ISO／DIS 23655-1：2020.docx

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1、DRAFTINTERNATIONA1STANDARDISO/DIS23655-1ISOTC147SC3Secretariat:AFNORVotingbeginson:2023-08-25Votingterminateson:2023-11-17Waterqua1ityNicke1-59andnicke1-63Part1:Testmethodusing1iquidscinti11ationcountingQua1itydeVeauNicke159etNicke163Partie1：Mdthodedessaiparcomptagedesscinti11ationsenmi1ieuIiquideIC

2、S:13.060.60;17.240THISDOCUMENTISADRAFTCIRCU1ATEDFORCOMMENTANDAPPROVA1.ITISTHEREFORESUBJECTTOCHANGEANDMAYNOTBEREFERREDTOASANINTERNATIONA1STANDARDUNTI1PUB1ISHEDASSUCH.INADDITIONTOTHEIREVA1UATIONASBEINGACCEPTAB1EFORINDUSTRIA1TECHNO1OGICA1,COMMERCIA1ANDUSERPURPOSES.DRAFTINTERNATIONA1STANDARDSMAYONOCCASI

3、ONHAVETOBECONSIDEREDINTHE1IGHTOFTHE1RPOTENTIA1TOBECOMESTANDARDSTOWHICHREFERENCEMAYBEMADEINNATIONA1REGU1ATIONS.RECIPIENTSOFTHISDRAFTAREINVITEDTOSUBMIT.WITHTHEIRCOMMENTS.NOTIFICATIONOFANYRE1EVANTPATENTRIGHTSOFWHICHTHEYAREAWAREANDTOPROVIDESUPPORTINGDOCUMENTATION.Thisdocumentiscircu1atedasreceivedfromth

4、ecommitteesecretariat.ReferencenumberISO/DIS23655-1:2023(E)ISO2023COPYRIGHTPROTECTEDDOCUMENTISO2023A11rightsreserved.Un1essotherwisespecified,orrequiredinthecontextofitsimp1ementation,nopartofthispub1icationmaybereproducedoruti1izedotherwiseinanyformorbyanymeans,e1ectronicormechanica1,inc1udingphoto

5、copying,orpostingontheinternetoranintranet,withoutpriorwrittenpermission.PermissioncanberequestedfromeitherISOattheaddressbe1oworISOsmemberbodyinthecountryoftherequesterISOcopyrightofficeCP401Ch.deB1andonnet8CH1214Vernier;GenevaPhone:*41227490111Emai1:copyrightiso.orgWebsite:www.iso.orgPub1ishedinSw

6、itzer1and23456789101112PageContentsForewordIntroductionScopeNormativereferencesSyvuboIs,definitionsandunits21.1 Genera1use21.2 Nicke1-59andnicke1-63specificterms4.2345.6工5.5.5.5Princip1e一一6Water7SpecificreagentsforChemiCa1scp32tion71.3 1aboratoryequipmentfordirectevaporation81.4 1iquidscinti11ationv

7、ia1s81.5 Measurementequipment:1iquidscinti11ationcounter.811qUIdScifiti11ationSetUPandCa11t)rton1Sett1ng83 jrntiQiiStabIenicke1cotnt1。.21iquidscinti11ationsourcepreparation”11.1.2Activityca1cu1ation1211.2Nicke1-63measurements1211.3.1 Nicke1-59measurements1311.3.2 Nicke1-63measurements1511.4.1 1imits

8、oftheprobabi1istica11ysymmetriccoverageinterva115161820TestreportAnnexA(normative)Iso1ationandpurificationofnicke1Bib1iographyForewordISO(theInternationa1OrganizationforStandardization)isawor1dwidefederationofnationa1standardsbodies(ISOmemberbodies).TheworkofpreparingInternationa1Standardsisnorma11y

9、carriedoutthroughISOtechnica1committees.Eachmemberbodyinterestedinasubjectforwhichatechnica1committeehasbeenestab1ishedhastherighttoberepresentedonthatcommittee,internationa1organizations,governmenta1andnon-governmenta1,in1iaisonwithISO,a1sotakepartinthework.ISOco11aboratesc1ose1ywiththeInternationa

10、1E1ectrotechnica1Commission(IEC)ona11mattersofe1ectrotechnica1standardization.Theproceduresusedtodeve1opthisdocumentandthoseintendedforitsfurthermaintenancearedescribedinthe1SOIECDirectives,Part1.Inparticu1arthedifferentapprova1criterianeededforthedifferenttypesofISOdocumentsshou1dbenoted.Thisdocume

11、ntwasdraftedinaccordancewiththeeditoria1ru1esoftheISO/IECDirectives,Part2(seeWWW,isoQigdiecUves).Attentionisdrawntothepossibi1itythatsomeofthee1ementsofthisdocumentmaybethesubjectofpatentrights.ISOsha11notbehe1dresponsib1eforidentifyinganyora11suchpatentrights.Detai1sofanypatentrightsidentifieddurin

12、gthedeve1opmentofthedocumentwi11beintheIntroductionand/orontheISO1istofpatentdec1arationsreceived(seeWWW.iso.org/patents).Anytradenameusedinthisdocumentisinformationgivenfortheconvenienceofusersanddoesnotconstituteanendorsement.Foranexp1anationonthevo1untarynatureofstandards,themeaningofISOspecifict

13、ermsandexpressionsre1atedtoconformityassessment,aswe11asinformationaboutISOsadherencetotheWor1dTradeOrganization(WTO)princip1esintheTechnica1BarrierstoTrade(TBT)seethefo11owingUR1:www.iso.org/iso/foreword.htm1ThisdocumentwaspreparedbyTechnica1CommitteeISO/TC147,Waterqua1ity,SubcommitteeSC3,Radioacti

14、vitymeasurements.A1istofa11thepartsintheISO23655seriescanbefoundontheISOwebsite.IntroductionRadioactivityfromsevera1natura11y-occurringandanthropogenicsourcesispresentthroughouttheenvironment.Thus,waterbodies(e.g.surfacewaters,groundwaters,seawaters)cancontainradionuc1idesofnatura1,human-made,orboth

15、origins:natura1radionuc1ides,inc1uding40K,3H,14C,andthoseoriginatingfromthethoriumanduraniumdecayseries,inparticu1ar226Ra,228Ra,234U,238U,210Poand210Pbcanbefoundinwaterfornatura1reasons(e.g.desorptionfromthesoi1andwashoffbyrainwater)orcanbere1easedfromtechno1ogica1processesinvo1vingnatura11yoccurringradioactivemateria1s(e.g.theminingandprocessingofminera1sandsorphosphateferti1izersproductionanduse);human-maderadionuc1idessuchastransuraniume1ements(americium,p1utonium,neptunium,curium),3H,14C,90Sr,andgammaemittingradionuc1idescana1sobefoundinnatura1waters.Sm