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1、INTERNATIONA1.STANDARDISO728editionF(Wrth202106CokeSizeana1.ysisbysievingCokAna1.ysegranu1.omtriquepartamisageRMcncc7ttatta1.(E)ISO2021COPYRIGHTPROTECTEDDOCUMENTISO2021岫rkdea/山thUcdOthcnviscSfrafiiiiiceorrtQmrwteiehDVBiwiX(iJioiti08phnn11UatiocBhrhotocp)Mng,ptbca11onpostingontheinternetoranintranet,
2、withoutpriorwrittenpermission.PermissioncanherequestedfromeitherISOattheaddressbe1.owOr1.sOXSmemberbodyinthecountryoftherequester.%,tft晒Iandonnet8CH-1214*crnicr,GenevaPhone：M1.22749O1.11Witc:iWtfiftWSo.orgPub1.ishedinSwitzerhndContentsforeword7ScopeNormativereferencesTermsanddefinitionsPrincin1.eApp
3、aratusSamp1.ingandpreparationofsizingsamp1.e2Procedures3Expressionofresu1.tsfora1.1.sizes7Determinationofmeancokesizefromresu1.tsinTab1.e27109.1 Ca1.cu1.ationofmeancokesize9.2 Ca1.cu1.ationofcokemeansizefromdatatnTab1.e3PrecisionofthemethodI2910.1RePeatabi1.ity911102IePrOdUC1.b1.I1.CyMM(*3i2MM3(*.M9
4、*-，TestreportrtniK盟RAucekdHpfff1.QbbGgbodyIcommitteehasbeenestab1.ishedhastherighttoberepresentedonthatcommittee.Internationa1.organizations,governmenta1.andnon-governmenta1.,in1.iaisonwithISO,a1.sotakepartinthework.ISOco1.1.aboratesc1.ose1.ywiththee1.ectrotechnica1.standardization.Internationa1.E1.
5、ectrotechnica1.Commission(IEC)ona1.1.mattersofTheproceduresusedtodeve1.opthisdocumentandthoseintendedforitsfurthermaintenanceare。智SFR幽of1.SOIECM糙nt蚀用(冲%S出胡SM&礴就MgiferRCCOrdanCe册Fhtheeditoria1.ru1.esoftheISO/IECDirectives.Part2(seewww.iso.org/direc1.ives).时歌ionrightsd般掂棚15脚蝴橱卿SnSi踊神阴的砌g刑曲doc1.三崎翩舟硼hs
6、ubjectofanypatentrightsidentifiedduringthedeve1.opmentofthedocumentwi1.1.beintheIntroductionand/orontheISO1.istofpatentdec1.arationsreceived(seewww.iso.org/pa1.ents).Anytradeusedinthisconstitutenameendorsement,documentisinformationgivenfortheconvenienceofusersanddoesnotForanexp1.anationofthevo1.unta
7、rynatureofstandards,themeaningofISOspecifictermsand脚觊猫眼y序辅外tionc。的福P奥爽融Mthe可般IIi潴称柝福ticn1盘件戏3以徽?盘?iso/foreword.hun1.ThisCoACdOCUmentwaspreparedbyTechnica1.Committee1SOTC27,Coa1.andcoke.SubcommitteeSC3.ThisfourtheditionofISO728cance1.sandrep1.acesISO728:1995andISO2325:1986,whichhavebeentechnica1.1.yr
8、evised.Themainchangescomparedtothepreriouseditionareasfo1.1.ows:thecokesizeana1.ysisoftheminus20mmfractionshasbeenmovedtothisdocument;1.owimpactmechanica1.sievingwasaddedtothescope；sfi1.5ftng13;cokewasintroducedfrom125mmdownto22,4rnmtobeconsistentwithcoa1.ISO728nowincorporatesISO2325;wasmodified,mov
9、edfromanannextothemaindocumentandaAnyfeedbackorquestionsonthisdocumentshou1.dbedirectedtotheusersnationa1.standardsbody.Acomp1.ete1.istingofthesebodiescanbefoundat*w%VHHMFg三emheFftm).CokeSizeana1.ysisbysieving1 Scopemechanica1.hand1.ingusingsamp1.ingroundho1.edSievesproductsapertureSizesthanbetweenm
