Designation:C329−88(Reapproved2016)StandardTestMethodforSpecificGravityofFiredCeramicWhitewareMaterials1ThisstandardisissuedunderthefixeddesignationC329;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thistestmethodcoversthedeterminationofspecificgravityoffiredceramicwhitewarematerialsunderprescribedconditions.NOTE1—Thistestmethodisnotapplicabletomaterialsattackedbywater.1.2Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2D153TestMethodsforSpecificGravityofPigmentsE11SpecificationforWovenWireTestSieveClothandTestSieves3.SignificanceandUse3.1Measurementofspecificgravityisatoolfordetermin-ingthedegreeofmaturationofaceramicbody.4.ApparatusandMaterials4.1AnalyticalBalanceandWeights.4.2Pycnometers,of50-mLcapacity,consistingofsuitablebottleswithcapillarytubestoppers.4.3Thermometer,calibratedat0.5°Cintervalsintheroomtemperaturerange.4.4DryingOven.4.5WeighingBottle.4.6Desiccator.4.7VacuumSource—Asuitableapparatustoproduceavacuumequivalenttoanabsolutepressureoflessthan1.0-in.(25.4-mm)Hg.4.8DistilledWater,thathasbeenfreshlyevacuated,orboiledandcooled,toremovedissolvedair.5.SamplePreparation5.1Whenpossible,thesamplefortestshallconsistofatleasttwopiecestotaling100to150gtakenfromdifferentportionsofthematerialinsuchawayastoexcludeskinsurfacesinsofaraspossible.Thesampleshallbeselectedsoastoberepresentativeofthematerialtobetested.5.2Thepiecesshallbecrushed,ifnecessary,betweenhardenedsteelsurfaces.Thespecimenshallthenbereducedto25to50gbyquartering,andanymagneticmaterialintroducedbycrushingshallberemoved.Thisspecimenshallbegroundinasuita...
