IEC 60539-2 Edition 1.1-2010 直热式负温度系数热敏电阻器.第2部分:分规范.表面安装负温度系数热敏电阻器
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【英文标准名称】:Directlyheatednegativetemperaturecoefficientthermistors.Part2:Sectionalspecification.Surfacemountnegativetemperaturecoefficientthermistors
【原文标准名称】:直热式负温度系数热敏电阻器.第2部分:分规范.表面安装负温度系数热敏电阻器
【标准号】:IEC60539-2Edition1.1-2010
【标准状态】:现行
【国别】:国际
【发布日期】:2010-11-01
【实施或试行日期】:2010-11-01
【发布单位】:国际电工委员会(IX-IEC)
【起草单位】:IEC
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:ThispartofIEC60539isapplicabletosurfacemountdirectlyheatednegativetemperaturecoefficientthermistors,typicallymadefromtransitionmetaloxidematerialswithsemiconductingproperties.Thesethermistorshavemetallizedconnectingpadsorsolderingstripsandareintendedtobemounteddirectlyontosubstratesforhybridcircuitsorontoprintedboards.
【中国标准分类号】:L13
【国际标准分类号】:31_040_30
【页数】:46P.;A4
【正文语种】:
【英文标准名称】:StandardTestMethodforWoundClosureStrengthofTissueAdhesivesandSealants
【原文标准名称】:组织胶粘剂和封闭剂的伤口闭合强度的标准试验方法
【标准号】:ASTMF2458-2005(2010)
【标准状态】:现行
【国别】:美国
【发布日期】:2005
【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】:F04.15
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:adhesivestrength;cohesivestrength;tissueadhesive;woundclosurestrength;Tissueadhesives
【摘要】:Materialsanddevicesthatfunctionatleastinpartbyadheringtolivingtissuesarefindingincreasinguseinsurgicalprocedureseitherasadjunctstosuturesandstaples,orasfrankreplacementsforthosedevicesinawidevarietyofmedicalprocedures.Whilethenatureandmagnitudeoftheforcesinvolvedvariesgreatlywithindicationandwithpatientspecificcircumstances,allusesinvolvetosomeextenttheabilityofthematerialtoresistimposedmechanicalforces.Therefore,themechanicalpropertiesofthematerials,andinparticulartheadhesiveproperties,areimportantparametersinevaluatingtheirfitnessforuse.Inaddition,themechanicalpropertiesofagivenadhesivecompositioncanprovideausefulmeansofdeterminingproductconsistencyforqualitycontrolorasameansfordeterminingtheeffectsofvarioussurfacetreatmentsonthesubstratepriortouseofthedevice.Thecomplexityandvarietyofindividualapplicationsfortissueadhesivedevices,evenwithinasingleindicateduse(surgicalprocedure,whichitselfmayvarydependingonphysicalsiteandclinicalintention)issuchthattheresultsofasingletensilestrengthtestisnotsuitablefordeterminingallowabledesignstresseswithoutthoroughanalysisandunderstandingoftheapplication,adhesivebehaviors,andclinicalindications.Thistestmethodmaybeusedforcomparingadhesivesorbondingprocessesforsusceptibilitytofatigue,modeoffailure,andenvironmentalchanges,butsuchcomparisonsmustbemadewithgreatcautionsincedifferentadhesivesmayresponddifferentlytovaryingconditions.Acorrelationofthetestmethodresultswithactualadhesiveperformanceinlivehumantissuehasnotbeenestablished.1.1Thistestmethodcoversameansforcomparisonofwoundclosurestrengthoftissueadhesivesusedtohelpsecuretheappositionofsofttissue.Withtheappropriatechoiceofsubstrate,itmayalsobeusedforpurposesofqualitycontrolinthemanufactureofmedicaldevicesusedastissueadhesives.1.2ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:C48
【国际标准分类号】:11_120_20
【页数】:5P.;A4
【正文语种】:英语
【英文标准名称】:Determinationofdensityofpaints,varnishesandsimilarcoatingmaterialsbythevibrationmethod
【原文标准名称】:油漆.涂料和类似的涂覆材料.密度的测定.振荡法
【标准号】:DIN53217-5-1991
【标准状态】:作废
【国别】:德国
【发布日期】:1991-03
【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】:清漆;检验;共振频率;校准实施;涂料;密度;液体;测量仪器;测量;密度测量;试验设备;材料试验;振动;振荡;气溶胶;测量、试验与仪器;密度测定法;数学计算;覆层材料;抽样方法;试验
【英文主题词】:
【摘要】:
【中国标准分类号】:G50
【国际标准分类号】:87_040
【页数】:4P;A4
【正文语种】:德语