10、m125givenandAnnexmm.2 Normativereferencesamendmen1.s)requrementsofthisdocument.The1.atesteditionofthereferenceddocument(inc1.udingISO1213-2rSo1.idminera1.fue1.sVocabu1.aryPart2:Termsre1.atingtosamp1.ing,testingandana1.ysisp1.ate3310-2rTestsievesTechnica1.requirementsandtestingPart2:Testsievesofperfo
11、ratedmeta1.ISO13909-6,Hardcoa1.andcokeMechanica1.samp1.ingPart6：CokePreparationOftestsamp1.es3 TermsanddefinitionsISOandIECmaintaintermino1.ogica1.databasesforUSeinStandardiZatiOnatthefo1.1.owingaddresses：-E1.ectropedia:avai1.ab1.eaU出manua1.andcokemechanica1.sieving,andmoistureisexpressedprocessofof
12、sizecumu1.ativepercentage5ApparatuschecktheSievesdimensionsareWithinusingspecifiedto1.erances.WomISOdamagedsieves3310-2,giveensureThisdocumentspecifiesproceduresforthesizeana1.ysisofcokebymanua1.and/or1.owimpactGuidanceonsieving,thesquareorandsizingofcokeofgreater125ismmin0,5AThefo1.1.owingdocuments
13、arereferredtointhetextinsuchawaythatsomeora1.1.oftheircontentanyconstiUitesapp1.ies.ISO579rCokeDeterminationoftota1.moistureISO3310-1,TestsievesTechnica1.requirementsandtestingPart1：Testsievesofmeta1.wirec1.othISOISO13909-5,Hardcoa1.andcokeMechanica1.samp1.ingPart5:CokeSamp1.ingfrommovingstreamsISO1
14、8283rHardcoa1.andcokeManua1.samp1.ingForthepurposesofthisdocument,thetermsanddefinitionsgiveninISO1213-2app1.y.ISOOn1.inebrowsingp1.atform:avai1.ab1.eathttps:/www.iso.org/obp4IECPrincip1.eAsamp1.eoforwith1.essthan5%theresu1.tsaresubjectedtoaintermstheana1.ysisbyspecifiedbymassofthecokeremainingonsie
15、vesofdifferentsizedopenings.Testsieves,inaccordancewithISO3310-1andISO3310-2.Thesetofsievesusedsha1.1.haveexc1.usive1.yroundho1.esorexc1.usive1.ysquareho1.es.Itisimportanttothatho1.efromtimetotime,thethemethodsspecifiedinor3310-1.andISOcantorisetoseriouserrorsinsizeana1.ysisandsha1.1.bediscarded.The
16、testsievesshou1.dbese1.ectedaccordingtotherequirementsofthetestandthecharacteristicsofthesamp1.e.Ifpossib1.e,theseriesofsievesshou1.dbcingsuhxSddEarttiaiu11jsd61.CokCmanI酒HtpMfrac6ujd6iffitefi1.2%Bdfihnk1.1.o611Un)Icareout1.ined.Othersievesofvariousnomina1.ho1.esizescana1.sobechosen.Forsamp1.esconta
17、iningpieceswithapartic1.eSiZegreaterthan125mm,sing1.e-ho1.egaugesmaybeusedinsteadoftestsieves.5.2Ba1.anceorsca1.e,capab1.eofmeasuringthemassofeachsizefractiontothenearest0,1%.5.3Receiversorbins,forco1.1.ectingmateria1.passingthroughthesieve.5.4Trays,smooth,ofnon-corrodib1.emateria1.,ofat1.east400mm4
18、00mm,dependingonthemassofsamp1.eandnumberofana1.ysisrequired.5.51.ids,tofitthetestsieves.5.6F1.atbnsh,forc1.eaningthesievesandforbrushingdustfromthetrays.5.7Hardwoodb1.ock,about150mm1.ongwitha10mmX10mmcross-section,fortappingthesieve.5.8Shove1.orscoop.5.9Vibratorysieveshakerformechanica1.sieving,(se
