ISO 02403-2021.docx

INTERNATIONA1.STANDARDISO2403editionThrd2021-08Texti1.esCottonfibres一Determinationofmicronaireva1.ueTexti1.esFibresdecotonDeterminationdeVindicemicronaire©ISO2021Texti1.esCottonfibres-Determinationofmicronaireva1.ue1ScopefibresNrmativereferencess1.ivers,orothersourcesof1.intcotton.constitutesrequirementsaredocument.Fordatedinreferences,on1.ySonieeditiona1.1.citedapp1.ies.contentISO139,Texti1.es-Standardatmospheresforconditioningandtesting3 Termsanddefinitionsnatthefo1.1.owingISOandIECmaintaintermino1.ogica1.databasesforUSeESIandan13IiOaddresses：3.1 IECE1.ectropedia:avai1.ab1.eat411twww1e1.w1.ropedia.Fgmicronaireva1.ueassignedbyinternationa1.agreement,isbasedonarangeofcottonstowhichmicronaireva1.ueshavebeen4 Princip1.esca1.eTherecordingvariationsIheeitherspecimenareeitherthroughonstanttheforpressurediffcrenceins1.rurncnttheAnnexAMethodofca1.ibrationofinstrumentsA.1.A.2NOTEbcdistinguishedchcckingmorce1.aboratedeterminationofthe1.ocationsofnumerousinstrumcnt,ssca1.eunderotherspecia1.circmstancesatthe1.aboratory,isdescribedinthisannex.3NoTEcommcrciaIIyavai1.ab1.einstruments).ForarcnotcdinstrumcntitmaygraduatcdinmicronaircVa1.UCS(aswithA.4Perfonnancedifferencescomp1.ianceappropriaterequirements.A1.ternative1.y,aseriesbringappropriateinstrumentA.5formu1.a,betweenaverageinstrumentreadingsandcorrespondingestab1.ishedva1.uesintheformofathantheequiva1.entof0,10unitrasindicatedbythegraphorbythestatistica1.1.yestab1.ishedre1.ation,asA.6re1.ation.AnnexBinformativePrecisionexperiment8.1 Genera1.Thisannexgivesanana1.ysisoftheprecisionofmicronairemeasurements.8.2 DescriptionThemeasurementswithinthisexperimenthavebeencarriedoutby721.aboratoriesonsixtest1.nspunn<wTestingofCotton(CSITC),taskforceOf1.nterna1.iona1.CottonAdvisoryCommittee(ICAC)roundtria1.2019-4(day3).8.3 Ana1.ysisTheconsignedva1.ueisdeterminedfromthewho1.eva1.uesprovidedbytheparticipants(seeISO13528:2015,7.7),roundedtothenearest0,01micronaireva1.ue.Therobustmeanx*andtherobuststandarddeviationstareca1.cu1.atedaccordingtotheA1.gorithmAof1.SO13528.Therepeatabi1.ityrisca1.cu1.atedaccordingtotheA1.gorithmSofISO13528.The也岬陶而QgHucedfroms*andr.Thereproducibi1.ityRisdeducedfromrandsbseeTheassignedva1.ueisbasedontherobustmean.Theana1.ysisresu1.tsTab1.eB.1.Comparisonoftestresu1.tsfrom61.eafgradesSamp1.eidentificationCottonsamp1.e1Cottonsamp1.e2Cottonsamp1.e3Cottonsamp1.e4XSUrRepeatabi1.ity1.imit.R0,080.090,090.11Reprodudbi1.ity)imi0,170,160.160,17AnnexCComparisonexperimentC.1.Genera1.C.2Descriptionthe1.aboratorj1.estingsamp1.esapparatus.cottonba1.es)purpose,differentindiridua)grades1.SpecimenstestSpecimenstakenfromC1.eaningAna1.ysisasdescribedin-72.Compared1.eafgrade,individua1.resu1.tsmeasurementsindividua1.measurementsforpreparationtrend1.ineandwereTab1.eC.1-Comparisonoftestresu1.tsfrom61.eafgrades63.630,423.630,40y三0t943x0,2120r956C.4Conc1.usionpreparationmethod.averagevariationofthethemicronairetherepeatabi1.ity“Pre-CIeaningmiCrOnaireiSPrinCiP1.e(informative)ThisannexgivesacomparativestxdyofthepreparationMethods"A*and"B".A1.1.measurementswithinthisstudyhavebeencarriedoutbyoneoperatorinone1.aboratoryusing15same(i.e.Forthisof651.eaftesteach.Thehavebeenwerefirstmeasuredfo1.1.owingMethod"A”(noremova1.offoreignbodiesbeforemeasurement=Mpre-c1.caningMcotton)andadjacent1.yfo1.1.owingMethod(remova1.offoreignbodiesbeforemeasurement=*post-C.3,cotton).Foreachtothe75thetestofa1.1.75forpreparationmethod1.,B11r1.inearmethod"A"thecoefficientofdeterminationRzwasca1.cu1.ated.Inaddition,the1.ineartrend1.ineandthecoefficientofdeterminationRofa1.1.900testswasca1.cu1.ated.Thetestandca1.cu1.ationresu1.tsare1.istedinTab1.eC.1.1.eafgradeMethodmAm(*pre>c1.eaning*vcotton)Method*B*("post-c1.eaninRMcotton)Corre1.ationstudyaveragestandarddeviationaveragestandarddeviation1.ineartrend1.ineformu1.aCoefficientofdetermination产16y三0r951x÷0120,986Thecomparativestudyc1.ear1.yshowsaverygoodagreementofmicronaireva1.ues,independentofthehigher,whi1.eTheva1.uesdifferinrangeofva1.uesforthe1.imitofthea,cottons1.ight1.ydescribedinthisdocument(reportedinAnnexB).HrttuufcrX<A3BdoidnB1.1.iithedescpht1.ratR>a<Ihcdb1.e.effectsthetestresu1.ts,theseparationintodifferentForadetai1.edreportoftheabovemeasurementp1.easerefertoReference3.Bib1.iography15725-5:1998,AccuracydeterminaUonprecision)precisionmeasurementmeasurementmethodPart3MeasurementInCommercia1.ChristopherEffectjourna1.1.nstrumentaIScienceGradeOnHVIMicronaire1-A1.1.11ghtsreservedISOAIternativemethodsforthe(truenessoftheofofstandardmethodsandresu1.ts一2ISO13528:2015,Statistica1.methodsforusein