BS DD CEN/TS 14234-2003 与食品接触的材料和物品.纸和纸板的聚合物涂层.总迁移的条件和试验方法的选择指南

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【英文标准名称】:Materialsandarticlesincontactwithfoodstuffs-Polymericcoatingsonpaperandboard-Guidetotheselectionofconditionsandtestmethodsforoverallmigration
【原文标准名称】:与食品接触的材料和物品.纸和纸板的聚合物涂层.总迁移的条件和试验方法的选择指南
【标准号】:BSDDCEN/TS14234-2003
【标准状态】:现行
【国别】:英国
【发布日期】:2003-01-30
【实施或试行日期】:2003-01-30
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:耐迁移;酒精;触点;定义;作标记;试验条件;接触食品的材料;食品包装;容器;试验;迁移;目的;纸板;聚合材料;物品;塑料;食品;覆层;材料规范;材料;指导手册;方法;塑料制品;纸;选择
【英文主题词】:Articles;Board(paper);Coatings;Contact;Containers;Definition;Definitions;Ethanol;Foodpackages;Foodproducts;Guidebooks;Marking;Materials;Materialsincontactwithfood;Materialsspecification;Methods;Migration;Migrationresistance;Objects;Paper;Plastics;Plasticsproducts;Polymericmaterials;Selection;Testing;Testingconditions
【摘要】:ThisTechnicalSpecificationspecifiestestmethodsfor'alternativetests'and'substitutetests'performedwithvolatiletestmedia,iso-octaneandavolumefractionof95%aqueousethanol,forthedeterminationofoverallmigrationfrompolymericcoatingsonpaperandboardintendedtocomeintocontactwithfattyfoodstuffs.Atestmethodforoverallmigrationfrompolymericcoatingsintendedtocomeintocontactwithfattyfoodstuffsusingmodifiedpolyphenyleneoxide(MPPO)isinpreparation.AsuggestedtestschemeisgiveninFigureA.1.Ifthetestresultobtainedbythetotalimmersionmethod,describedinclause4ofthisTechnicalSpecification,exceedstheallowedoverallmigrationlimitthesingle-sidedmigrationtestusingacell,seeclause5,iftechnicallyfeasible;maybeused.Ifitisnotpossibletousethesinglesidedcellmethod,e.g.becauseofpinholes,useadsorptionbymodifiedpolyphenyleneoxide,(MPPO).Iso-octaneisusedasatestmediumfortestsamplescoatedwithnonpolarfoodcontactlayers,suchaspolyolefins.Fortestsamplescoatedwithpolarfoodcontactpolymerssuchaspolyamideandpolyethyleneterephthalate,avolumefractionof95%aqueousethanolisused.Forpolystyrenes,plasticisedpolyvinylchlorideandotherpolymerswheretheidentificationorpolarityofthepolymerisnotclear,twoparalleltestsshallbeconductedusingbothoftheproposedtestmediaandtakingthehighervalueobtainedastherelevantresult.Thereisanexpectationthatthescopeofthisdirectivewillbeextendedtocoverpolymericcoatingsonpaperandboard.The'substitutetests'describedinthisTechnicalSpecificationarebytotalimmersion,seeclause4andinamigrationcell,seeclause5.The'alternativetest'methodsdescribedherespecifiesarapidextractiontestwitha'moresevere'testcharacter,fortheassessmentoftheoverallmigrationintofattyfoodsimulants.Themethoddiffersfromthesubstitutetestmethodsonlyinthecombinationoftesttimeandtesttemperature.Themethodisbasedonthedeterminationoftheextractionofmigrateablesubstancesfrompolymericcoatedpaperorboard,whichareintendedtocomeintocontactwithfoodstuffs,bytotalimmersioninnon-polar,iso-octane,and/orpolar,ethanol,solventsdependingonthepolarityofthepolymericcoating.Accordingtotheresultsobtainedbythismethod,see[5],[6],[7],[8],[9]andtakingphysio-chemicalconsiderationsintoaccount,theobtainedextractionefficiencyhas,generally,beenfoundtobeequivalenttoorhigherthanoverallmigrationresultsobtainedusingfatsimulantD,underthetestconditions,10daysat40°C,2hat70°C,1hat100°C,30minat121°Cand30minat130°C.Thetestmethodshouldbeappliedtopolymercoatedpackagingswherethepolymerlayerislessthan300μminthickness.However,ifthisextractiontestisappliedtomaterialswithcoatingswithhigherthicknessthan300μmandtheresultdoesnotexceedanyallowedoverallmigrationlimitthenthemethodisconsideredtobesuitableforthosematerials.Inthosecaseswheretherapidextractiontestbytotalimmersion,yieldstotalextractionvaluesthatexceedtheoverallmigrationlimitormaybetechnicallyunsuitableacelltestmethodusingthesametimeandtemperatureconditionsisapplicable.Thiscelltestmethodshouldprimarilyonlybeappliedtopackagingswithaphysicalbarrierlayer(forinstanceofaluminiumorothermaterialtopreventpenetrativelossoftestmedium)andwhichhaveathinnerfoodcontactlayerthan300μm.Thistestmethodcannotbeappliedifthepolymericcoatingisshowntohavepinholes.
【中国标准分类号】:X08
【国际标准分类号】:67_250
【页数】:30P;A4
【正文语种】:英语