metolachlor spec 1992 spec.docx
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metolachlor spec 1992 spec.docx
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metolachlorspec1992spec
FAOSPECIFICATIONSFORPLANTPROTECTIONPRODUCTS
METOLACHLOR(AGP:
CP/302)
FOODANDAGRICULTUREORGANIZATIONOFTHEUNITEDNATIONS
Rome,1992
DISCLAIMER
FAOspecificationsaredevelopedwiththebasicobjectiveofensuring,asfaraspossible,thatpesticidescomplyingwiththemaresatisfactoryforthepurposeforwhichtheyareintended.However,theGrouponPesticideSpecificationsoftheFAOPanelofExpertsonPesticideSpecifications,RegistrationRequirements,ApplicationStandardsandPriorInformedConsentwishestoemphasizethat,owingtothecomplexityoftheprobleminvolved,questionssuchasthesuitabilityofpesticidesforthecontrolofaparticularpestmustbedecidedatnationalorprovinciallevel.ThesespecificationsshouldnotbeassumedtobeanendorsementoftheuseofaparticularcompoundforagivenpurposebyeithertheGroupofExpertsorFAO.
Accordingly,neithertheFoodandAgricultureOrganizationoftheUnitedNations(FAO)northemembersoftheGrouponPesticideSpecificationsoftheFAOPanelofExpertsonPesticideSpecifications,RegistrationRequirements,ApplicationStandardsandPriorInformedConsentwarrantthatpesticidescomplyingwiththesespecificationsaresuitableforcontrolofanygivenpestorforuseinanparticulararea.
Furthermore,thepreparationanduseofpesticidescomplyingwiththesespecificationsarenotexemptfromanysafetyregulationorotherlegalorregulatoryprovisionapplicablethereto.NeitherFAOnoranymemberoftheFAOGroupofExpertsshallbeliableforanyinjury,loss,damageorprejudiceofanykindthatmaybesufferedasaresultofthepreparationoruseofpesticidescomplyingwiththesespecifications.
Additionally,theGroupofExpertswishestowarnusersofspecificationsthatimproperfieldmixingand/orapplicationofpesticidescanresultineitheraloweringorcompletelossoftheirefficacy.Thisholdstrueevenincaseswheresuchpesticidescomplywiththespecificationsindicated.
Accordingly,theGroupofExpertsand/orFAOcanacceptnoresponsibilityfortheconsequencesofimproperfieldmixingand/orapplication.
INTRODUCTION
Fromtimetotime,FAOpublishesbookletsofspecificationsfortechnicalmaterialsandrelatedformulationsofplantprotectionproducts.Revisionsof,andadditionsto,alreadypublishedspecificationswillbeissuedwhennecessary,butrevisionsmaybeprintedintheFAOPlantProtectionBulletinduringtheintervalbetweeneditions.
ThespecificationscontainedhereinhavebeencarefullyreviewedandagreedbytheGrouponPesticideSpecificationsoftheFAOPanelofExpertsonPesticideSpecifications,RegistrationRequirements,ApplicationStandardsandPriorInformedConsentafterconsultationswithofficialgovernmentscientists,thepesticidesindustrythroughGIFAP(GroupementInternationaldesAssociationsNationalesdeFabricantsdeProduitsAgrochimiquesor,inEnglish,InternationalGroupofNationalAssociationsofManufacturersofAgrochemicalProducts)and,whereappropriate,withindividualmanufacturers.1
FAOhaspublishedaManualonthedevelopmentanduseofFAOandWHOSpecificationsforPlantProtectionProducts,FAOPlantProductionandProtectionPaperNo.173,Rome2002(RevisedFirstEditionavailableonlyontheFAOhomepageoftheInternetat:
http:
//www.fao.org/ag/agp/agpp/pesticid/)
ThismanualcontainsdetaileddefinitionsandotheressentialbackgroundinformationonbasicproceduresandtechnicalprinciplesadoptedbythegrouponPesticideSpecificationsoftheFAOPanelofExpertsonPesticideSpecifications,RegistrationRequirements,ApplicationStandardsandPriorInformedConsent,suchas:
1.CategoriesofSpecifications
FAOTentativeSpecifications(Code‘S/T’,formerly‘ts’)arethosewhichhavebeenrecommendedbyFAOaspreliminaryspecificationsandwhicharebasedonminimumrequirements.Themethodsofanalysiscitedarenormallysuppliedbythemanufacturerormayalreadyhavebeenpublishedorbethesubjectofcollaborativework.
FAOProvisionalSpecifications(Code‘S/P’,formerly‘S’)arethoseforwhichmoreevidenceofthenecessaryparametersisavailableandwheresomecollaborativestudyofthemethodsofanalysishasbeencarriedout.
FAO(full)Specifications(Code‘S/F’,formerly‘S’).
SpecificationsthathaveallnecessaryrequirementstogetherwithCIPAC(full)methods,orothercollaborativelystudied(proven)methods.2,3
Whereverpossible,standardsforapparatusandcommonnamesforpesticidesarethoseapprovedbytheInternationalOrganizationforStandardization(ISO).