19、eexamp1.eFigure2).Sma1.1.1.owimpactvibratorysieveshakersmaybeused,providingthattheiractiondoesnotbreakthecokeandthattheresu1.tsareknowntobenotbiasedwithrespecttotheresu1.tsobtainedbyhandshaking.6Samp1.ingandpreparationofsizingsamp1.eThesievingsha1.1.becarriedoutonsamp1.eshaving1.essthan5.0%moisturea
20、sperthefo1.1.owingprocedures.a) Forunknowncokes,twogrosssamp1.essha1.1.besamp1.edinaccordancewithISO13909-5orISO18283.Eachgrosssamp1.esha1.1.bepreparedinaccordancewithISO13909-6orISO18283anddcte11色a1.ionminimum眼W腑由KR椒dPrfrPQreFhpieO.t0ta1.samp1.cd),drytheothersamp1.esufficient1.ytoreducethetota1.moi
21、sturecontentto1.owerthan5,0%(assamp1.ed).Aftertheinitia1.dryingifthetota1.moistureissti1.1.above5,0%furtherdryingwi1.1.beisuVrtf1.c1.fei5WMioistureis1.essthan5r0%.Thefina1.driedsamp1.e1.essthan5,0%b) Forknowncokeswith1.essthan5,0%moisturefromthesamep1.antorsamesupp1.ier,nofurther昵的翻油椰映战U能的1帆愉冽闪版魄帙av
22、e魂置抑他1.州酬三&AIteM1.Wthandryingmostcokesamp1.esfor12hormorea1.100to200shou1.drenderthesamp1.esuitab1.eforsizingon1.y.Ifon1.ysizeana1.ysisisrequired,itispermissib1.etotakeonegrosssamp1.eforsizingandfi1.1.8periodorthe1.onger12hdryingtimeat100to200topreparethegrossTab1.e1Minimummassofcokesamp1.esforgener
23、a1.ana1.ysis,determinationoftota1.moisturecontentandsizingkgS.62SCCISO182837Procedures7.1 Sizingsamp1.eOfpartic1.esizegreaterthan22,4mmbut1.essthan125mm22,4sizemm.testsamp1.efora1.1.thesievesinTab1.e1.Othersievesizesmaybeusedbetween125mmandb) Fecommendednestonetime)insieves(125sieveaperturesizewitha
24、ndsma1.1.est(maximum4sievesc) P1.aceofportionOfareacokecoveredsamp1.eshakemanua1.1.ythea1.1.owsievemostsma1.1.IindersizenotmoreHandpartideshaker(seeFigureshakerbeusedtoposition,processp1.usstopstartbasis.fractionp1.acetaredd)Repeatsizefrac1.ions.c)forsizefractions63mm,50mm,45mmand31,5mm,andrecordthe
25、massNomina1.topsizeofcokeMinimummassThesievesout1.inedintheproceduredescribedinthissubc1.ause(7.1)arcusedasanexamp1.einhowtoaa)Determinethemassofthecokesamp1.etohesizedtothenearest0,1%ofthemassofthesamp1.e.11angeasetatof450orderofmn100mm.90mmthe75mm)atthebottomoveranemptytaredreceiverorbinmadefromp1
26、.astictominimizebreakageorp1.aceonasieveshakersimi1.artoFigure1.75%athesievetheistestandattimeontotopoftheenoughthatpass,thanp1.acetheremainingpartic1.esofcokeinturn.Ifitpassesthroughthesieveopeninginanypositionandwithoutforcingitritisdesignatedaspassing125mm.A1.ternative1.y,a1.owimpactmechanica1.si
27、evewiththesieve1)canintheoff1.,assistthisCo1.1.ecttheona125mmsizeHandineachemptybinandrecorditsmassinkg.Repeatthisprocessthrough100mm,90mmand7Smmscreens,andrecordthemassofthesesizefractions.ofthesetheprocessNOTE1Theminus22,4mmfractionfrom-74e)issizedasper-73or-75.The22.4nunsieveinthisdocumenthasbeen
