Designation:D153−84(Reapproved2014)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-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.Forspecifichazardstatements,seeSections5,11,and15.2.ReferencedDocuments2.1ASTMStandards:2D1193SpecificationforReagentWater3.PurityofReagents3.1PurityofWater—ReferencetowatershallbeunderstoodtomeanreagentwaterasdefinedbyTypeIIofSpecificationD1193.TESTMETHODA—FORROUTINETESTINGOFSEVERALSAMPLESSIMULTANEOUSLY4.ApparatusandMaterials4.1Pycnometer—Apycnometer(Note1)havinga50-mLcapacity.NOTE1—TheWeldtypewiththecapsealontheoutsideoftheneckofthebottleispreferredbecausethereislessdangeroftrappingairjustunderthecapillarytubethanwithtypeshavingthegroundglasssealontheinsideoftheneck.4.2WaterBath,maintainedat2560.5°Candequippedwithastirringdevice.4.3Manometer,open-orclosed-tube(seePartfoftheapparatusforTestMethodC),madeofglasstubing6mmindiameter,fittedwithrubberpr...
