NF L13-123-1998 航空航天系列.镍基合金NI-B46001(NiCo20Si5B3).钎焊用填充金属.带

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【英文标准名称】:Materialsandarticlesincontactwithfoodstuffs-Plastics-Alternativetestmethodstomigrationintofattyfoodsimulantsbyrapidextractionintoiso-octaneand/or95%ethanol
【原文标准名称】:与食品接触的材料和制品.塑料.快速萃取异辛烷和或95%酒精的脂肪食品塑料析出物渗移量的交替试验方法
【标准号】:BSEN1186-15-2002
【标准状态】:现行
【国别】:英国
【发布日期】:2002-10-14
【实施或试行日期】:2002-10-14
【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】:物品;触点;酒精;萃取;脂肪;食品检验;食品包装;食品;食品料;浸渍;试验研究;异辛烷;材料;接触食品的材料;材料规范;材料测试;迁移;抗渗移性;塑料;试验媒体;试件;试验
【英文主题词】:Articles;Contact;Ethanol;Extraction;Fats;Foodinspection;Foodpackages;Foodproducts;Foodstuff;Immersion;Investigations;Isooctane;Materials;Materialsincontactwithfood;Materialsspecification;Materialstesting;Migration;Migrationresistance;Plastics;Testmedia;Testpieces;Testing
【摘要】:ThisEuropeanStandardspecifiestwoalternativetestmethods,inthesenseofanextractiontestwitha'moresevere'testcharacter,fortheassessmentoftheoverallmigrationintofattyfoodsimulants.MethodAisbasedonthedeterminationoftheextractionofmigrateablesubstancesfromplasticswhichareintendedtocomeintocontactwithfoodstuffs,bytotalimmersioninnon-polar,iso-octane,and/orpolar,ethanol,solventsdependingonthepolarityofthepackagingmaterial.Accordingtoresultsobtainedbythismethod(see[1],[2],[3],[4],[5])andtakingphysio-chemicalconsiderationsintoaccount,theobtainedextractionefficiencyhas,generally,beenfoundtobeequivalenttoorhigherthanoverallmigrationresultsobtainedunderthetestconditions,10daysat40°C,2hat70°C,1hat100°C,30minat121°Cand30minat130°C.Toensureascompleteaspossibleextractionofthepotentialmigrants,astronginteraction,e.g.swelling,ofthesamplebytheextractionsolventisnecessary.Forthispurpose,iso-octaneisusedasanextractionsolventforplasticsmaterialsandarticlescontainingnonpolarfoodcontactlayers,suchaspolyolefins.Fortestsamplesmadefrompolarfoodcontactplasticssuchaspolyamideandpolyethyleneterephthalate,95%(v/v)aqueousethanolisused.Forpolystyrenes,plasticizedpolyvinylchlorideandotherpolymerswheretheidentificationorpolarityofthepolymerisnotclear,twoparallelextractiontestsshouldbeconductedusingbothoftheproposedextractionsolventsandtakingthehighervalueobtainedastherelevantresult.NOTE1Incaseofmultilayerstructuressuchasplasticslaminatesandco-extrudedplastics,thenatureofthefoodcontactlayerdeterminestheselectionoftheextractionsolvent(s).Thistestmethodshouldonlybeappliedtoflexiblepackagingswhicharelessthan300μminthickness.WhentheresultdoesnotexceedtheallowedoverallmigrationlimitthenthematerialcanbeconsideredtobeincompliancewithECregulations.Ifthetestresultexceedstheallowedoverallmigrationlimitthefollowingoptionsmaybeappliedchronologicallywithrespecttofurthermigrationtesting:1)single-sidedextractiontestusingacell,iftechnicallyfeasible(seeclause4MethodBofthisstandard);2)conventionalmigrationtestusingoliveoilorotherfattyfoodsimulants;NOTE2TheoverallmigrationlimitisspecifiedinCommissionDirective90/128/EEC[7]andtheconditionsoftestinCouncilDirective82/711/EEC[8]anditssubsequentamendments,[9],[10].MethodBisapplicableinthosecaseswherethetotalimmersiontest,EN1186-15MethodA,yieldstotalextractionvaluesthatexceedtheoverallmigrationormaybetechnicallyunsuitable,i.e.inthecaseofmultilayerstructures,suchasplasticslaminatesandco-extrudedfilms.Thistestmethodshouldprimarilyonlybeappliedtoflexiblepackagingswithaphysicalbarrierlayer(forinstanceofaluminiumorothermaterialtopreventpenetrativelossofextractionsolvent)andwhichhaveathinnerfoodcontactlayerthan300μm.IftheresultdoesnotexceedtheallowedoverallmigrationlimitthenthematerialcanbeconsideredtobeincompliancewithECregulations.Ifthetestresultexceedstheallowedoverallmigrationlimitthenthefollowingoptionmaybeappliedwithrespecttofurthermigrationtesting:-conventionalmigrationtestusingoliveoilorotherfattyfoodsimulants.NOTE3MethodsAandBarenotapplicabletotestmaterialsintendedforapplicationsover130°C.NOTE4Testmaterialsintendedforapplicationsover70°Cshouldbecheckedfortheirphysicalsuitabilityattheintendedtimeandtemperatureofuse.
【中国标准分类号】:X08;C53
【国际标准分类号】:67_250
【页数】:20P;A4
【正文语种】:英语


【英文标准名称】:Windingwires-Testmethods-Part3:Mechanicalproperties
【原文标准名称】:绕组线试验方法第3部分:机械性能
【标准号】:IEC60851-3-1996
【标准状态】:作废
【国别】:国际
【发布日期】:1996-10
【实施或试行日期】:
【发布单位】:国际电工委员会(IX-IEC)
【起草单位】:IEC/TC55
【标准类型】:()
【标准水平】:()
【中文主题词】:绝缘线;断裂伸长;回弹性;特性;电线;试验方法;电气工程;绕组线;延伸性;材料的机械性能;试验;粘结强度;机械性能;机械试验;延伸;绕组;金属线;粘附
【英文主题词】:Adhesion;Adhesivestrength;Electricwires;Electricalengineering;Elongation;Elongationatfracture;Enamelled;Enamelledwires;Extensibility;Heatbonding;Insulatedwires;Mechanicalproperties;Mechanicalpropertiesofmaterials;Mechanicaltesting;Properties;Resilience;Roundwires;Scrapingforces;Testing;Windingwires;Windings;Wires
【摘要】:ThispartofIEC60851specifiesthefollowingmethodsoftest:-Test6:Elongation;-Test7:Springiness;-Test8:Flexibilityandadherence;-Test11:Resistancetoabrasion;-Test18:Heatorsolventbonding.Fordefinitions,generalnotesonmethodsoftestandthecompleteseriesofmethodsoftestforwindingwiresseeIEC60851-1.
【中国标准分类号】:K12
【国际标准分类号】:29_060_10
【页数】:51P;A4
【正文语种】:英语