Designation:C212−17StandardSpecificationforStructuralClayFacingTile1ThisstandardisissuedunderthefixeddesignationC212;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.ThisstandardhasbeenapprovedforusebyagenciesoftheU.S.DepartmentofDefense.1.Scope*1.1Thisspecificationcoversstructuralclayloadbearingfacingtile.Structuralfacingtilearetiledesignedforuseininteriorandexteriorunplasteredwallsandpartitionsofbuild-ings.1.2Thepropertyrequirementsofthisspecificationapplyatthetimeofpurchase.Theuseofresultsfromtestingoftileextractedfrommasonrystructuresfordeterminingconfor-manceornonconformancetothepropertyrequirements(Sec-tion6)ofthisstandardisbeyondthescopeofthisspecification.1.3Tilecoveredbythisspecificationaremanufacturedfromclay,shale,orsimilarnaturallyoccurringsubstancesandsubjectedtoaheattreatmentatelevatedtemperatures(firing).Theheattreatmentmustdevelopsufficientfiredbondbetweentheparticulateconstituentstoprovidethestrengthanddura-bilityrequirementsofthisspecification.(SeefiringandfiredbondinTerminologyC1232.)1.4Thetextofthisspecificationreferencesnotesandfootnoteswhichprovideexplanatorymaterial.Thesenotesandfootnotes(excludingthoseintablesandfigures)shallnotbeconsideredasrequirementsofthespecification.1.5Thevaluesstatedininch-poundunitsaretoberegardedasstandard.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunitsthatareprovidedforinformationonlyandarenotconsideredstandard.1.6Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoTrade(TBT)Committee.2.ReferencedDocuments2.1ASTMStandards:2C67TestMethodsforSamplingandTestingBrickandStructuralClayTileC123...
