NF T76-004-2006 粘接剂.异氰酸盐含量测定

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【英文标准名称】:Adhesives-Determinationofisocyanatecontent.
【原文标准名称】:粘接剂.异氰酸盐含量测定
【标准号】:NFT76-004-2006
【标准状态】:现行
【国别】:法国
【发布日期】:2006-02-01
【实施或试行日期】:2006-02-05
【发布单位】:法国标准化协会(AFNOR)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:胶粘剂;分析;化学分析和试验;化学反应;定义;测定;含量测定;异氰酸酯;实验室试验;材料;材料试验;数学计算;塑料;试剂;试验设备;试样;试验
【英文主题词】:
【摘要】:
【中国标准分类号】:G38
【国际标准分类号】:83_180
【页数】:9P;A4
【正文语种】:其他


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【英文标准名称】:StandardTestMethodforDeterminingAerobicBiodegradationinSoilofPlasticMaterialsorResidualPlasticMaterialsAfterComposting
【原文标准名称】:测定堆肥处理后的塑料或残留塑料在土壤中有氧生物降解的标准试验方法
【标准号】:ASTMD5988-2003
【标准状态】:现行
【国别】:
【发布日期】:2003
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:D20.96
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:生物降解能力;土壤;塑料;实验室试验;试验方法;堆肥处理(废弃物)
【英文主题词】:aerobic;biodegradation;degree(ofbiodegradation);mineralization;plastics;soil
【摘要】:Thedegreeandrateofaerobicbiodegradabilityofaplasticmaterialintheenvironmentdeterminestheextenttowhichandtimeperiodoverwhichplasticmaybemineralized.Disposalisbecomingamajorissuewiththeincreasinguseofplastics,andtheresultsofthistestmethodmaypermitanestimationofthedegreeofbiodegradabilityandthetimeperiodoverwhichplasticswillremaininanaerobicsoilenvironment.Thistestmethoddeterminesthedegreeofaerobicbiodegradationbymeasuringevolvedcarbondioxideasafunctionoftimethattheplasticisexposedtosoil.Soilisanextremelyspecies-richsourceofinoculumforevaluationofthebiodegradabilityofplasticsintheenvironment.Whenmaintainedappropriatelywithregardtomoisturecontentandoxygenavailability,thebiologicalactivityisquiteconsiderable,althoughlowerthanotherbiologicallyactiveenvironments,suchasactivatedsewage-sludgeorcompost.Soilisalsotheapplicationtargetforcompostedmaterials,andthereforethebiodegradabilityofsuchmaterialsshouldbeevaluatedinthesoilenvironmentafterthematerialshavebeencomposted.Amixtureofsoilandmaturecompostcontainingcompostedplasticmaterial(asobtainedafterperformingTestMethodD5338)isthereforealsoanappropriatematrixforevaluationofthebiodegradabilityofplastics.1.1Thistestmethodcoversdeterminationofthedegreeandrateofaerobicbiodegradationofsyntheticplasticmaterials(includingformulationadditivesthatmaybebiodegradable)incontactwithsoil,oramixtureofsoilandmaturecompost,underlaboratoryconditions.1.2Thistestmethodisdesignedtoratethebiodegradabilityofplasticmaterialsrelativetoastandardinanaerobicenvironment.1.3Thistestmethodisdesignedtobeapplicabletoallplasticmaterialsthatarenotinhibitorytothebacteriaandfungipresentinsoilandcompost.1.4ThevaluesstatedinSIunitsaretoberegardedasthestandard.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.AspecifichazardstatementisgiveninSection8.1.6ThisASTMtestmethodisequivalenttoISO17556:2003.
【中国标准分类号】:G31
【国际标准分类号】:13_030_10
【页数】:5P.;A4
【正文语种】: