Designation:G120−15StandardPracticeforDeterminationofSolubleResidualContaminationbySoxhletExtraction1ThisstandardisissuedunderthefixeddesignationG120;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thispracticedescribesaprocedureforthedetermina-tionofresidualcontaminationinmaterialstobeusedwithinorincontactwithhardwarerequiringahighlevelofcleanliness,suchascomponentsforoxygenservice,bySoxhletextraction.1.2Thispracticemaybeusedforextractingnonvolatileandsemivolatileresiduesfromsolidssuchasnewandusedgloves,newandusedwipers,contaminatedtestspecimensorcontrolcoupons,smallpieceparts(metallicornonmetallic),etc.Whenusedwithproposedconsumablecleaningmaterials(wipers,gloves,etc.),thispracticemaybeusedtodeterminethepotentialoftheproposedsolventtoextractcontaminants(plasticizers,residualdetergents,brighteners,etc.)fromthecleaningmaterialanddepositthemonthesurfacebeingcleaned.1.3Thispracticeisnotsuitablefortheevaluationofparticulatecontamination.1.4ThevaluesstatedinSIunitsarestandard.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2D1193SpecificationforReagentWaterE1235TestMethodforGravimetricDeterminationofNon-volatileResidue(NVR)inEnvironmentallyControlledAreasforSpacecraftE1560TestMethodforGravimetricDeterminationofNon-volatileResidueFromCleanroomWipersE1731TestMethodforGravimetricDeterminationofNon-volatileResiduefromCleanroomGlovesF331TestMethodforNonvolatileResidueofSolventEx-tractfromAerospaceComponents(UsingFlashEvapora-tor)G93PracticeforCleaningMethodsandCleanlinessLevelsforMaterialandEquipmentUsedinOxygen-EnrichedEnvironm...
