoftheseismassgain,whichisnondestructivetothesurfacefilms,butislimitedtothedeterminationofthetotalamountofadditionalmassacquiredbythemetalasaresultoftheenvironmentalattack.Note38212;Detailedinstructionsforconductingsuchweighings,aswellascouponcleaningandsurfacepreparationprocedures,areincludedaspartofTestMethodB810.Note48212;Somesurfaceanalyticaltechniques(suchasX-raymethods)canprovidenondestructiveidentificationofsomecompoundsinthefilms,butsuchmethods,forexample,X-raydiffraction,canmissamorphouscompoundsandcompoundspresentinquantitieslessthan5%ofthetarnishfilmvolume.Withthecoulometrictechnique,itispossibletoresolvethecomplextotalfilmintoanumberofindividualcomponents(Fig.1)sothatcomparisonscanbemade.Thisresolvingpowerprovidesafingerprintcapabilityforidentifyingsignificantdeviationsfromintendedtestconditions,andacomparisonofthecorrosivecharacteristicsofdifferentenvironmentalchambersandofdifferenttestrunswithinthesamechamber.Thecoulometricreductionprocedurecanalsobeusedintestdevelopmentandintheevaluationoftestsamplesthathavebeenexposedatindustrialorotherapplicationenvironments(6).However,foroutdoorexposures,someconstraintsmayhavetobeputontheamountandtypeofcorrosionproductsallowed,particularlythoseinvolvingmoisturecondensationandthepossiblelossoffilmsduetoflaking(alsosee4.9and8.3.2).Inlaboratoryenvironmentaltesting,thecoulometric-reductionprocedureisofgreatestutilityafterrepeatedcharacterizationsofagivencorrosiveenvironmenthavebeenmadetoestablishacharacteristicreductioncurveforthatenvironment.Thesemultiplerunsshouldcomefromboththeuseofmultiplespecimenswithinagiventestexposureaswellasfromseveralconsecutivetestrunswiththesametestconditions.Thecoulometric-reductionprocedureisdestructiveinthatthetarnishfilmsaretransformedduringtheelectrochemicalreductionprocess.Nondestructiveev.........
【中国标准分类号】:H21
【国际标准分类号】:25_220_01
【页数】:8P.;A4
【正文语种】:英语
