Designation:C1529−06a(Reapproved2011)StandardSpecificationforQuicklime,HydratedLime,andLimestoneforEnvironmentalUses1ThisstandardisissuedunderthefixeddesignationC1529;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope*1.1Thisspecificationcoverslimeandlimestoneproductsandby-productalkalinematerialssuitableforenvironmentalusesasshowninTable1.1.2Thebuyershalldesignatetheuse,aslistedinTable1,andmayspecifyoneormoreofthetypedesignationslistedbelowTable1.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatoryrequirementspriortouse.2.ReferencedDocuments2.1ASTMStandards:2C25TestMethodsforChemicalAnalysisofLimestone,Quicklime,andHydratedLimeC50PracticeforSampling,SamplePreparation,Packaging,andMarkingofLimeandLimestoneProductsC110TestMethodsforPhysicalTestingofQuicklime,HydratedLime,andLimestoneC400TestMethodsforQuicklimeandHydratedLimeforNeutralizationofWasteAcidD6249GuideforAlkalineStabilizationofWastewaterTreat-mentPlantResiduals3.Terminology3.1By-productalkalinematerials—By-productlime(suchaslimekilndust)orothersecondarymaterials(suchashigh-limeflyash)thatcontainadequateamountsandtypesofcalciumand/ormagnesiumoxidesorhydroxidestomeetthephysicalandchemicalrequirementsinthisspecification.Itisadvisedthatthespecificcompositions,physicalproperties,performancecharacteristics,andanticipatedvariabilitiesofsuchmaterialsbeevaluatedfortheserviceintended.4.ChemicalCompositionandPhysicalProperties4.1Therequirementsforquicklime,hydratedlime,andlimestoneforthedesignatedendusesareasshowninTable1,andareonthebasisoftheweightofsampletakenattheplaceofmanufacture.5.GeneralRequirements5.1Quicklimeshallbereasonablyfree...