Designation:D2067−97(Reapproved2013)StandardTestMethodforCoarseParticlesinPrintingInkDispersions1ThisstandardisissuedunderthefixeddesignationD2067;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thistestmethodcoversthedeterminationoftheweightconcentrationofcoarseparticlesinprintinginkdispersionsbysieveretention.1.2Thistestmethodisapplicabletoprintinginks,flushedpigments,andotherpigmentdispersionsthatcontainparticleslargerthan45µm.Withproperchoiceofsolvent,itisapplicablebothtopasteandliquidinks.NOTE1—ThistestmethodissimilarinprincipletoTestMethodsD185.Forparticlesunder25µm,seeTestMethodD1316.1.3ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.1.4Thisstandarddoesnotpurporttoaddressthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2D185TestMethodsforCoarseParticlesinPigmentsD235SpecificationforMineralSpirits(PetroleumSpirits)(HydrocarbonDryCleaningSolvent)D1316TestMethodforFinenessofGrindofPrintingInksBytheNPIRIGrindometerE11SpecificationforWovenWireTestSieveClothandTestSievesE145SpecificationforGravity-ConvectionandForced-VentilationOvensE691PracticeforConductinganInterlaboratoryStudytoDeterminethePrecisionofaTestMethod3.SummaryofTestMethod3.1A50-gspecimenofthetestdispersionisdiluted,ifnecessary,withareducingvarnish,mixedwith200gofmineralspiritsorothermutuallyagreeablesolvent,mixedinapaintshakerfor30min,andpassedthroughatared325-meshwireclothsieve.Thesieveisdriedinanovenandreweighed.Theresidueisreportedeitherasapercentageorinpartspermillionofthespecimen.3.2Thenatureofthecoarseparticlesmaybeidentifiedthroughtheuse...
