Designation:D2331−08(Reapproved2013)StandardPracticesforPreparationandPreliminaryTestingofWater-FormedDeposits1ThisstandardisissuedunderthefixeddesignationD2331;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thesepracticesprovidedirectionsforthepreparationofthesampleforanalysis,thepreliminaryexaminationofthesample,andmethodsfordissolvingtheanalyticalsampleorselectivelyseparatingconstituentsofconcern.1.2Thegeneralpracticesgivenherecanbeappliedtoanalysisofsamplesfromavarietyofsurfacesthataresubjecttowater-formeddeposits.However,theinvestigatormustresorttoindividualexperienceandjudgementinapplyingtheseprocedurestospecificproblems.1.3Thepracticesincludethefollowing:SectionsPreparationoftheAnalyticalSample8PreliminaryTestingoftheAnalyticalSample9DissolvingtheAnalyticalSample101.4ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.Foraspecificwarningstatement,seeNote2.2.ReferencedDocuments2.1ASTMStandards:2D887PracticesforSamplingWater-FormedDepositsD932TestMethodforIronBacteriainWaterandWater-FormedDepositsD933PracticeforReportingResultsofExaminationandAnalysisofWater-FormedDepositsD934PracticesforIdentificationofCrystallineCompoundsinWater-FormedDepositsByX-RayDiffractionD1129TerminologyRelatingtoWaterD1193SpecificationforReagentWaterD1245PracticeforExaminationofWater-FormedDepositsbyChemicalMicroscopyD2332PracticeforAnalysisofWater-FormedDepositsbyWavelength-DispersiveX-RayFluorescenceE11SpecificationforWovenWireTestSieveClothandTestSieves3.Terminology3.1Fordefini...
