Designation:E2053–00StandardGuideforPlanning,CarryingOut,andReportingTraceableChemicalAnalysesofMetals,Ores,andRelatedMaterials1ThisstandardisissuedunderthefixeddesignationE2053;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(e)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1ThisguidesetsaprotocolforgeneratingandreportingmeasurementsthataretraceabletoSIunitsorCertifiedReferenceMaterialsinlaboratoriesthatservethemetalsindustries.1.2Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-tionofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:E135StandardTerminologyRelatingtoAnalyticalChem-istryforMetals,Ores,andRelatedMaterials22.2OtherDocuments:ISO/IEC17025:1999—GeneralRequirementsfortheCompetenceofTestingandCalibrationLaboratories3ISOGuide30—TermsandDefinitionsUsedinConnectionwithReferenceMaterials3InternationalVocabularyofBasicandGeneralTermsinMetrology[VIM];ISO:2nded.,199333.Terminology3.1Definitions—Exceptasdefinedasfollows,fordefini-tionsoftermsusedinthisguide,refertoTerminologyE135.3.2certifiedreferencematerial—referencematerial,accom-paniedbyacertificate,oneormoreofwhosepropertyvaluesarecertifiedbyaprocedurewhichestablisheditstraceabilitytoanaccuraterealizationoftheunitinwhichthepropertyvaluesareexpressed,andforwhicheachcertifiedvalueisaccompa-niedbyanuncertaintyatastatedlevelofconfidence.(ISOGuide30:1992)3.3traceability—propertyoftheresultofameasurementorthevalueofastandardwherebyitcanberelated,withastateduncertainty,tostatedreferences,usuallynationalorinterna-tionalstandards,throughanunbrokenchainofcomparisons.(ISOGuide30:1992)3.4Uncertainty(ofmeasurement)—parameter,associatedwiththeresultofameasurement,thatcharacterizesth...
