Designation:E1092−91(Reapproved2016)StandardSpecificationforGlassMicroFolinPipet,Disposable1ThisstandardisissuedunderthefixeddesignationE1092;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1ThisspecificationcoversaglassdisposablemicroFolinpipetsuitableforuseinmicrotechniquesforestimationofbloodsugarbytheFolinmethod.1.2ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.3Thefollowingprecautionarystatementpertainsonlytothetestmethodportion,Section8,ofthisspecification.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimita-tionspriortouse.2.ReferencedDocuments2.1ASTMStandards:2E438SpecificationforGlassesinLaboratoryApparatus2.2ISOStandard:1769LaboratoryGlassware—Pipettes—ColorCoding33.Terminology3.1DefinitionsofTermsSpecifictoThisStandard:3.1.1accuracy,n—theexpecteddistributionofmeanvol-umesaroundthestatedvolume.3.1.2coeffıcientofvariation,n—theexpecteddistributionofindividualvolumesaroundthemeanvolume.3.1.3disposable,n—microFolinpipetsthatareintendedtobeusedonceonlyandthendiscarded.NOTE1—Suchpipetswillonlybeexpectedtoprovidetheirspecifiedperformanceduringtheoriginaloperation.4.Classification4.1Thisspecificationcoversonlyoneglasspipetasillus-tratedinFig.X1.1.5.MaterialsandManufacture5.1Thepipetshallbemadeofborosilicateglass,Type1,ClassB,orsodalimeglass,Type2,inaccordancewithSpecificationE438.6.PhysicalProperties6.1Design—ThemicroFolinpipetshallbemadeofonepiececonstructionglasstubingthatisstraightanduniformborewithapointpulledononeendtothedimensionsasspecifiedinFig.X1.1.6.2Dimensions—Thepipetshallbemadeoftubingwithanoutsidediame...
