【英文标准名称】:StandardTestMethodforMonitoringofAtmosphericCorrosionChambersbyQuartzCrystalMicrobalances
【原文标准名称】:水晶微量天平监测大气腐蚀室的标准试验方法
【标准号】:ASTMB808-2010
【标准状态】:现行
【国别】:
【发布日期】:2010
【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】:腐蚀监测;电导线;监控;压电石英振荡器;污染物气体腐蚀;水晶微量天平(QCM);薄膜蒸发器监测;大气腐蚀分析;电触点材料;气体(大气)
【英文主题词】:corrosionmonitor;Metalelectricalconductors;Monitoring;Piezoelectriccrystaloscillator;Pollutantgasattack;Quartzcrystalmicrobalances(QCM);Thinfilmevaporatormonitor;Atmosphericcorrosionanalysis;Electricalcontactmaterials;Gases(atmospheric)
【摘要】:Corrosionfilmgrowthwiththicknessesvaryingfromamonolayerofatomsupto1x03BC;mcanreadilybemeasuredonacontinuous,real-time,in-situ,basiswithQCMs.Thetestresultsobtainedforthistestmethodareinfluencedbyvariousfactors,includinggeometricaleffects,temperature,humidity,filmthickness,filmmaterials,electrodeconditions,gasesinthecorrosionchamber,atmosphericpressure,andsoforth.Calibrationofcoatedcrystalsandinstrumentationandreproduciblecrystaloperatingconditionsarenecessaryforconsistentresults.1.1Thistestmethodmonitorsthereactivityofagaseoustestenvironmentinwhichmetalsurfaces(forexample,electricalcontacts,assembledprintedwiringboards,andsoforth)andothermaterialssubjecttopollutantgasattackundergoacceleratedatmosphericcorrosiontesting.Thistestmethodisapplicabletothegrowthofadherentcorrosionfilmswhosetotalcorrosionfilmthicknessrangesfromafewatomicmonolayerstoapproximatelyamicrometre.1.2Thetestmethodprovidesadynamic,continuous,in-situ,procedureformonitoringthecorrosionrateincorrosionchambers;theuniformityofcorrosionchambers;andthecorrosionrateondifferentsurfaces.Responsetimeintheorderofsecondsispossible.1.3Withthepropersamples,thequartzcrystalmicrobalance(QCM)testmethodcanalsobeusedtomonitortheweightlossfromasurfaceasaresultofthedesorptionofsurfacespecies(thatis,reductionofanoxideinareducingatmosphere).(AlternativenamesforQCMarequartzcrystaloscillator,piezoelectriccrystaloscillator,orthin-filmevaporationmonitor.)1.4Thistestmethodisnotsufficienttospecifythecorrosionprocessthatmaybeoccurringinachamber,sinceavarietyofpollutantgasesandenvironmentsmaycausesimilarweightgains.1.5Thistestmethodisgenerallynotapplicabletotestenvironmentsinwhichsolidorliquidparticlesaredepositedonthesurfaceofthequartzcrystal.1.6ThevaluesstatedinSIunitsaretoberegardedasstandard.Thevaluesinparenthesesareforinformationonly.1.7Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.ItistheresponsibilityoftheuserofthisstandardtobecomefamiliarwithallhazardsincludingthoseidentifiedintheappropriateMaterialSafetyDataSheet(MSDS)forthisproduct/materialasprovidedbythemanufacturer,toestablishappropriatesafetyandhealthpractices,anddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:H25
【国际标准分类号】:77_060
【页数】:4P.;A4
【正文语种】: