EN 61508-7-2010 电气/电子/可编程序电子安全相关系统的功能安全.第7部分:技术和措施综述(IEC61508-7-2010);德文版本EN61508-7-2010
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来源:标准资料网
【英文标准名称】:Functionalsafetyofelectrical/electronic/programmableelectronicsafety-relatedsystems-Part7:Overviewoftechniquesandmeasures(IEC61508-7:2010);GermanversionEN61508-7:2010
【原文标准名称】:电气/电子/可编程序电子安全相关系统的功能安全.第7部分:技术和措施综述(IEC61508-7-2010);德文版本EN61508-7-2010
【标准号】:EN61508-7-2010
【标准状态】:现行
【国别】:
【发布日期】:2011-02
【实施或试行日期】:2011-02-01
【发布单位】:欧洲标准学会(EN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:Controltechnology;Electriccontrolequipment;Electrical;Electricalengineering;Electricalequipment;Electricalsafety;Electronic;Electronicengineering;Electronicsystems;Functionalefficiency;Informationtechnology;ITsecurity;Processmeasuringandcontroltechnology;Programmable;Reliability;Reliabilityassurance;Safety;Safetydevices;Safetyengineering;Safetyrequirements;Safetysystems;Software;Specification(approval)
【摘要】:
【中国标准分类号】:L04
【国际标准分类号】:35_240_50
【页数】:162P;A4
【正文语种】:英语
【英文标准名称】:StandardPracticeforEvaluatingAdhesionofInstalledWeatherproofingSealantJoints
【原文标准名称】:评价已安装上的防风雨的密封接头粘结性的标准实施规程
【标准号】:ASTMC1521-2009e1
【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】:C24.30
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:
【英文主题词】:adhesivefailure;cohesivefailure;fieldadhesion;flap;probingtool;tail;Adhesion--sealants;Installation--roofing/waterproofing;Weathering(sealants)
【摘要】:Manyparameterscontributetotheoverallperformanceofasealantapplication.Someofthemostsignificantparametersaresealantbeadsizeandconfiguration,jointmovement,qualityofworkmanship,thequalityoftheadhesivebond,andthequalityofthesealantmaterial.Asealantusuallyfailstoperformasaweathersealwhenitexperiencescohesiveoradhesivefailure.Ifasealantbeadfails,anevaluationofthetotaljointmovementmaybeneededtodetermineifthejointsealantwasstrainedbeyonddesignorifthesealantfailedwithindesignparameters.Ifasealantbeadfailsadhesively,thereisnostraightforwardprocedurefordeterminingthecause.Theadhesivefailuremaybeduetoworkmanship,thespecificsurfacepreparationused,thespecificsealantused,poorx201C;installedx201D;jointdesign,poorbondchemistryandothercauses.Becauseofthecomplexnatureoftheperformanceofasealantbead,anunderstandingofthequalityoftheadhesivebondisinstrumentalinanyevaluationofsealantperformance.Itiscriticalthatthetestproceduresusedtrulyevaluatethequalityoftheadhesivebondanddonotsimplytakeadvantageofthetearresistanceofthesealant.Thismethoddoesnotevaluatetheperformanceofasealantjointasaweatherseal.Itonlyevaluatesthecharacteristicsoftheadhesivebondrelativetothecohesivestrengthofthesealantinaparticularinstallation.Sinceanyfailuresthatresultfromuseofthistestmethodareintentionallyinduced,theydonotnecessarilymeanthatthesealantjointwillnotperformasaweatherseal.Theresultsofthesemethodsaremostusefulinidentifyingsealantjointswithpooradhesion.Thecontinuousinspectionprocedureisalsousefulintheidentificationofplacesofpoorjointconfiguration.Obviouscohesivefailuresarealsoidentified.Theresultsofthesemethodscanbeusedtoassessthelikelyperformanceofthesealantjointandtocompareperformanceagainstothersealantjoints.Thenondestructivemethodsaremosteffectivewhilethesealantisinastateofextensionduetomildorlowtemperatures.Theyareleasteffectiveduringhightemperaturewhenthesealantisinacompressedcondition.1.1Thispracticedescribesdestructiveandnondestructiveprocedures.1.2Thedestructiveprocedurestressesthesealantinsuchawayastocauseeithercohesiveoradhesivefailureofthesealantorcohesivefailureofthesubstratewheredeficientsubstrateconditionsexist.Theobjectiveistocharacterizetheadhesive/cohesiveperformanceofthesealantonthespecificsubstratebyapplyingwhateverstrainisnecessarytoeffectfailureofthesealantbead.Itispossiblethatthestrainappliedtothesealantbeadmayresultinthefailureofadeficientsubstratebeforeeffectingafailureinthesealant.Note18212;Thedestructiveprocedurerequiresimmediaterepairofthesealantbead.Appropriatematerialsandequipmentshouldbeavailableforthispurpose.Note28212;Sealantformulationsmayfailincohesionoradhesionwhenproperlyinstalled,andtestedbythismethod.Thesealantmanufacturershouldbeconsultedtodeterminetheappropriateguidelinesforusingthismethod.1.3Thenondestructiveprocedureplacesstrainonthesealantandastressontheadhesivebond.Thoughtermednondestructive,thisproceduremayresultinanadhesivefailureofadeficientsealantbead,butshouldnotcauseacohesivefailureinthesealant.Theresultsofthisprocedureshouldbeeitheradhesivefailureornofailure.Note38212;Thenondestructiveproceduremayreq......
【中国标准分类号】:Q27
【国际标准分类号】:83_060
【页数】:7P.;A4
【正文语种】:英语
【英文标准名称】:Informationtechnology-Codedgraphiccharactersetforuseinthepreparationofdocumentsusedinelectrotechnologyandforinformationinterchange(IEC61286:2001,modified);GermanversionEN61286:2002
【原文标准名称】:信息技术.电工及信息交换用文件的编制用编码图形字符集
【标准号】:DINEN61286-2003
【标准状态】:现行
【国别】:德国
【发布日期】:2003-09
【实施或试行日期】:2003-09-01
【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;信息交换;编码;数据处理;数据传送;信息技术;信息交流;文献;图形符号;代码表示;字符集;数据代码
【英文主题词】:Charactersets;Codedrepresentation;Datacodes;Dataprocessing;Datatransfer;Documents;Electricalengineering;Encoding;Graphicsymbols;Informationexchange;Informationinterchange;Informationtechnolo
【摘要】:
【中国标准分类号】:L71
【国际标准分类号】:29_020;35_040
【页数】:22P;A4
【正文语种】:德语
