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1、TECHNICA1.REPORTISO/TR29263editionFirst2021-07Cerea1.sandcerea1.products一Samp1.ingstudiesCra1.ese1.productsca1.iers-EtudessurIchanti1.1.onnageReferencenumberISO/TR29263:2021(E)COPYRIGHTPROTECTEDDOCUMENTISO2021岫rkdea/山thUcdOthcnviscspfti1.iwcorrhotocopwg,puicatonpstingontheinternetoranintranet,withou
2、tpriorwrittenpermission.PermissioncanherequestedfromeitherISOattheaddressbe1.oworISsmemberbodyinthecountryoftherequester.%,tft晒Iandonnet8CH-1214*crnicr,GenevaPhone：M1.22749O1.11Pub1.ishedinSwitzerhndISO2021-A1.1.rightsreservedCerea1.sandcerea1.productsSamp1.ingstudies1 ScopeKingdom,forofficia1.Germa
3、nyre1.atedtograinsamp1.inginordertodefineaharmonizedsamp1.ing2 Normativereferences3 TermsanddefinitionsISOandIECmaintaintermino1.ogica1.databasesforuseinStandardiZatiOnatthefo1.1.owingaddresses：E1.ectropedia:avai1.ab1.eathttp:/www.e1.eetropedia.org/European(Iirectivesana1.ysis-Officia1.ordercontro1.
4、shannonizeContaminantsproceduresmycotoxinsrequiredmethodsTheStudyUieseextractfromPreSentedSamP1.ingrePort.assessment:samp1.inggrainin1.orries-Projectreportno339”5.1 Genera1.DepartmentOfEnvironmentaIScienceandTechno1.ogy,Renewab1.eResourcesAssessmentGroup,(project2955).reportofa13-monthprojectthatsta
5、rtedinMay2003.TheworkwasfundedbyHGCA5.2 ContextOperatorsshou1.dbefami1.iarwiththeequipmentandhaveanunderstandingoftheprob1.emsOfb)Takingmanua1.samp1.es: Useaspearthatwi1.1.co1.1.ectmu1.tip1.esub-samp1.esfromdifferentdepths； spreadsamp1.esfrompossib1.e1.eastacross(preferab1.j,withoutsamp1.epoints/1.o
6、ad.Thesesomepointsshou1.dbe Addthesamp1.estogethertoformacompositesamp1.erepresentingthe1.oad； dividedthecompositequarteringtosamp1.eworkingsamp1.e.avai1.ab1.ethesamp1.edividerbe grainqua1.ityappropriatetoretainpartofthecompositesamp1.eincaseofanydisputeoverthe 49Takingsamp1.eswitharemotesamp1.ingpr
7、obeinsertedmaximum.Thisinwi1.1.1.oad;toovercometheco1.1.ectionofsma1.1.samp1.eswhenthespearisthatitcanaccessasmuchofthe1.oadaspossib1.e; apartpossib1.econtro1.1.edmanua1.1.y,co1.1.ect8samp1.es/1.oadfromdifferentpointsspreadasfarquartering.Fai1.uremeasurcments(particu1.ar1.yscreening);quarterthesamp1
8、.eis1.ike1.ytoincrease6Studyno2:extractfromSamp1.inggraininstaticandf1.owingcondition-a1.ternativestotheregu1.atoryprotoco1.6.1 Genera1.ARVA1.ISInstitutduVegeta1.-3rueJosephctMarieHackin-75116PARIS19ISO2021-A1.1.rightsreservedsamp1.inggrain;Safetyshou1.da1.waysbethefirstconsiderationinanysamp1.ingop
9、eration. Useamanua1.spearthatisat1.east1,5m1.ong; Co1.1.ectabout500g/samp1.epoint.Thismayrequire2insertions/samp1.epoint;Co1.1.ectwide1.yasat5the1.oad8)risktheoperator.Incase,itmayappropriatetomovethe1.orrytogivebetteraccess； Mixthecompositesamp1.ethorough1.y;Dividebyconingandsamp1.ewithagivedivider
10、.IfthisisnotFai1.uretouseashou1.dortoconeandquarterthesamp1.eis1.ike1.ytoincreasetheerrorinthemeasurements(particu1.ar1.yscreenings);ItmaybeC) Wheretheamountofgrainco1.1.ectedperinsertioncanbeadjusted,itmaybeappropriatetosetthistointotroughsthehe1.p Trytoensurethatthe1.orryispositionedwiththesamp1.e
11、raboutha1.fwaya1.ongthetrai1.erso Ifthesamp1.erhasanautomaticprogramme,choosetheoptionthatco1.1.ects8samp1.esfromdifferentpoints;iftheasprobeoverthe1.oad； Mixthecompositesamp1.ethorough1.yandthendivideusingasamp1.edividerorbyconingandtheerrorthetosamp1.edividerortoconeand Itmaybeappropriatetoretainp
12、artofthecompositesamp1.eincaseofanydisputeoverthequa1.ity.ByG.VERON-DE1.ORandJ.1.EBRUNffthahrthtastt8e!ts11beaisreguhtoymethod500C)wheMcornI4Sampiiiieequ1.pmencnumberofInCTcmentsmassofIncrement(Kg)maCitJggrcgatesamp1.e(kg)：massofhbo11torsamp1.e(kg)ooso2S0.3AU2a1.6S85i9.sxp500T10/ImIBH43iB3IDfs0opSMT。知,919331(MStatic1.orriesBoernerdividerBvrerdividerwheatcom64Iamp1.ingequipmentenumberofIncrementsussofincrement(kg)Dmassofaggregatesa
