PlasticShoppingbagstestingProcedure

PlasticSHOPPINGBAGS2015.01.26购物袋Shoppingbags•以袋子材质不同可分为：塑料袋类；纸、纸基类；无纺布类；棉麻类等。•Withdifferentmaterials,bagscanbedividedinto:plasticbags;paper,paperbase;nonwovenfabrics;cottonetc.•以袋子的结构不同分为两型：提手型；无提手型•Withdifferentstructures,bagscanbedividedintotwotypes:handletype;no-handletype.•以袋子的设计分类可分为：广告型；知识型；礼品型；纪念型；简易型；趋时型；环保型。•Withdifferentdesigns,bagscanbedividedinto:advertising;knowledge;gifts;memorial;simple;fashion;environmentalprotection.目录•塑料购物袋的分类Classificationofplasticshoppingbags•塑料购物袋的测试要求TestrequirementsofPlasticshoppingbags•塑料购物袋的测试方法TestmethodsofPlasticshoppingbags塑料购物袋Plasticshoppingbags--GBT21660-2008&GBT21661-2008&GBT21662-2008塑料购物袋的分类Classificationofplasticshoppingbags•塑料购物袋Plasticshoppingbags以树脂为主要原料制得的，在销售、服务等场所用于盛装及携提商品的袋制品。Thiskindofshoppingbagsismadeofresinasthemainrawmaterialwhichusedinthesales,serviceandotherplacesforholdingandcarryinggoods.•淀粉基塑料购物袋Starch-basedplasticshoppingbags此类购物袋以改性淀粉为主要原料，适当添加少量其它可降解材料以改善其性能，且淀粉含量不小于15%。该塑料购物袋使用后抛弃在野外可自然降解。Thiskindofshoppingbagsismadeofmodifiedstarchwhichisnolessthan15%asthemainrawmaterialbyappropriatelyaddingsmallamountofotherbiodegradablematerialstoimproveitscapability.Itcanbenaturallydegradedafterbeingusedandabandonedinthefield.•降解塑料购物袋Degradableplasticshoppingbags此类购物袋以可完全降解塑料为原料生产，具有完全降解性能。在自然界如土壤或沙土等条件下，或特定条件如堆肥化或厌氧消化条件下或水性培养液中，有自然界存在的微生物作用引起的降解，并最终完全降解变成二氧化碳、甲烷、水及其所含元素的矿化无机盐及新的生物质。Thiskindofshoppingbagsismadeofcompletedegradableplasticsasrawmaterialwithcompletedegradationperformance.Therewillbedegradationcausedbytheactionofmicroorganismsinnatureunderconditionssuchassoil,sandysoilorspecificconditionssuchascompostingoranaerobicdigestionorinaqueousmedium.Andeventuallycompletelydegradedintocarbondioxide,methane,water,mineralizedinorganicsaltsofcontainedelementsandnewbiomass.塑料购物袋的测试要求TestrequirementsofPlasticshoppingbags*试样状态调节和试验环境应满足GBT2918-1998中规定的标准环境（温度23±2℃，湿度50%±10%）进行，并在此条件下进行试验。状态调节时间应不小于4h.•标识Identification标识分：基本标识、标志、标识颜色、标志制作、标识数量、标志设置位置、生产厂家及标识举例。Classification:basicidentification,identificationofcolor,symbol,signmaking,numberofidentification,positionsofsymbolsetting,manufacturersandexamples.基本标识：表示方法、塑料购物袋名称（如塑料购物袋、降解塑料购物袋、淀粉基塑料购物袋）、标准编号、规格（长*宽+折边*厚度，单位mm）、公称承重（单位为kg）等。塑料购物袋标志图形和名称共分三类，见表1。Table1.标志图形和名称序列Item图形pic名称definition1可回收再生利用recyclable&renewable2不可回收再生利用Unrecyclable&unrenewable3含回收再加工利用塑料制成Plasticrecyclable&renewable标志：塑料购物袋标志有图形符号、代号（见图表2）、安全性说明、补充性说明、材质与组分等。Symbol:symbolsofplasticshoppingbagsincludinggraphicalsymbols,code(seetable2),safetyinstructions,complementaryexplanation,materialsandcomponents.