Designation:D820−93(Reapproved2016)StandardTestMethodsforChemicalAnalysisofSoapsContainingSyntheticDetergents1ThisstandardisissuedunderthefixeddesignationD820;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thesetestmethodscoverproceduresforthechemicalanalysisofsoapscontainingsyntheticdetergents.1.2Theanalyticalproceduresappearinthefollowingorder:SectionsMoistureandOtherMatterVolatileat105°C(OvenMethod)5and6FreeAlkaliorFreeAcid7and8Anhydrous,Salt-Free,SodaSoap9–12Alcohol-SolubleMatter13and14MatterInsolubleinWater15and15TotalAlkalinityofMatterInsolubleinAlcohol(AlkalineSalts)16and17SodiumSilicate18–20Phosphates21–28Phosphate(ColorimetricMethodUsingMolybdenumBlue)29–34UnsaponifiedandUnsaponifiableMatter35–39FreeFattyMatter40ChloridesinAlcohol-SolubleMatter41–43Rosin(McNicollMethod)44–47SyntheticDetergent(byDifference)48Neutral,InorganicSalts491.3ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyproblems,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2D216MethodofTestforDistillationofNaturalGasoline(Withdrawn1988)3D459TerminologyRelatingtoSoapsandOtherDetergentsD875MethodforCalculatingofOlefinsandAromaticsinPetroleumDistillatesfromBromineNumberandAcidAbsorption(Withdrawn1984)3D1193SpecificationforReagentWaterD1768TestMethodforSodiumAlkylbenzeneSulfonateinSyntheticDetergentsbyUltravioletAbsorptionD2357forQualitativeClassificationofSurfactantsbyInfra-redAbsorptionD2358TestMethodforSeparationofActiveIngredientfromSurfactantandSyndetCompositionsD3049TestMethodforSyntheticAnion...
