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1、5SOInternationa1.StandardISO4685Firstedition2024-01Waterqua1.ityRadium226TestmethodusingICP-MSQua1.itedeVeauRadium226MethodedessaiparICP-MSReferencenumberISO4685:2024(en)COPYRIGHTPROTECTEDDOCUMENTISO2024WintGhcdBdHUWwdotherwiseianSit111.CrW4wErtiwnbxtt11mik)hrtRd11kHimhwfrpn911tnmcnpyiptheinternetor
2、anintranet,withoutpriorwrittenpermission.PermissiononberequestedfromeitherISOatthebe1.oworISOsmemberbodyinthecountryoftherequester.b,Vyfrfiandonnet8CH-1214VcmicrrGcncvaPhoae:*41227490111聊独te:薪括嬴OQrgPub1.ishedinSwitzer1.andContentsPageForeword”Iivitroductionv2 SOPe13 Normativereferences1Term,definiti
3、onsandsymbo1.s23.1 Termsanddefinitions.24 3.2Symbo1.s25 Princip1.e36 Sainp1.ingandsainp1.estorage4Chemica1.reagentsandequipment56.1 Genera1.S6.2 Chemica1.reagents578 Separation.5(Uahtycontro1.68.1 Gene1.a1.68.2 Variab1.esthatcaninf1.uencethemeasurement69Expressionofresu1.ts79.1 Dataana1.ysis79.2 Bac
4、kground79.4 Interna1.CaIi1.BB1.iCk1.rd9.5 Detection1.imit89.6 1.imitofquantification810 Testreport9AnnexA(informative)Chemica1.separationof22dtausinga-cationexchangeandacrownetherbasedextractionchromatographyresin20421,22.2311Bib1.iography14ForewordISO(theInternationa1.OrganizationforStandardization
5、)isaWOr1.dwidefederationofnationa1.standardsIK佃iest乎BuimatHh1.QnitidMEA岷nunribefprbp呷WbrtettndtiOna1.St8ud0dB-Mirtob1.1.ytecbafrftidiennthtoeghhasbeenestab1.ishedhastherighttoberepresentedonthatcommittee.Internationa1.organizations,governmenta1.andnon-governmenta1.,in1.iaisonwithISO,a1.sotakepartint
6、hework.ISOco1.1.aboratesc1.ose1.ywiththeInternationa1.E1.ectrotechnica1.Commission(IEC)ona1.1.mattersOfe1.ectrotechnica1.standardization.Theproceduresusedtodeve1.opthisdocumentandthoseintendedforitsfurthermaintenancearedescribedintheISO/IECDirectives,Part1.Inparticu1.ar,thedifferentapprova1.criteria
7、neededforthedifferenttypes儡隔跳淞PeCgke*斑除而。就励IeeM膈和席面用帆膑%c懦I挪的bi町而M槐第制(!patentpatents)whichmayberequiredtoimp1.ementthisdocument.However,imp1.ementersarecautionedthatthismaynotrepresentthe1.atestinformation,whichmaybeobtainedfromthepatentdatabaseavai1.ab1.eatWWWmeMirgpm1.3NsISOsha1.1.notbehe1.drespons
8、ib1.eforidentifyinganyora1.1.suchpatentrights.Anytradenameusedinthisdocumentisinformationgivenfortheconvenienceofusersanddoesnotconstituteanendorsement.F3mHexp1.3M1.HRmrta4*gHKyrUR1.w0bCand裾wAiutHming1.SOUttfhd1.3xMMd1.iiiadiikp4sionsOrganization(VVrTO)princip1.esintheTechnica1.BarrierstoTrade(TBT)1
9、seewww.iso.org/iso/forcword.htm1.ThisdocumentwaspreparedbyISO/TC147.Wa1.erqua1.ity1.SubcommitteeSC3.Radioactivitymeasurements.AnyfeedbackorquestionsonthisdocumentShOUkiWdiFMUd4。theugkMHOna1.standardsbody.Acomp1.ete1.istingofthesebodiescanbefoundatwww.iso.org/members.htm1.Introductionwaters,seawaters
10、)containradionuc1.ides,whichcanbeofeithernatura1.oranthropogenicorigin：rainwater)orrc1.easedbodiestechno1.ogica1.PrOCeSSeSPrOCeSSeSdesorptionoccurringradioactivemateria1.s-Anthropogenicradionuc1.descnnttngradionuc1.idessuchSrr99Tc,Iransuraniccanc1.ementsfoundNprnatura1.radionuc1.idescontrn1.1.edmedi
11、ca1.beingdischargedapp)icationsenvironmentre1.easedwaterenvironmentAnthropogenicFukushimanuc1.earfaci1.ities.containradionuc1.idesatactivityconcentrationsthatsihations.p3ahumandrinkingwatersourcesCanHeaIthNationa1.regu1.ationsUsua1.1.yeff1.uentstothedischargedconcentrationenvironment.Theseauthorized
12、indrinkingp1.anned,providedin1.fRcfcrcnccisandSpccificdcocfficicntedataRcfcrenccRcfcrcnccsva1.uehas.bccnca1.cu1.atedusingtheformu1.adosemSvareresentsmembers1.owIeve1.pub1.icriskanhumanhea1.thanddrinkingexpectedoneyear.riseThisanyandetectab1.eThismethod(三)describedmethod(三)document1.aboratories,vario
13、ustypesdetermine2%MinOrmodificationsemergencysituations,1.owernationa1.guidance1.imitsandoperationa1.requirements.&ISO2024-A1.1.rightsreservedRadionuc1.idesarepresentthroughouttheenvironment;thus,waterbodies(e.g.surfacewaters,groundNatura1.1.y-occurringradionuc1.ides,inc1.uding?HtmC,40Kandthoseorigi
14、natingfromthethoriumanduraniumdecayseries,inparticu1.ar210Pb,210P0,222Rn,226Ra,22sRa.227Ac.232Th,231Par234U,and23U,canbefoundinwaterfromdueeithernatura1.invo1.ving(e.g.natura1.1.yfromthesoi1.andrunoffby(e.g.mining,minera1.processing,oi1.,gas,andcoa1.production,watertreatmentandtheproductionanduseofp
15、hosphateferti1.isers).andCm),andsomegammasuchas55Fe.59Ni,63Ni,90asWeoand137Csa1.sobe(e.g.inP1.1.m,waters.Sma1.1.quantitiesofanthropogenicradionuc1.idescanbedischargedfromnuc1.earfaci1.itiestotheenvironmentasaresu1.tofauthorizedroutinere1.eases.Theradionuc1.idespresentin1.iquideff1.uentsusua1.1.yusedforbeforeandindustria1.thecanbe(1)andtothebodies.afteruse.Anthropogenicradionuc1.idesarea1.sofoundinwatersduetocontaminationfromfa1.1.outresu1.tingfromabove-groundnuc1.eardetonationsandaccidentssuchasthosethath
