Designation:D1245−11StandardPracticeforExaminationofWater-FormedDepositsbyChemicalMicroscopy1ThisstandardisissuedunderthefixeddesignationD1245;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thispracticedescribesaprocedurefortheexaminationofwater-formeddepositsbymeansofchemicalmicroscopy.Thispracticemaybeusedtocomplementothermethodsofexaminationofwater-formeddepositsasrecommendedinPracticesD2331oritmaybeusedalonewhennootherinstrumentationisavailableorwhenthesamplesizeisverysmall.1.2ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2D887PracticesforSamplingWater-FormedDepositsD1129TerminologyRelatingtoWaterD1193SpecificationforReagentWaterD2331PracticesforPreparationandPreliminaryTestingofWater-FormedDepositsD2332PracticeforAnalysisofWater-FormedDepositsbyWavelength-DispersiveX-RayFluorescenceD3483TestMethodsforAccumulatedDepositioninaSteamGeneratorTube3.Terminology3.1Definitions—Fordefinitionsoftermsinthispracticerelatingspecificallytowaterandwater-formeddeposits,refertoTerminologyD1129.3.2DefinitionsofTermsSpecifictoThisStandard:3.2.1Certaintermsinthispracticethatrelatespecificallytochemicalmicroscopyaredescribedasfollows:3.2.2anisotropic,adj—havingdifferentopticalpropertiesindifferentopticalplanes.3.2.2.1Discussion—Theseplanesarereferredtoasthealpha,beta,andomegaaxes.3.2.3Beckeline,n—afaint,halo-likelinethatsurroundsacrystalwhenthecrystalismountedinanoilofdifferentrefractiveindex.3.2.3.1Discussion—TheBeckelineincrea...
