Designation:B659−90(Reapproved2014)StandardGuideforMeasuringThicknessofMetallicandInorganicCoatings1ThisstandardisissuedunderthefixeddesignationB659;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thisguidecoversthemethodsformeasuringthethick-nessofmanymetallicandinorganiccoatingsincludingelectrodeposited,mechanicallydeposited,vacuumdeposited,anodicoxide,andchemicalconversioncoatings.1.2ThisguideislimitedtotestsconsideredinASTMstandardsanddoesnotcovercertainteststhatareemployedforspecialapplications.1.3ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2B244TestMethodforMeasurementofThicknessofAnodicCoatingsonAluminumandofOtherNonconductiveCoatingsonNonmagneticBasisMetalswithEddy-CurrentInstrumentsB487TestMethodforMeasurementofMetalandOxideCoatingThicknessbyMicroscopicalExaminationofCrossSectionB499TestMethodforMeasurementofCoatingThicknessesbytheMagneticMethod:NonmagneticCoatingsonMagneticBasisMetalsB504TestMethodforMeasurementofThicknessofMetal-licCoatingsbytheCoulometricMethodB530TestMethodforMeasurementofCoatingThicknessesbytheMagneticMethod:ElectrodepositedNickelCoat-ingsonMagneticandNonmagneticSubstratesB567TestMethodforMeasurementofCoatingThicknessbytheBetaBackscatterMethodB568TestMethodforMeasurementofCoatingThicknessbyX-RaySpectrometryB588TestMethodforMeasurementofThicknessofTrans-parentorOpaqueCoatingsbyDouble-BeamInterferenceMicroscopeTechniqueB681TestMethodforMeasurementofThicknessofAnodicCoatingsonAluminumandof...
