Designation:D153−84(Reapproved2020)StandardTestMethodsforSpecificGravityofPigments1ThisstandardisissuedunderthefixeddesignationD153;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.ThisstandardhasbeenapprovedforusebyagenciesoftheU.S.DepartmentofDefense.1.Scope1.1Thesetestmethodscoverthreeproceduresfordetermin-ingthespecificgravityofpigments,asfollows:TestMethodA—ForRoutineTestingofSeveralSamplesSimultaneously.TestMethodB—ForTestsRequiringGreaterAccuracythanTestMethodA.TestMethodC—ForRapidandAccurateTestingofSingleSamples.1.2Thespecificgravityvalueobtainedbytheseproceduresmaybeusedwiththeweightofadrypigmenttodeterminethevolumeoccupiedbythepigmentinacoatingformulation.1.3ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafety,health,andenvironmentalpracticesanddeter-minetheapplicabilityofregulatorylimitationspriortouse.Forspecifichazardstatements,seeSections5,11,and15.1.5Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoTrade(TBT)Committee.2.ReferencedDocuments2.1ASTMStandards:2D1193SpecificationforReagentWater3.PurityofReagents3.1PurityofWater—ReferencetowatershallbeunderstoodtomeanreagentwaterasdefinedbyTypeIIofSpecificationD1193.TESTMETHODA—FORROUTINETESTINGOFSEVERALSAMPLESSIMULTANEOUSLY4.ApparatusandMaterials4.1Pycnometer—Apycnometer(Note1)havinga50-mLcapacity.NOTE1—TheWeldtypewiththecapsealontheoutsideoftheneckofthebottleispreferredbeca...
