Designation:C285−10(Reapproved2015)´1StandardTestMethodsforSieveAnalysisofWet-MilledandDry-MilledPorcelainEnamel1ThisstandardisissuedunderthefixeddesignationC285;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.ε1NOTE—Sections4and10correctededitoriallyinMay2015.INTRODUCTIONThesetestmethodsprovidearapidmeansofdeterminingthefinenessofglassfritinwet-ordry-milledporcelainenamelcoatingmaterialsbysieveanalysis.Finenessisakeypredicatoroffusibility,tearing,gloss,opacity,suspensionintheslip,andeaseofsprayingbecauseofthedirectrelationshiptosurfacearea.1.Scope1.1Thesetestmethodscoverthedeterminationofthefinenessoffritinwet-ordry-milledporcelainenamelsandotherceramiccoatingsformetalsbymeansoftheNo.200(75-µm)orNo.325(45-µm)sieve.1.2Thetwomethodsappearasfollows:SectionsMethodA—RefereeMethodMethodB—RoutineMethod4to910to141.3MethodAisintendedforusewherearefereemethodofhigheraccuracyisrequired,whileMethodBisintendedtomeettheneedsofnormalenamelplantproductioncontroloperationswherearapid,simplifiedmethodofsievetestingisrequired.Theaccuracyofthesimplifiedmethodhasprovedtobeentirelyadequateforthisuse.Thesimplifiedtest,however,isnotrecommendedwherehighaccuracyisrequired.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2E11SpecificationforWovenWireTestSieveClothandTestSieves3.SignificanceandUse3.1Thefinenessofthefrithasadirectbearingonmanyofitsproperties,suchasfusibility,tearing,gloss,opacity,suspen-sionintheslip,andeaseofspraying.METHODA—REFEREEMETHOD4.Apparatus4.1Balance—Thebalanceorscaleshallbeofatleast500-gcapacity,andaccurateto0.1g.4.2Sieve...