28、usedtoindicatethatinthesizefractionsabovethissizeeachpartic1.esha1.1.behandp1.aced.However,itispermissib1.etouseasimi1.arscreeninthe19mmto25mmrangeforthisfunction.NOTE2*Handp1.acingreferstotheoperationdefinedinISO1213-2.Figure1Examp1.eofa1.arge1.owimpactvibratorymechanica1.sieveshakerh) MshiRidik-th
29、eapp11Eat;IheSIdpsiWQxShiitadHeyuKtibfigsdnrvsforafurtinrSze,11unandpeod.receivcrori) ttheendofthe5minperiod,c1.eaneachsieveinturn,startingwiththesma1.1.estaperturesizeW融e,by。斗乐1ngbrusH瞪铝gS熙J三cehi例却喝虱机rtedsieveiMJocksievetherightwayupandaddany1.oosepartic1.esdis1.odgedduringthebrushingtotheoversizeo
30、nthetray.Returnthesievetothenestandtransferthemateria1.onthetraybacktothesieve.I)外僻故ftmsferB卅况RT图:rib曲府胡泰拈却小汨3d而ete林gWWU曲变er的甬幅淋action.Addtheundersizeobtainedfromtheinitia1.separationtothatfromthefina1.sievingbeforeweighing.k)Wtothen出海豳hi三if避FhfnnJr三三1.1.AmoCeSS廿展由Bedthedifferencebetweenthetwomassde
31、terminationsforanysizefraction,afterconsecutivesievingcyc1.es,doesnotexceed0,2%Ofthetota1.massofcokebeingsieved.7.5Sizingsamp1.eofpartic1.esizebetween22,4and4,0mmMechanica1.method0.1%.b) Assemb1.etheappropriatesievesinanestrindescendingorderofaperturesize,andfitareceiverorbin.P1.acethesamp1.eontheto
32、psieveandfixasieve1.id.Shakethenestofsievesmechanica1.1.yfor5minperiod.c) Attheendofthe5minperiod,c1.eantheundersideofeachsieveinturnwithaf1.atbrushandcarefu1.1.yaddany1.oosepartic1.esdis1.odgedduringthebrushingtotheoversizeoftheimmediatesievebe1.owinthenest.Returna1.1.thesievestothenest.d) Repeatth
33、eprocessdescribedinitemsb)andc)twice,thenafterthefina1.c1.eaningofthesievestransferthemateria1.fromthesievesanddeterminethemassofeachsizefraction,fterdeterminingthemassofeachindividua1.sizefraction,returnittothecorrespondingsieve.e) Repeatthesievingcyc1.edescribedinitemsb)andc)1.andthenredetermineth
34、emassofeachsizefractionasdescribedinitemd).ContinuethisPrOCeSSunti1.thedifferencebetweenthetwomass9t(fi1.cWJfti11ASK*s2kcSV1.Rjvcd.consecu1.ivemechanica1.sievingcyc1.es,doesnotexceedThemassoftheminus4,0mmfractionfrom7.5e)maya1.sobereducedinasimi1.arfashionto7.2beforeproceedingtoI6./.6Sizingsamp1.eof
35、partic1.esizeminus4,0mmMechanica1.method0,1%.b) Assemb1.etheappropriatesievesinanestrindescendingorderofaperturesize,andfitareceiverorbin.P1.acethesamp1.eonthetopsieveandfixasieve1.id.ShakethenestOfsievesmechanica1.1.yfor5minperiod.c) Attheendofthe5minperiod,c1.eantheundersideofeachsieveinturnwithaf
36、1.atbrushandcarefu1.1.yaddany1.oosepartic1.esdis1.odgedduringthebrushingtotheoversizeoftheimmediatesievebe1.owinthenest.Returna1.)thesievestothenest.d) Repeattheprocessdescribedinitemsb)andc)twice,thenafterthefina1.c1.eaningofthesievestransferthemateria1.fromthesievesanddeterminethemassofeachsizefra
