Designation:D5145−09(Reapproved2014)StandardTestMethodsforNonvolatileandPigmentContentofElectrocoatBaths1ThisstandardisissuedunderthefixeddesignationD5145;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thesetestmethodscoverthecharacterizationofelec-trocoatbathsthroughthedeterminationofnonvolatilecontentofinorganicpigmentcontent.1.2ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2D1193SpecificationforReagentWaterD2832GuideforDeterminingVolatileandNonvolatileCon-tentofPaintandRelatedCoatingsE180PracticeforDeterminingthePrecisionofASTMMethodsforAnalysisandTestingofIndustrialandSpe-cialtyChemicals(Withdrawn2009)33.SummaryofTestMethod3.1Twospecimensareaccuratelyweighedintoaluminumweighingdishes.Thedishesareplacedinanovenat110°Cfor1h,reweighedtoobtainthenonvolatilemattercontentand,ifrequired,placedinamufflefurnaceat500°Cfor2handweighedathirdtimetoobtaintheinorganicpigmentcontent.4.SignificanceandUse4.1Thenonvolatilecontentandpigmentcontentaremea-suresoftotalsolidsandinorganicpigmentsolids,respectively,inelectrocoatpaints.Inadditiontoproductionqualitycontrol,thesepropertiesareimportantinmaintainingelectrocoatbathsintheoptimumrange.4.2OthertestmethodsfordeterminingnonvolatilecontentofpaintandpaintrelatedmaterialsaredescribedinGuideD2832.5.Apparatus5.1AnalyticalBalancewithasensitivityof0.1mg.5.2AluminumWeighingDishes,57mmindiameterand17mmdeep.Thesecommercialdishesmaycontainalubricantusedduringtheirmanufacture.Thisshouldberemov...
