Designation:E1272−02(Reapproved2012)StandardSpecificationforLaboratoryGlassGraduatedCylinders1ThisstandardisissuedunderthefixeddesignationE1272;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thisspecificationcoversrequirementsforglassgradu-atedcylindersforprecisionandgeneralpurposegradessuitableforlaboratorypurposes.1.1.1ClassA—Eachcylinderofprecisiongradeshallbemarkedwiththeletter“A”tosignifycompliancewithappli-cableconstructionandaccuracyrequirements.Cylindersmaybemarkedwithanidentificationnumber(serialnumber)attheoptionofthemanufacturer.1.1.2ClassB—GeneralpurposecylindersareofthesamebasicdesignasClassAcylinders.However,volumetrictoler-ancesforClassBcylindersshallbewithintwicethespecifiedrangeallowedforClassAcylinders.Thesecylindersneednotbemarkedwiththeirclassdesignation.1.1.3ProductwithastatedcapacitynotlistedinthisstandardmaybespecifiedinclassAtolerancewhenproductconformstothetolerancerangeofthenextsmallervolumetricstandardproductlistedinTable1.2.ReferencedDocuments2.1ASTMStandards:2E438SpecificationforGlassesinLaboratoryApparatusE542PracticeforCalibrationofLaboratoryVolumetricApparatusE675SpecificationforInterchangeableTaper-GroundStop-cocksAndStoppersE920SpecificationforCommerciallyPackagedLaboratoryApparatusE921SpecificationforExportPackagedLaboratoryAppa-ratusE1133PracticeforPerformanceTestingofPackagedLabo-ratoryApparatusforUnitedStatesGovernmentProcure-mentsE1157SpecificationforSamplingandTestingofReusableLaboratoryGlassware3.Classification3.1Cylindersshallbeinthefollowingstyles:3.1.1StyleI—Beadedlipwithpourspout,3.1.2StyleII—Groundstandardtaper()neck,or3.1.3StyleIII—Beadedlipwithpourspoutandreinforcingbeadneartop.4.Requirements4.1StyleIcylindersshallbecalibratedeither“todeliver”or“tocontain.”StyleIIandStyleIIIcylindersshall...
