Designation:D6808−02(Reapproved2018)´1StandardPracticeforCompetencyRequirementsofReferenceMaterialProducersforWaterAnalysis1ThisstandardisissuedunderthefixeddesignationD6808;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.ε1NOTE—TheKeywordssectionwasaddededitoriallyinAugust2018.1.Scope1.1Thispracticeestablishesthegeneralrequirementswithwhichareferencematerials(RM)producerhastodemonstratethatitoperates,ifitistoberecognizedascompetenttoproduceRMsusedforwateranalysis.1.2Thispracticeestablishesthequalitysystemrequire-mentsinaccordancewithwhichwatersRMsshallbepro-duced.ItisintendedtobeusedaspartofaRMproducer’sgeneralqualityassurance(QA)procedures.RMproducersshalldefinetheirscopeintermsoftheapplication,themeasurementmethodsusedinthehomogeneity,stability,andcharacterizationstudies.1.3ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafety,health,andenvironmentalpracticesanddeter-minetheapplicabilityofregulatorylimitationspriortouse.1.5Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoTrade(TBT)Committee.2.ReferencedDocuments2.1ASTMStandards:2D1129TerminologyRelatingtoWaterD6362PracticeforCertificatesofReferenceMaterialsforWaterAnalysis2.2ISODocuments:3ISO/IEC17025:1999GeneralRequirementsfortheCompe-tenceofCalibrationandTestingLaboratoriesISO8402:1994QualityManagementandQualityAssurance—VocabularyISO10012-1:1992QualityAssuranceRequirementsforMeasuri...
