Designation:E1763–06StandardGuideforInterpretationandUseofResultsfromInterlaboratoryTestingofChemicalAnalysisMethods1ThisstandardisissuedunderthefixeddesignationE1763;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thisguidecoversprocedurestohelpataskgroupinterpretinterlaboratorystudy(ILS)statisticstostateprecisionandaccuracyofatestmethodandmakejudgmentsconcerningitsrangeofuse.1.2Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2D6512PracticeforInterlaboratoryQuantitationEstimateE135TerminologyRelatingtoAnalyticalChemistryforMetals,Ores,andRelatedMaterialsE1601PracticeforConductinganInterlaboratoryStudytoEvaluatethePerformanceofanAnalyticalMethodE1763GuideforInterpretationandUseofResultsfromInterlaboratoryTestingofChemicalAnalysisMethodsE1914PracticeforUseofTermsRelatingtotheDevelop-mentandEvaluationofMethodsforChemicalAnalysis3.Terminology3.1Fordefinitionsoftermsusedinthisguide,refertoTerminologyE135.3.2Fordescriptionsoftermsusedinthisguide,refertoPracticeE1914.4.SignificanceandUse4.1AwrittentestmethodissubjectedtoanILStoevaluateitsperformance.TheILSproducesasetofstatisticalestimatesthatdependuponthemethod,butalsoareinfluencedbythelaboratoriesandtestmaterialsinvolvedinthestudy.Forthatreason,theILStaskgroupmustinterprettheseestimates,aidedbythisguideandusinganalyticaljudgment,todecideifthemethodissuitabletobeballotedforpublicationasastandard.Thetaskgroupmayusethisguidetohelpthempreparetheprecisionandbiasstatementsthatarearequiredpartofthemethod.5.InterlaboratoryStudies5.1Thefollowingstatementisrequiredineachtestmethod:5.1.1...
