Designation:D6132−13StandardTestMethodforNondestructiveMeasurementofDryFilmThicknessofAppliedOrganicCoatingsUsinganUltrasonicCoatingThicknessGage1ThisstandardisissuedunderthefixeddesignationD6132;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope*1.1Thistestmethoddescribestheuseofultrasonicfilmthicknessgagestomeasureaccuratelyandnondestructivelythedryfilmthicknessoforganiccoatingsappliedoverasubstrateofdissimilarmaterial.Measurementsmaybemadeonfieldstructures,oncommerciallymanufacturedproducts,oronlaboratorytestspecimens.Thesetypesofgagescanaccuratelymeasurethedryfilmthicknessoforganiccoatingsonavarietyofsubstratessuchasconcrete,wood,wallboard,plastic,fibercompositesandmetal.1.2Thistestmethodisnotapplicabletocoatingsthatwillbereadilydeformableunderloadofthemeasuringinstrumentastheinstrumentprobeisplaceddirectlyonthecoatingsurfacetotakeareading.1.3Theeffectiverangeofinstrumentsusingtheprincipleofultrasonicsislimitedbygagedesign.Athicknessrangeof8µmto7.60mm(0.3to300mils)hasbeendemonstrated.1.4ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.5Thisstandarddoesnotpurporttoaddressthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2D823PracticesforProducingFilmsofUniformThicknessofPaint,Varnish,andRelatedProductsonTestPanelsD1005TestMethodforMeasurementofDry-FilmThick-nessofOrganicCoatingsUsingMicrometersD4138PracticesforMeasurementofDryFilmThicknessofProtectiveCoatingSystemsbyDestructive,Cross-SectioningMeansE177PracticeforUseoftheTermsPrecisionandBiasinASTMTestMethodsE691PracticeforConductinganInterlaboratoryStudytoDetermi...
