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ASTM B808-2010 水晶微量天平监测大气腐蚀室的标准试验方法

作者:标准资料网 时间:2024-05-13 16:51:03  浏览:9547   来源:标准资料网
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【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】:


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Product Code:SAE AMS5070
Title:Steel, Bars and Forgings, 0.18 - 0.23C (SAE 1022)
Issuing Committee:Ams E Carbon And Low Alloy Steels Committee
Scope:This specification covers a carbon steel in the form of bars, forgings, and forging stock.【英文标准名称】:ManifoldPapersforPermanentRecords
【原文标准名称】:永久记录用复写纸
【标准号】:ASTMD3208-1994
【标准状态】:作废
【国别】:美国
【发布日期】:1994
【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】:ASTM
【标准类型】:()
【标准水平】:()
【中文主题词】:复印纸;办公室设备;拷贝;纸;记录
【英文主题词】:officeequipment;copyingpapers;recording;paper;copies
【摘要】:
【中国标准分类号】:Y32
【国际标准分类号】:85_060
【页数】:
【正文语种】:英语



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