Designation:E2125−11StandardGuideforMicrocrystalTestinginForensicAnalysisofPhencyclidineandItsAnalogues1ThisstandardisissuedunderthefixeddesignationE2125;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.INTRODUCTIONMicrocrystaltestsareprimarilychemical-precipitationtestsinwhichalightmicroscopeisusedtoobserveanddistinguishthedifferenttypesofcrystalsformed.Thesetestsrequireskillandexpertiseonthepartoftheanalystthatcanbeadequatelygainedonlythroughappropriatetrainingandexperienceintheiruse.Thesetestsshouldnotbeattemptedbythosewhoareunfamiliarwiththemforuseintheanalysisofphencyclidineanditsanalogues.1.Scope1.1Thisguidedescribessomestandardproceduresappli-cabletotheanalysisofphencyclidineanditsanaloguesusingmicrocrystaltests(1-8).21.2Theseproceduresareapplicabletophencyclidmeanditsanalogueswhicharepresentinsoliddosageformorinaliquidform.Theyarenottypicallyapplicabletotheanalysisofphencyclidineanditsanaloguesinbiologicalsamples.1.3ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.4Thisstandardcannotreplaceknowledge,skill,orabilityacquiredthroughappropriateeducation,training,andexperi-enceandshouldbeusedinconjunctionwithsoundprofes-sionaljudgment.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:3E1459GuideforPhysicalEvidenceLabelingandRelatedDocumentationE1492PracticeforReceiving,Documenting,Storing,andRetrievingEvidenceinaForensicScienceLaboratoryE1732TerminologyRelatingtoForensicScienceE2329PracticeforIdentificationofSeizedDrugsE2548GuideforSamplingSeizedDrugsforQualitativeandQuantitat...
