Designation:E2043−99(Reapproved2012)StandardTestMethodforNonvolatileMatterofAgriculturalAdjuvantSolutionsbyThermogravimetry1ThisstandardisissuedunderthefixeddesignationE2043;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thistestmethodcoversthedeterminationofthenon-volatilematterofagriculturaltankmixadjuvantsolutionsbythermogravimetry.1.2ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2E473TerminologyRelatingtoThermalAnalysisandRhe-ologyE1131TestMethodforCompositionalAnalysisbyThermo-gravimetryE1519TerminologyRelatingtoAgriculturalTankMixAd-juvants3.Terminology3.1Definitions:3.1.1nonvolatilematter,n—thematterremainingafterheat-inganagriculturaladjuvantsolutionat5062.5°Cfor16h.4.SummaryofTestMethod4.1Thistestmethodisanempiricaltechniqueusingther-mogravimetryinwhichthemassofanagriculturaladjuvant,heatedatacontrolledrateinanappropriateenvironment,isrecordedasafunctionoftimeandtemperature.Nonvolatilematteristhemassremainingafterheatingataspecifictimeandtemperature.5.SignificanceandUse5.1Thistestmethodisintendedforuseinqualitycontrol,materialscreening,andrelatedproblemsolvingwhereanonvolatilecontentisdesiredoracomparisoncanbemadewithaknownmaterialofthesametype.5.2Theparametersdescribedmaybealteredtosuitaparticularanalysis,providedthechangesarenotedinthereport.6.Apparatus6.1AluminumWeighingDishes,flatbottom,70mLcapac-ity.6.2AnalyticalBalance,withasensitivityof0.01g.6.3Desiccator.6.4DryingOven,gravityconvection-type,capableo...
