【英文标准名称】:Advancedtechnicalceramics-Mechanicalpropertiesofceramiccompositesathightemperatureunderinertatmosphere-Determinationofflexuralstrength;GermanversionENV12788:1998
【原文标准名称】:高技术陶瓷.在惰性气体中高温下的陶瓷复合材料的机械性能.抗弯强度的测定
【标准号】:DINVENV12788-1998
【标准状态】:作废
【国别】:德国
【发布日期】:1998-08
【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】:解释;纤维复合材料;定义;复合材料;陶瓷;增强材料;挠性;纤维增强的;高级工业陶瓷;抗弯强度;抗弯强度;试验;机械性能
【英文主题词】:mechanicalproperties;ceramics;testing;bendingstrength;advancedtechnicalceramics;flexibility;definition;flexuralstrength;interpretations;fibrereinforced;compositematerials;fibrecomposites;reinforcingmaterial
【摘要】:
【中国标准分类号】:Q32
【国际标准分类号】:81_060_99
【页数】:11P.;A4
【正文语种】:德语


【英文标准名称】:StandardTestMethodforDetectingSealLeaksinPorousMedicalPackagingbyDyePenetration
【原文标准名称】:用染色渗透液检测多孔医疗包装汽封泄漏的标准试验方法
【标准号】:ASTMF1929-1998(2004)
【标准状态】:现行
【国别】:
【发布日期】:1998
【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】:F02.40
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:染色渗透液;多孔包装;汽封泄漏;软包装
【英文主题词】:Dyepenetrant;flexiblepackaging;porouspackaging;sealleaks
【摘要】:Harmfulbiologicalorparticulatecontaminantsmayenterthedevicethroughleaks.Theseleaksarefrequentlyfoundatsealsbetweenpackagecomponentsofthesameordissimilarmaterials.Leaksmayalsoresultfromapinholeinthepackagingmaterial.Thisdyepenetrantprocedureisapplicableonlytoindividualleaksinapackageseal.Thepresenceofanumberofsmallleaks,asfoundinporouspackagingmaterial,whichcouldbedetectedbyothertechniques,willnotbeindicated.Thereisnogeneralagreementconcerningthelevelofleakagethatislikelytobedeleterioustoaparticularpackage.However,sincethesetestsaredesignedtodetectleakage,componentsthatexhibitanyindicationofleakagearenormallyrejected.Sinceleaksmaychangeinsizewithdifferentambientconditions,comparisonsbetweenteststationsarenotconclusive.Thereforethismethodisusuallyemployedasago,no-gotest.Thedyesolutionwillwickthroughanyporousmaterialovertime,butusuallynotwithinthemaximumtimesuggested.Ifwickingdoesoccur,itmaybeverifiedbyobservingtheporoussideofthesubjectsealarea.Thedyewillhavediscoloredthesurfaceofthematerial.Whenpuncturingthepackagingtoallowinjectionofthedyepenetrantsolution,careshouldbetakennottopunctureotherpackagesurfaces.Puncturingofthepackageisfacilitatedifitisdoneadjacenttoadummydeviceinsidethepackage.Thedevicewillprovideatentingeffectthatwillseparatethetwosidesofthepackage,reducingthechanceofaccidentalpunctureofbothsides.1.1Thistestmethoddefinesmaterialsandaprocedurethatwilldetectandlocatealeakequalorgreaterthanachannelformedbya50956;m(0.002in.)wireinpackageedgesealsformedbetweenatransparentfilmandaporoussheetmaterial.Adyepenetrantsolutionisappliedlocallytothesealedgetobetestedforleaks.Aftercontactwiththedyepenetrantforaspecifiedtime,thepackageisvisuallyinspectedfordyepenetration.1.2Thistestmethodisintendedforuseonpackageswithedgesealsformedbetweenatransparentfilmandaporoussheetmaterial.Thistestmethodislimitedtoporousmaterialswhichcanretainthedyepenetrantsolutionandpreventitfromdiscoloringtheentiresealareaforaminimumof20s.Uncoatedpapersareespeciallysusceptibletoleakageandmustbeevaluatedcarefullyfrousewiththistestmethod.1.3Thistestmethodrequiresthatthedyepenetranthavegoodcontrasttotheopaquepackagingmaterial.1.4ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:C30
【国际标准分类号】:55_040
【页数】:3P.;A4
【正文语种】: