Designation:C373−16´1StandardTestMethodsforDeterminationofWaterAbsorptionandAssociatedPropertiesbyVacuumMethodforPressedCeramicTilesandGlassTilesandBoilMethodforExtrudedCeramicTilesandNon-tileFiredCeramicWhitewareProducts1ThisstandardisissuedunderthefixeddesignationC373;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.ε1NOTE—Section5.3.1wasrevisededitoriallyinDecember2016.1.Scope*1.1Thesetestmethodscoversproceduresfordeterminingwaterabsorption,bulkdensity,apparentporosity,andapparentspecificgravityofnon-tilefiredunglazedceramicwhiteware2products,glazedorunglazedceramictiles,andglasstiles.1.2Thevaluesstatedinmetricunitsarenormative.Thevaluesgiveninparenthesesaremathematicalconversionstoinch-poundunitsthatareprovidedforinformationonlyandarenotnormative.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.SignificanceandUse2.1Measurementofdensity,porosity,andspecificgravityisatoolfordeterminingthedegreeofmaturationofaceramicbody,orfordeterminingstructuralpropertiesthatmayberequiredforagivenapplication.3.ApparatusandMaterials3.1Balanceorscale,ofadequatecapacity,suitabletoweighaccuratelyto0.01g(0.00002lb).3.2Oven,capableofmaintainingatemperatureof15065°C(30269°F).3.3WireLoop,Halter,orBasket,capableofsupportingspecimensunderwaterformakingsuspendedmassmeasure-ments.3.4SuspendedMassContainer(ifDeterminationofSus-pendedMassisDesired)—Aglassbeakerorsimilarcontainerofsuchsizeandshapethatthesample,whensuspendedfromthebalancebythewireloop,specifiedin3.3,iscompletelyimmersedinwaterwiththesampleandthewireloopcom-pletelyfreeofcontactwithanypartofthecontainer.3.5StainlessSteelBoili...
