Designation:D1186–01StandardTestMethodsforNondestructiveMeasurementofDryFilmThicknessofNonmagneticCoatingsAppliedtoaFerrousBase1ThisstandardisissuedunderthefixeddesignationD1186;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(e)indicatesaneditorialchangesincethelastrevisionorreapproval.ThisstandardhasbeenapprovedforusebyagenciesoftheDepartmentofDefense.1.Scope1.1Thesetestmethodscoverthenondestructivemeasure-mentofthedryfilmthicknessofnonmagneticcoatingsappliedoveraferrousbasematerialusingcommerciallyavailabletestinstruments.Thetestmethodsareintendedtosupplementmanufacturers’instructionsforthemanualoperationofthegagesandarenotintendedtoreplacethem.Theycovertheuseofinstrumentsbasedonmagneticmeasuringprinciplesonly.TestMethodAprovidesforthemeasurementoffilmsusingmechanicalmagneticpull-offgagesandTestMethodBpro-videsforthemeasurementoffilmsusingmagneticelectronicgages.1.2Thesetestmethodsarenotapplicabletocoatingsthatwillbereadilydeformableundertheloadofthemeasuringinstruments,astheinstrumentprobemustbeplaceddirectlyonthecoatingsurfacetotakeareading.1.3ThevaluesgiveninSIunitsofmeasurementaretoberegardedasthestandard.Thevaluesinparenthesesareforinformationonly.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:D609PracticeforPreparationofCold-RolledSteelPanelsforTestingPaint,Varnish,ConversionCoatings,andRelatedCoatingProducts2D823PracticesforProducingFilmsofUniformThicknessofPaint,Varnish,andRelatedProductsonTestPanels22.2SteelStructuresPaintingCouncilStandard:SSPC-PA2MeasurementofDryPaintThicknesswithMag-neticGages3TESTMETHODA—MAGNETICPULL-OFFGAGES3.SummaryofTestMethod3.1Instrumentscomplyingwith...