37、ction.Afterweighing,returneachindividua1.sizefractiontothecorrespondingsieve.7sizetheascyc1.einitemitemsandc),andthenthcdifferencethemassoftwoweighingsforanysizefraction,afterconsecutivemechanica1.sievingcyc1.es,docsnotexceed0r2%ofthetota1.massofcokebeingsieved.Ifnecessary,ca1.cu1.atethecumu1.ativem
38、assoneachsievestartingwiththesievewiththe1.argestsizeofofthethemassesofpassingsizeeachsieveCa1.cu1.atetheapparent1.oss,i.e.thedifferencebetweenthetota1.massofthetestsamp1.ebeforesievingthethetota1.oftheresu1.tscanyouta1.ossisgreaterthan0,4oftheorigina1.toofmassofthesma1.1.estsizefraction.massestothe
39、nearest0,1kgtoathepercentageofthetota1.mass0r1.%.nexamp1.eoftheresu1.tsofasizeana1.ysisofcoke,intermsofthecumu1.ativeoversize,isgiveninNomina1.sizeofho1.e(squareho1.e)MassoffractionCumu1.ativemassCumu1.ativepercentageoversizeOrigina1.mass=2004,7Tab1.e3showstheca1.cu1.ationofmeancokesizetakenfromthed
40、atainTab1.e2.Tab1.e3Ca1.cu1.ationofmeancokesizeNOTE2t1.1.t_,arctheEaSSCSontheindividua1.screens.examp1.e,itisdesignatedasthe150mmsieve.NOTE=100Thesievewiththeho1.esize*isahypothetica1.sievethroughwhichnocokewi1.1.pass.(i.e./=0mm9.2Ca1.cu1.ationofcokemeansizefromdatainTab1.e3KS+n2)(fj32)K(j+k)2)1.(k/
41、)/2)64.1(137,5)+185,2(112.5)508,4(90,0)44.4(25,8)352,0(75,5)36.3(15,0)303.5(67.0)*230.5(56.5)*166,8(45.0)13813,8+506,0+870,07+1143,3576,0544,5166,0147569,0)Meancokesize=73,6mmDesigna*tionofho1.esizesNomina1.sizeofho1.e(squareho1.e)Ca1.cu1.atemeanscreenforca1.cu1.ationMeansizeDesignationofmassonscree
42、nMassonscreenCumu1.ativemassCumu1.ativemassMassabahBCbeCdcdDedeEfefF9fgGhghHihiIiiiJkkK/1.abedhk1.ABCDHK1.NOTE1Whenconsideringthesizeana1.ysisinTab1.e2beforecommencingthemeansizeca1.cu1.ation,thereisoneassumptiontobemade.Thereisnotasieverecordedwithaho1.esizethroughwhicha1.1.cokepasses.InthisNOTE2Th
43、esievewithaho1.esize*awisthesma1.1.estsizethroughwhicha1.1.thecokepasses.(i.e,/1=0%).and1.3%).(WSb)21+qfb&/2OaC+d2)EfRZe】/2)丹侄f)/2)+Gf(f+)2)+II。+6/2)EofMassonscreen)80,3(35,8)33,2(5,0)2004r78023r3720835,0245756r0*26+20+334,S2004,72004,7A1.todtKifiMirnethateeOcaiCtHm1.aAoMHrgciphuB1.ihbiidrfbrdeUnmpc
44、HJtitoiuinay1.eadtos1.ight1.ydifferent10Precisionofthemethod10.1 Repeatabi1.ityTheresu1.tsofdup1.icatedeterminationsofmeansize,carriedoutatdifferenttimesinthesameto1111uy,bWtiteatarti1.dopefttorMbythmoctiananus,onrepresentativetestsamp1.estakenfrom10.2Reproducibi1.ityNova1.ueforreproducibi1.itycanbequotedfordeterminationscarriedoutindifferent1.aboratories,sincethedistribution.transportationofcokesamp1.esinvo1.vestheriskOfbreakageandthusa1.terationofthesize11TestreportThetestreportsha1.1.inc1.udethefo1.1.owing:a) themethodusedbyrefere
