Designation:E1378−99(Reapproved2016)StandardSpecificationforLaboratoryGlassMultipleNeckDistilling/BoilingFlasks1ThisstandardisissuedunderthefixeddesignationE1378;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thisspecificationprovidesstandarddimensionalre-quirementsformultipleneckdistilling/boilingflasks.1.2ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.2.ReferencedDocuments2.1ASTMStandards:2E438SpecificationforGlassesinLaboratoryApparatusE671SpecificationforMaximumPermissibleThermalRe-sidualStressinAnnealedGlassLaboratoryApparatusE676SpecificationforInterchangeableTaper-GroundJointsE920SpecificationforCommerciallyPackagedLaboratoryApparatusE921SpecificationforExportPackagedLaboratoryAppa-ratusE1133PracticeforPerformanceTestingofPackagedLabo-ratoryApparatusforUnitedStatesGovernmentProcure-mentsE1157SpecificationforSamplingandTestingofReusableLaboratoryGlassware3.Classification3.1Flasksshallbeofthefollowingtypesandsizes.3.1.1TypeI—Standardtaper($¯)necks,equalheight:500mL1000mL2000mL3000mL5000mL3.1.2TypeII—Threetoolednecks,unequalheight:250mL500mL1000mL2000mL3000mL5000mL3.1.3TypeIII—Threestandardtaper($¯)necks,unequalheight:250mL300mL500mL1000mL2000mL3000mL5000mL12000mL3.1.4TypeIV—Threestandardtaper($¯)necks,equalheight:250mL500mL1000mL2000mL3000mL5000mL3.1.5TypeV—Threetoolednecks,angled:200mL500mL1000mL3.1.6TypeVI—Threestandardtaper($¯)necks,angled:25mL50mL100mL200mL250mL300mL500mL1000mL3.1.7TypeVII—Twostandardtaper($¯)necks,unequalheight:500mL1000mL2000mL5000mL1ThisspecificationisunderthejurisdictionofASTMCommitteeE41onLaboratoryApparatusandisthedirectresponsibilityofSubcommitteeE41.01onLaboratoryWareandSupplies.CurrenteditionapprovedSept.1,2016.PublishedSeptember2016.Originallyapp...