Designation:C207−06(Reapproved2011)StandardSpecificationforHydratedLimeforMasonryPurposes1ThisstandardisissuedunderthefixeddesignationC207;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.ThisstandardhasbeenapprovedforusebyagenciesoftheDepartmentofDefense.1.Scope1.1Thisspecificationcoversfourtypesofhydratedlime.TypesNandSaresuitableforuseinmortar,inscratchandbrowncoatsofcementplaster,forstucco,andforadditiontoportland-cementconcrete.TypesNAandSAareair-entrainedhydratedlimesthataresuitableforuseinanyoftheaboveuseswheretheinherentpropertiesoflimeandair-entrainmentaredesired.Thefourtypesoflimesoldunderthisspecificationshallbedesignatedasfollows:1.1.1TypeN—Normalhydratedlimeformasonrypurposes.1.1.2TypeS—Specialhydratedlimeformasonrypurposes.1.1.3TypeNA—Normalair-entraininghydratedlimeformasonrypurposes.1.1.4TypeSA—Specialair-entraininghydratedlimeformasonrypurposes.NOTE1—TypeS,specialhydratedlime,andTypeSA,specialair-entraininghydratedlime,aredifferentiatedfromTypeN,normalhydratedlime,andTypeNA,normalair-entraininghydratedlime,principallybytheirabilitytodevelophigh,earlyplasticityandhigherwaterretentivity,andbyalimitationontheirunhydratedoxidecontent.NOTE2—Fornormal(TypeN)andspecial(TypeS)finishinghydratedlime,refertoSpecificationC206.NOTE3—Somebuildingcodesprohibittheuseofair-entrainingmaterialsinmortar,becauseoftheaccompanyingreductioninbondandcompressivestrength.Whereincreasedfreeze-thawresistanceisimportant,air-entrainingmaybebeneficial.Air-entraininglimeshouldnotbeusedasafinishinglime.NOTE4—Forlimeputty,refertoSpecificationC1489.1.2Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplicabil-ityofregulatorylimi...
