ASTM B748-1990(2010) 扫描电子显微镜测量横截面测定金属涂层厚度的标准试验方法

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【英文标准名称】:StandardTestMethodforMeasurementofThicknessofMetallicCoatingsbyMeasurementofCrossSectionwithaScanningElectronMicroscope
【原文标准名称】:扫描电子显微镜测量横截面测定金属涂层厚度的标准试验方法
【标准号】:ASTMB748-1990(2010)
【标准状态】:现行
【国别】:
【发布日期】:1990
【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】:B08.10
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:Thistestmethodisusefulforthedirectmeasurementofthethicknessesofmetalliccoatingsandofindividuallayersofcompositecoatings,particularlyforlayersthinnerthannormallymeasuredwiththelightmicroscope.Thistestmethodissuitableforacceptancetesting.Thistestmethodisforthemeasurementofthethicknessofthecoatingoveraverysmallareaandnotoftheaverageorminimumthicknessperse.Accuratemeasurementsbythistestmethodgenerallyrequireverycarefulsamplepreparation,especiallyatthegreatermagnifications.Thecoatingthicknessisanimportantfactorintheperformanceofacoatinginservice.1.1Thistestmethodcoversthemeasurementofmetalliccoatingthicknessesbyexaminationofacrosssectionwithascanningelectronmicrosope(SEM).1.2ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:A29
【国际标准分类号】:17_040_20
【页数】:4P.;A4
【正文语种】: