ISO 04722-1-2023.docx

INTERNATIONA1.STANDARDISO4722-1editionFirst2023-10Waterqua1.ityThorium232幅骷WethOdusinga1.phaspectrometryQua1.itedeeauThorium232Partie1:Methoded,essaiparSpectrometriea1.phaRctcrcnccnumberISO4722-1.:2023(E)COPYRIGHTPROTECTEDDOCUMENT©ISO2023IUirhM*hedbdi1.iUedotherwiseupdhi.orkwqntto<itH0Dtf1.e!ron>ctu1.aicnpkni1tUqntt*>HdU>cop)nppU1.>joationmaytheinternetoranintranet,withoutpriorwrittenpermission.PermissioncanberequestedfromeitherISOattheaddressbe1.oworISO'smemberbodyinthecountr)oftherequester.f),WV>fifiU81.andonnet8CH-1214Vernier,GenevaPhone：M1.227490111觥ftte:丽丽BQrgPub1.ishedinSwitzer1.andContentsForewordIitroductionScopeNormativereferencesTerms,definitionsandsymbo1.s3.1TermsanddefinitionsSfmbo1.sPrincip1.eChemica1.reagentsandequipmentS.1Genera1.5.2Chemica1.reagentsSamp1.ing,hand1.ingandstorage一.61Samp1.ing.6.2Samp1.estorageSeparationandmeasurement7.1 Chemica1.steps7.2 Measurement7.2.1 Qua1.itycontro1.7.2.2 Chemica1.recovery7.2.3 BackgroundExpressionofresu1.ts8.1 Spectrumana1.ysis8.2 Ca1.cu1.ationofactivityconcentration潮螂棉翳鼬UyDetection1.imit1.imitsofcoverageinterva1.s9.1 1.imitsoftheprobabi1.istica1.1.ysymmetriccoverageinterva1.9.2 1.imitsoftheshortestcoverageinterva1.TestreportAnnexA(informative)Chemica1.separationOfthorium._._.AnnexB(informative)Preparationofthesourcebye1.ectrodepositionAnnexC(informative)PreparationofthesourcebycoprecipitationBib1.iographyForewordISO(theInternationa1.OrganizationforStandardization)isawor1.dwidefederationofnationa1.standardsttiugh(ISOmrtmiw)bMd>niK盟RAucekdHpfff1.QbbGgbodyIcommitteehasbeenestab1.ishedhastherighttoberepresentedonthatcommittee.Internationa1.organizations,governmenta1.andnon-governmenta1.,in1.iaisonwithISO,a1.sotakepartinthework.ISOco1.1.aboratesc1.ose1.ywiththee1.ectrotechnica1.standardization.Internationa1.E1.ectrotechnica1.Commission(IEC)ona1.1.mattersofTheproceduresusedtodeve1.opthisdocumentandthoseintendedforitsfurthermaintenancearedyiFFHSOfISO雇etW1.kes,s姗抬”not1.f1.fcfcww1.蝌闾IC嚓COrdanCe肺theeditoria1.ru1.esoftheISO/IECDirectives.Part2(seewwsv.iso.org/direc1.ives).假)(¾徽ents)aWNWontakest三嬲据i帆n曲1.fiB幽硼8硒ffiHFtm部幽曲野榴IVQdaimedpatentrightsinrespectthereof.Asofthedateofpub1.icationofthisdocumentISOhadnotreceivednoticeof（八）patent(三)whichmayberequiredtoimp1.ementthisdocument.However,imp1.ementersare触怖翻琳酶/mj，wWjSOQFg/眸IentS洗蝮油那ion,扁MMSPOn赖岫油嬲9的阳躲Ora"suchpatentrights.Anytradeusedinthisconstitutenameendorsenent.documentisinformationgivenfortheconvenienceofusersanddoesnotForanexp1.anationofthevo1.untarynatureofstandards,themeaningofISOspecifictermsand幽幽蛔豳酒侬遮W即辆O)assEif1.眦聚inwe帼"1.见OnBar池帆四dead邮&CcsVbr¼11isoorgisoforeword.htmI.ThisdocumentwaspreparedRadioactivitymeasurements,byTechnica1.CommitteeISO/TC147,Waterqua1.ity,SubcommitteeSC3,AIistofa1.1.partsintheISO4722seriescanbefoundontheISOwebsite.由珏拼占6“典fiftsHHiesthismRMeHftKFhoUWWW!而图membeKft1.i命nationa1.standardsbody.AIntroductionwaters,seawaters)containradionuc1.ides,whichcanbeofeithernatura1.oranthropogenicorigin.canrainwater)inorre1.easedfromtechno1.ogica1.Processesprocessesinvo1.vingdesorptionoccurringradioactiveAnthropogenicradionuc1.idesemittingradionuc1.idessuchSr,wTc,transuranice1.ementsfoundNp,natura1.Anthropogenicradionuc1.idesUsedbeforemcdica1.dischargcdtotheenvirontncntandre1.easedbodies.occurredattheChornoby1.andFukushimanuc1.earfaci1.ities.nuc1.earfaci1.itiescanduringp1.anned,radionuc1.idesatemergencyconcentationssitations.can11presentdrinkingNationa1.regu1.ationsusua1.1.yeff1.uentsactivityconcentrationenvironment,authorizedCandrinkingNOTEOfdrinkingRUidanCe1.eve1.ca1.cu1.atedinReferenceetYectiveisdoseactivityconcentrationthat,Withpub1.icintakeofconcentrationcanpossib1.yemergency,thethanVHOCodexandGuideIine1.eve1.sTh,respective1.y,theactivitydeve1.OPeddQCUmentContains1.aboratoriestodetermine232232Thwaterwatersamp1.es.Thetestmethodhasbeencountingtimeofabout200OOOs.characteristic1.imit,decisionthresho1.d,Suchdetectionemergencyanduncertaintiesnationa1.guidance1.imits1.imits.©ISO2023-A1.1.rightsreservedRadionuc1.idesarepresentthroughouttheenvironment;thus,waterbodies(e.g.surfacewaters,groundNatura1.1.y-occurringradionuc1.ides,inc1.uding3i,mC,4oKandthoseoriginatingfromthethoriumanduraniumdecayseries,inparticu1.ar210Pb,2oPor222Rn,22Ra,22Ra,227c23iPa,23Uand23U,bybefoundwaterbodiesdueeithernatura1.(e.g.natura1.1.yfromtheSoi1.runoffmateria1.s(e.g.mining;minera1.processing;oi1.,gasandcoa1.production;watertreatment;andproductionanduseofphosphateferti1.isers).andCm)andsomegammasuch55Fe,59Ni,63Ni,90as60C0and137Csa1.sobe(e.g.inPu,Amwaters.Sma1.1.quantitiesofanthropogenicradionuc1.idescanbedischargedfromnuc1.earfaci1.itiestotheenvironmentasaresu1.tofauthorizedroutinere1.eases.Theradionuc1.idespresentin1.iquidef11uentsarcusua1