DIN EN 60950-1997 信息技术设备安装的安全性
时间:2024-05-16 16:15:15 来源: 标准资料网 作者：标准资料网 阅读：8016
【英文标准名称】:Safetyofinformationtechnologyequipment(IEC60950:1991+A1:1992+A2:1993+A3:1995+A4:1996,modified);GermanversionEN60950:1992+A1:1993+A2:1993+A3:1995+A4:1997
【原文标准名称】:信息技术设备安装的安全性
【标准号】:DINEN60950-1997
【标准状态】:作废
【国别】:德国
【发布日期】:1997-11
【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】:规范(验收);电击;工作场所安全;信息技术;办公机器;计算机;定义;电气安全;危害;安全要求;安全工程;信息处理;检验;试验;职业安全;个人计算机;电气工程;数据处理设备;低电压;安全;电气设备;办公室设备
【英文主题词】:
【摘要】:
【中国标准分类号】:L60
【国际标准分类号】:35_020;35_260
【页数】:189P;A4
【正文语种】:德语
【英文标准名称】:Informationtechnology-Systemandsoftwarelifecycleprocesses-Reuseprocesses
【原文标准名称】:信息技术.软件寿命周期过程.再使用过程
【标准号】:IEEE1517-2010
【标准状态】:现行
【国别】:美国
【发布日期】:2010
【实施或试行日期】:
【发布单位】:美国电气电子工程师学会(US-IEEE)
【起草单位】:IEEE
【标准类型】:()
【标准水平】:()
【中文主题词】:计算机;数据处理;定义;信息技术;寿命;重新使用;软件;软件技术;规范(验收);系统开发;系统工程
【英文主题词】:Computers;Dataprocessing;Definitions;Informationtechnology;Life(durability);Reuse;Software;Softwaretechniques;Specification(approval);Systemdevelopment;Systemengineering
【摘要】:
【中国标准分类号】:L77
【国际标准分类号】:35_080
【页数】:51P;A4
【正文语种】:英语
【英文标准名称】:StandardTestMethodforStrengthPropertiesofAdhesiveBondsinShearbyCompressionLoading
【原文标准名称】:压缩荷载法测定胶粘剂的抗剪切强度特性用标准试验方法
【标准号】:ASTMD905-2003
【标准状态】:现行
【国别】:
【发布日期】:2003
【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】:D14.30
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:胶粘剂;粘结力;压力荷载;剪切强度;试验;粘结强度
【英文主题词】:adhesive;bond;compression;compressionloading;shear;strengthproperties
【摘要】:Itcannotbeassumedthatthistestmethodmeasuresthetrueshearstrengthoftheadhesivebond.Manyfactorsinterfereorbiasthemeasurementincludingthestrengthofthewood,thespecimen,thesheartooldesignsthemselves,andtherateofloading.4.1.1Woodfailureisverycommoninjointsmadewithstrongadhesives.Althoughhighwoodfailureisnormallydesired,whenitoccursthemeasuredstrengthislowerthanthetrueadhesivebondstrength.4.1.2Stressconcentrationsatthenotchesofthespecimentendtolowerthemeasuredstrength.Inasimilartestfortheshearstrengthofsolidwood,TestMethodsD143,theseeffectsareselfcorrectingsothatthemeasuredstrengthisclosetothetrueshearstrengthofthewood.Byanalogythesamemaybetrueinthistestmethod,however,otherfactorsarealsoinvolvedandmayaltertherelationship.4.1.3Therateofloadingaffectsthestrengthofanadhesivebondaccordingtotheadhesive’rheologicalproperties.Themoreviscoelasticorplastictheadhesive,thegreatereffect.Thermosettingadhesiveslikeurea-andphenol-formaldehydeareelastic.Theirbondstrengthscanbemeasuredoverarangeofloadingratefrom0.038to1.27cm/min(0.015to0.5in./min)withnoapparentaffect.Thermoplasticadhesiveslikepolyvinylacetate,hotmelts,andelastomer-basedadhesivesexhibitabroadrangeofelastic,viscoelastic,andplasticbehaviors.Theirbondstrengthswillbeaffectedtovaryingdegreesbychangingtheloadingrate.Generally,increasingtherate,increasesthemeasuredstrength.Thistestmethodissuitableforproductresearchanddevelopment,qualifyingadhesivesinaccordancewithcertainproductorperformancespecifications,andmonitoringbondingprocesscontrol.Thistestmethodmaybesuitableforcomparingandselectingadhesives,however,suchcomparisonsmustbemadewithcautionsincethemeasuredstrengthofsomeadhesivesmaybedifferentindifferenttypesofjoints.Strengthvaluesobtainedbythistestmethodarenotsuitableasdesignshearstrengthsvalueswithoutadjustmentbycertainengineeringdesignfactors.1.1Thistestmethodcoversthedeterminationofthecomparativeshearstrengthsofadhesivebondsusedforbondingwoodandothersimilarmaterials,whentestedonastandardspecimenunderspecifiedconditionsofpreparation,conditioning,andloadingincompression.Thistestmethodisintendedprimarilyasanevaluationofadhesivesforwood.1.2ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareprovidedforinformationpurposesonly.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:G38
【国际标准分类号】:
【页数】:5P.;A4
【正文语种】: