ISO TS 04689-1-2023.docx

TECHNICA1.SPECIFICATIONISO/TS4689-1editionFirst202303IronoresDeterminationofsu1.furcontent一su1.fategravimetricmethodMinera1.sdeferDosagedusoufre一Par1.ie1:Methodegravimtriqueausu1.fatedebaryumReferencenumberISO/TS46891:2023(E)©ISO2023COPYRIGHTPROTECTEDDOCUMENT©ISO2023IUirhM*hedbdi1.iUedotherwiseupdhi.orbmtndH0tf1.t×t'oni(nc4nmpe*Mqnrt<ifp5tcopyp>iat<)nmaytheinternetoranintranet,withoutpriorwrittenpermission.PermissioncanberequestedfromeitherISOattheaddressbe1.oworISO'smemberbodyinthecountryoftherequester.f),WV>fifiHipB1.andonnet8CH-1214Vernier,GenevaPhone：M1.22749O1.11觥ftte:丽丽BQrgPub1.ishedinSwitzer1.andContentsForewordIvIntroduction2Scope.v1Normativereferences13Termsanddefinitions145riCi1Reagents-1267Apparatus_2Samp1.ingandsamp1.es7.11.aboratorysamp1.e.337.2Preparationoftestsamp1.es.387.2.2 Oeechdvingsignificantcontentsofcombinedwateroroxidizab1.ecompounds.7.2.3 Oresoutsidethescopeof7.2.23.33ProCed1.Ire8.1Numberofdeterminations.338.2B1.anktestandChCktest.83UmepDrtii1.iion48.4.1DecomDositionofthetestportion48.4.2Separation4I1._9Expressionofresu1.ts59.1Ca1.cu1.ationofsu1.furcontent59.2Genera1.treatmentofresu1.ts.69.2.2RhPCktiidPiHtytrQadq38门nissib1.eto1.erance.69.2.3Ca1.cu1.ationoffina1.resu1.t.710Testreport8AnnexA(normative)F1.owsheetoftheprocedurefortheacceptanceofana1.ytica1.va1.uesfortestsamp1.es9Annex B (informative)Derivationofrepeatabi1.ityandpermissib1.eto1.eranceequations.一.10Annex C (informative)Precisiondataobtainedbyinter1.aboratoryana1.ytica1.tria1.11Annex D (informative)Fi1.terdevicediagram12Bib1.iography13IntroductionInthisdocument,anewwayofme1.tingthesamp1.esfordeterminationofsu1.furcontentbybariumsu1.fategravimetricmethodisspecifiedasfo1.1.ows.Samp1.esaresenh-mo1.tenwithsodiumcarbonateandzincoxide.-iR嘛W18同亚%ad,B厕HRfegneti丽fi&gY4,SiI由格!建Iff1.r而dfromtheironandotherThismethodisa1.sosuitab1.eforcomp1.exnatura1.andar1.i11cia)samp1.eana1.ysis.ThisdocumentconsistsofPart1oftheISO4689series.Ironores-Determinationofsu1.furcontent.IronoresDeterminationofsu1.furcontent一Bariumsu1.fategravimetricmethod1 Scopecontentofironores.2 Normativereferencesconstitutesrequirements1.atesteditiondocment.referencedreferences,(inc1.udingamendments)app1.ies.app1.ies.Fischerandmass-1.ossmethodsISOTermsanddefinitionsOfpredriedtestsamp1.esforchemica1.ana1.ysisNotermsanddefinitionsare1.istedinthisdocument.ISOOn1.inebrowsingp1.atform:avai1.ab1.eathttps：/www.iso.org/obp4Princip1.ea)decompositionofatestportionbytreatmentwithasoda-zincoxidef1.uxmixturetoasemi-mo1.tenc)transformationso1.ution;iontobariumsu1.fatethroughadjustmentoftheacidityandadditionofejcarDonate.tneInterrerenceorcr1.on,rthroughnyrogenperoxide,at11cacaanaCa1.en1.mPart1:Thisdocumentspecifiesabariumsu1.fategravimetricmethodforthedeterminationofthesu1.furThismethodisapp1.icab1.etoaconcentrationrangeofamassfractionofsu1.furfrom0,01%to3,9%innatura1.ironores,ironoreconcentratesandagg1.omeratesinc1.udingsinterproducts.Thefo1.1.owingdocumentsarereferredtointhetextinsuchawaythatsomeora1.1.oftheircontentundatedreferences,theofthisoftheFordateddocumenton1.ythcanyeditioncitedForISO2596,IronoresDetenninationofhygroscopicmoistureinana1.ytica1.samp1.esGravimetric.Kar1.ISO3082,IronoresSamp1.ingandsamp1.epreparationprocedures37764rIronPreparationISOandIECmaintaintennino1.ogydatabasesforuseinstandardizationatthefo1.1.owingaddresses:IECE1.ectropedia:avai1.ab1.eathttps:/www.c1.ectropedia.org/Theana1.ysisprincip1.eisasfo1.1.ows:state；b)water1.eachingofsu1.fateionwithe1.ectro-magneticstirringandfi1.trationoftheinso1.ub1.eresidue;bariumch1.orideofsu1.fated)fi1.trationofbariumsu1.fateandgravimetricdetermination；remova1.of5ReagentsDuringtheana1.ysis,useon1.yreagentsofrecognizedana1.ytica1.gradeandon1.ydisti1.1.edwaterorwaterofequiva1.entpurity.5.1 Sodiumcarbonate-zincoxidemixedf1.ux,grindNazCOato-10()mesh,b1.endNa2CO3andZnO蚣3:2柳常>½(mate.5.3 Hydrof1.uoricacid,p1,15gm1.5.4Hydroch1.oricacidso1.ution,mixp=1,15g/m1.Kydroch1.oricacidanddisti1.1.edwaterby1:1(vo1.umeratio).5.5Sii1.fiiricacidso1.ution,mix=1,84g/m1.su1.furicacidanddisti1.1.edwaterby1:1(vo1.umeratio).5.6Hydrogenperoxide,30%(massfraction).5.7 Ethano1.(ethy1.).5.8Citricacidso1.ution,50%(massfraction).5.9Sodiumcarbonate(Na2CO3)r20g/1.so1.ution.5.10 Si1.vernitrate.10g/1.so1.ution.5.11 Methy1.orange,1g/1.so1.ution.5.12 Bariumch1.oride(BaCIz-ZHzO).100g/1.so1.ution.隔飒a的StPke外也磔时Iin也BMhft电酎iddM%H除。®附酗画OWRfoO1.i1.柳兼电尚处丽网atureovernight.Storetheso1.utioninap1.asticbott1.eand,beforeeachu