图表2部分塑料购物袋常用的塑料主要原料缩略语、名称及代号Table2:SomePlasticshoppingbagscommonlyusedplasticmainrawmaterial,thenameandcodenameabbreviation•尺寸偏差-Dimensionaldeviation1).厚度偏差：塑料购物袋的厚度应不小于0.025mm。厚度极限偏差及平均偏差应符合表3的规定。Thicknessdeviation:Thicknessofplasticshoppingbagsshouldnotbelessthan0.025mm.Limitthicknessdeviationandaveragedeviationshouldcomplywiththeprovisionsoftable3asbelow:Table3.ThicknessdeviationThenominalthicknesse/mmThelimitthickness/mmAveragedeviationthickness/%0.025+0.0080+1500.027≤e＜0.030+0.008-0.002+12-60.030≤e＜0.035+0.008-0.005+10-100.035≤e＜0.040+0.009-0.009+9-9e≥0.040+0.010-0.010+9-92).宽度偏差DeviationofwidthTable4.宽度偏差3).长度偏差DeviationoflengthTable5.长度偏差公称宽度w极限偏差/mmw≤380±20380＜w＜600±25w≥600±30公称长度l极限偏差/mml≤380±20380＜l＜600±25l≥600±30•感官-Sense1).颜色：塑料购物袋一般为树脂本色或白色，其他颜色由供需双方商定。1).Color:normally,thecolorofplasticshoppingbagsisresincolororwhite,othercolorsdiscussedanddecidedbybothsidesofsupplyanddemand.2).异嗅：塑料购物袋不应有明显的异嗅。2).Odor:plasticshoppingbagsshouldnothavetheobviousodor.3).外观：袋膜应均匀、平整，不应存在有碍使用的起泡、穿孔(不包括透气孔)、塑化不良、鱼眼、僵块、丝纹、挂料线、皱褶(不包括折边等正常引起的折痕)等瑕疵。3.)Appearance:Plasticfilmshouldbeuniform,smooth,withnofoamingimpedingtheuse,perforation(notincludingtheairhole),plasticating,fisheye,stiffblock,threads,hanginglines,wrinkles(notincludingcreasescausedbynormalhem,etc.)andotherdefects4).印刷质量：有印刷的塑料购物袋其印刷的油墨应均匀，图案和文字应清晰、完整，印刷剥离率应小于20%。4).Theprintingquality:printinginkofprintedplasticshoppingbagsshouldbeuniform,thepatternandthetextshouldbeclear,complete,thestrippingrateshouldbelessthan20%.•物理学性能-Physicsproperties物理学性能应符合表6和表7的要求。•取样：从塑料购物袋上取足够数量的试样，进行试验•Sampling:Takeasufficientnumberofstylefromplasticshoppingbagstotest.•试样状态调节和测试条件:按照GB/T2918-1998中规定的标准环境（温度23±2℃，湿度50±10%）进行，并在此条件下进行试验。状态调节时间应不小于4h。•TestConditions—AccordingtothestandardcircumstanceinGB/T2918-1998:Conductthetestsat23±2℃(73.4±3.6℉)and50±10%relativehumidityunlessotherwisespecifiedbyagreementortherelevantASTMmaterialspecification.Conditioningtimeshouldnotbelessthan4hours.塑料购物袋的测试方法TestmethodofPlasticshoppingbags•厚度测量方法：将塑料购物袋打开并剖开后，用测厚仪测量单面薄膜厚度。按照GB/T6672-2001的规定进行测量，袋宽度方向均匀选点测量，最后取平均厚度。塑料购物袋有压花或压纹时，应将压花或压纹平整地压平后测定压处厚度。•Methodformeasuringthethicknessofplasticshoppingbags:openandsplitthebags,measurethethicknessofsinglefilmwithathicknessgauge.ItisaccordingtoGB/Trulesof6672-2001whichrequestspickingpointsuniformlyonthedirectionofbagwidthandtakingtheaveragethickness.Embossingshouldbesmoothlyflattenedbeforedeterminingthethickness.选点测量应按等分试样长度的方法确定测量厚度的位置点，方法如下：Selectionofmeasurementshouldbedeterm