NSF 372-2011 Drinking water system components-Lead

AESOPCOVERSHEETFORIMAGEDOCUMENTSAESOP10770;ISSUE2;STATUS-PUBLISHED;EFFECTIVE10FEB2012;AUTHORITYJANEWILSONCOVERSHEETNOTINCLUDEDINPAGENUMBERINGNSFInternationalStandard/AmericanNationalStandardNSF/ANSI372-2011DrinkingWaterSystemComponents-LeadContentNOTFORDISTRIBUTIONORSALENSFInternational,anindependent,not-for-profit,non-governmentalorganization,isdedicatedtobeingtheleadingglobalproviderofpublichealthandsafety-basedriskmanagementsolutionswhileservingtheinterestsofallstakeholders.ThisStandardissubjecttorevision.ContactNSFtoconfirmthisrevisioniscurrent.UsersofthisStandardmayrequestclarificationsandinterpretations,orproposerevisionsbycontacting:Chair,JointCommitteeonDrinkingWaterAdditivesc/oNSFInternational789NorthDixboroRoad,P.O.Box130140AnnArbor,Michigan48113-0140USAPhone:[phone]Telex:753215NSFINTLFAX:[phone]E-mail:[e-mail]:–2011NSFInternationalStandard/AmericanNationalStandardDrinkingwatersystemcomponents-LeadcontentStandardDeveloperNSFInternationalNSFInternationalBoardofDirectorsDesignatedasanANSIStandardJuly31,2011AmericanNationalStandardsInstituteNOTFORDISTRIBUTIONORSALEiiPreparedbyTheNSFJointCommitteeonDrinkingWaterAdditivesRecommendedforAdoptionbyTheNSFCouncilofPublicHealthConsultantsAdoptedOctober2010RevisedJuly2011PublishedbyNSFInternationalP.O.Box130140,AnnArbor,Michigan48113-0140,USAFororderingcopiesorformakinginquirieswithregardtothisStandard,pleasereferencethedesignation“NSF/ANSI372-2011.”Copyright2012NSFInternationalPreviouseditions©2010Unlessotherwisespecified,nopartofthispublicationmaybereproducedorutilizedinanyformorbyanymeans,electronicormechanical,includingphotocopyingandmicrofilm,withoutpermissioninwritingfromNSFInternational.PrintedintheUnitedStatesofAmerica.NOTFORDISTRIBUTIONORSALEiiiDisclaimers1NSF,inperformingitsfunctionsinaccordancewithitsobjectives,doesnotassumeorundertaketodischargeanyresponsibilityofthemanufactureroranyotherparty.TheopinionsandfindingsofNSFrepresentitsprofessionaljudgment.NSFshallnotberesponsibletoanyonefortheuseoforrelianceuponthisStandardbyanyone.NSFshallnotincuranyobligationorliabilityfordamages,includingconsequentialdamages,arisingoutoforinconnectionwiththeuse,interpretationof,orrelianceuponthisStandard.NSFStandardsprovidebasiccriteriatopromotesanitationandprotectionofthepublichealth.ProvisionsformechanicalandelectricalsafetyhavenotbeenincludedinthisStandardbecausegovernmentalagenciesorothernationalstandards-settingorganizationsprovidesafetyrequirements.ParticipationinNSFStandardsdevelopmentactivitiesbyregulatoryagencyrepresentatives(federal,local,state)shallnotconstitutetheiragency'sendorsementofNSForanyofitsStandards.PreferenceisgiventotheuseofperformancecriteriameasurablebyexaminationortestinginNSFStandardsdevelopmentwhensuchperformancecriteriamayreasonablybeusedinlieuofdesign,materials,orconstructioncriteria.Theillustrations,ifprovided,areintendedtoassistinunderstandingtheiradjacentstandardrequirements.However,theillustrationsmaynotincludeallrequirementsforaspecificproductorunit,nordotheyshowtheonlymethodoffabricatingsucharrangements.Suchpartialdrawingsshallnotbeusedtojustifyimproperorincompletedesignandconstruction.Unlessotherwisereferenced,theannexesarenotconsideredanintegralpartofNSFStandards.Theannexesareprovidedasgeneralguidelinestothemanufacturer,regulatoryagency,user,orcertifyingorganization.1TheinformationcontainedinthisDisclaimerisnotpartofthisAmericanNationalStandard(ANS)andhasnotbeenprocessedinaccordancewithANSI’srequirementsforanANS.Therefore,thisDisclaimermaycontainmaterialthathasnotbeensubjectedtopublicrevieworaconsensusprocess.Inaddition,itdoesnotcontainrequirementsnecessaryforconformancetotheStandard.NOTFORDISTRIBUTIONORSALEivThispageisintentionallyleftblank.NOTFORDISTRIBUTIONORSALEvContents1 Purpose,scope,andnormativereferences............................................................................................1 1.1 Purpose............................................................................................................................................1 1.2 Scope...............................................................................................................................................1 1.3 Normativereferences.......................................................................................................................1 1.4 Significantfigures.............................................................................................................................1 2 Definitions...............................................................................................................................................2 3 Generalrequirements.............................................................................................................................2 3.1 Allcomponents≤0.25%...................................................................................................................2 3.2 Anycomponents0.25%...