Designation:D6126/D6126M−21StandardSpecificationforHFC-23(Trifluoromethane,CHF3)1ThisstandardisissuedunderthefixeddesignationD6126/D6126M;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1ThisspecificationcoverstherequirementsforHFC-23asafirefightingmedium.1.2ThisspecificationdoesnotaddressthefirefightingequipmentorhardwarethatemploysHFC-23ortheconditionsofemployingsuchequipment(forexample:handshields,fixedinstallations,etc.).1.3ThisspecificationdoesnotaddressthestorageortransportationofHFC-23Storagehandling,andtransportationissuesareaddressedinPracticeD6127.1.4ThevaluesstatedineitherSIunitsorinch-poundunitsaretoberegardedseparatelyasstandard.Thevaluesstatedineachsystemarenotnecessarilyexactequivalents;therefore,toensureconformancewiththestandard,eachsystemshallbeusedindependentlyoftheother,andvaluesfromthetwosystemsshallnotbecombined.1.5Thefollowingsafetyhazardscaveatpertainstothetestmethodsportion,Section6,ofthisspecification:Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafety,health,andenviron-mentalpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.1.6Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoTrade(TBT)Committee.2.ReferencedDocuments2.1ASTMStandards:2D6127PracticeforHandling,Transportation,andStorageofHFC-23(Trifluoromethane,CHF3)D6806PracticeforAnalysisofHalogenatedOrganicSol-ventsandTheirAdmixturesbyGasChromatography2.2U.S.GovernmentStandards:349CFRPart172HazardousMaterialsTable,SpecialProvisions,Hazardo...