2.Expressionofactiveingredientcontent
-forsolids,liquidtechnicalmaterials,volatileliquids(ofmaximumboilingpoint50C)andviscousliquids(withminimumkinematicviscosityof1x103m2/sat20C)theFAOSpecificationshallbebasedonexpressionofthecontentasg/kg;
-forallotherliquidstheactiveingredientcontentoftheproductshallbedeclaredintermsofg/kgorg/lat20C.Ifthecustomerrequiresbothg/kgandg/lat20C,thenincaseofdisputetheanalyticalresultsshallbecalculatedasg/kg.
3.Toleranceoncontent
Adeclaredcontentofactiveingredientmustbeincludedinallspecifications,andoneoftheproblemsimmediatelyarisingistheleveloftoleranceacceptableaboutthenominalfigure.Thetoleranceisinfluencedby(a)thereproducibilityofthemethodofanalysis,(b)thesamplingerrorand(c)themanufacturingvariance.
Allowablevariationsinanalyticalresults(i.e.tolerancesincontentofactiveingredient)withrespecttospecificpesticideconsignmentsareintendedtocoverreasonablevariationsinthecontentsofactiveingredients..
4.Containers/packaging
FAOguidelinesareinpreparation.
Containersshallcomplywithpertinentnationalandinternationaltransportandsafetyregulations.
Technicalmaterials,dustablepowdersandgranules
Containersshallbesuitable,clean,dryandasspecified,andshallnotadverselyaffect,orbeaffectedby,thecontents,butshalladequatelyprotectthemagainstexternalconditions.
Wettablepowders
Theproductshallbepackedinsuitable,clean,drycontainersasspecifiedintheorder.Thecontainershallprovideallnecessaryprotectionagainstcompaction,atmosphericmoisture,lossbyvaporizationand/orcontaminationtoensurethattheproductsuffersnodeteriorationundernormaltransitandstorageconditions.
Theproductshallbeprotectedbyanadequatemoisturebarrier.Thismaybeasuitablebagofpolyethyleneoralternativemeansofgivingequalorbetterprotection.
Solutionsandemulsifiableconcentrates
Containersshallbelined,wherenecessary,withasuitablematerial,ortheinteriorsurfacesshallbetreatedtopreventcorrosionand/ordeteriorationofthecontents.
Additionalinformationshouldbegiveninallspecificationswhereparticularpesticidespresentproblemsinpackaging.
5.Biologicalinformation
Phytotoxicity
Notestcanbespecifiedtocoverthepossiblephytotoxicityofaformulationtoallcrops.Whenacropisnotmentionedintheinstructionsforuse,purchasersshouldcheckwiththesupplierthatthematerialissuitable,alwaysprovidedthatsuchauseisnotrestrictedorlegallyforbidden.
Wettingofcrops
Thedilutesprayshouldsatisfactorilywettheleavesofthespecifiedcropswhenusedinaccordancewiththeinstructions.TestmethodMT53.2,CIPACF,p.162,maybeuseful.
1ShouldnationalpesticidespecificationsdevelopedfromtheseapprovedFAOspecificationsdeviatefromthem,theNationalAuthorityresponsibleformakingsuchchangesisrequestedtoinformtheFAOPlantProtectionServiceofthenatureof,andthereasonsfor,themodifications.
2MethodsofanalysisandmiscellaneoustechniquesreferredtointhesespecificationshavebeendevelopedandadoptedbyCIPAC(CollaborativeInternationalPesticidesAnalyticalCouncilLtd.).SeeCIPACHandbooks1(1970),1A(1980),1B(1983),1C(1985),D(1988),E(1993),CIPACProceedings1980and1981,obtainablefromBlackBearPressLimited,King'sHedgesRoad,CambridgeCB42PQ,England.Thepagenumbersofspecificmethodsaregiveninparenthesesinthespecifications.CopiesofmethodsnotyetpublishedcanbeobtainedfromtheFAOPlantProtectionService.
3InformationonstandardwatersforlaboratoryevaluationofpesticidalformulationswillbefoundinCIPACMonograph1,StandardWatersandanFAOSurveyonNaturallyOccurringWaters(1972),BlackBearPressLimited,King'sHedgesRoad,CambridgeCB4,England.
SUBMISSIONOFDRAFTSPECIFICATIONSTOFAO
Anyorganization,commercialfirmorinterestedindividualisencouragedtosubmitrelevantspecifications,orproposalsforrevisionofexistingspecifications,forpesticideproductsforconsiderationandpossibleadoptionbyFAO.CorrespondenceshouldbeaddressedtothePesticidesControlOfficer,PlantProductionandProtectionDivision,FAO,ViadelleTermediCaracalla,00100,Rome,Italy.
GeneralguidelinesinpreparingdraftspecificationsaregivenintheManualonthedevelopmentanduseofFAOandWHOSpecificationsforPlantProtectionProducts,FAOPlantProductionandProtectionPaperNo.173,Rome2002(RevisedFirstEditionavailableonlyontheFAOhomepageoftheInternetat:
http:
//www.fao.org/ag/agp/agpp/pesticid/)
Specificationswhichareconsideredsuitableforfurtherprocessingareassignedprioritiesandcirculatedtoappropriateorganizationsandspecialiststocomment.Comments,togetherwithotherrelevantinformation,arethenreviewedindetailbytheGrouponSpecificationsoftheFAOPanelofExpertsonPesticideSpecifications,RegistrationRequirements,ApplicationStandardsandPri
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