Designation:C279−17StandardSpecificationforChemical-ResistantMasonryUnits1ThisstandardisissuedunderthefixeddesignationC279;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope*1.1Thisspecificationcoverssolid,kilnfiredbrickandtilemadefromclay,shale,ormixturesthereof,suitableforindoorandoutdooruseinmasonryconstructionsubjectedtochemicalenvironments(seeTerminologyC1232).1.2Thebrickandtilecoveredhereinareintendedforuseinchemicalenvironmentswhereresistancetothermalshockmaybeaconsideration.Thebrickandtilearenormallyusedwithchemical-resistantmortars.1.3Thevaluesstatedininch-poundunitsaretoberegardedasstandard.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunitsthatareprovidedforinformationonlyandarenotconsideredstandard.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.1.5Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoTrade(TBT)Committee.2.ReferencedDocuments2.1ASTMStandards:2C20TestMethodsforApparentPorosity,WaterAbsorption,ApparentSpecificGravity,andBulkDensityofBurnedRefractoryBrickandShapesbyBoilingWaterC67TestMethodsforSamplingandTestingBrickandStructuralClayTileC1232TerminologyofMasonryE11SpecificationforWovenWireTestSieveClothandTestSieves3.Terminology3.1Definitions—Fordefinitionsrelatingtochemical-resistantmasonryunits,refertoTerminologyC1232.4.Classification4.1Thephysicalandchemicalpropertiesofbrickandtiledifferfromsuppliertosupplier,mainlybe...
