Designation:C71−12StandardTerminologyRelatingtoRefractories1ThisstandardisissuedunderthefixeddesignationC71;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thisterminologycoverstermsparticularlyrelatedtorefractoriesandencompassesrawmaterials,manufacture,finishedproducts,applications,andtestingprocedures.1.2Whenanyofthedefinitionsinthisterminologyarequotedorpublishedoutofcontext,editoriallyinsertthelimitingphrase“inrefractories”afterthedashfollowingthetermtoproperlylimitthefieldofapplicationofthetermanddefinition.2.ReferencedDocuments2.1ASTMStandards:2C24TestMethodforPyrometricConeEquivalent(PCE)ofFireclayandHighAluminaRefractoryMaterialsC181TestMethodforWorkabilityIndexofFireclayandHigh-AluminaRefractoryPlasticsC401ClassificationofAluminaandAlumina-SilicateCastableRefractoriesC416ClassificationofSilicaRefractoryBrickC456TestMethodforHydrationResistanceofBasicBricksandShapesC492TestMethodforHydrationofGranularDead-BurnedRefractoryDolomiteC860TestMethodforDeterminingtheConsistencyofRefractoryCastableUsingtheBall-In-HandTestC909PracticeforDimensionsofaModularSeriesofRe-fractoryBrickandShapes3.SignificanceandUse3.1Thisterminologyensuresthattermspeculiartorefrac-toriesareadequatelydefinedsothatotherstandardsinwhichsuchtermsareusedcanbeunderstoodandinterpretedprop-erly.3.2Thisterminologyisusefultothosewhoarenotconver-santwiththetermsrelatedtorefractories.However,itisalsoareadyreferenceforthosedirectlyassociatedwithrefractoriestoresolvedifferencesandensurecommonalityofusage,particularlyinthepreparationofASTMstandards.3.3Althoughthisterminologyisintendedtopromoteuni-formityintheusageoftermsrelatedtorefractories,itcanneverbecompletebecausenewtermsareconstantlyarising.Theexistenceofthisterminologydoesnotprecludetheuseormisuseofanyterminanothercontext.4.Te...
