ISO 14851-1999 水介质中塑料材料富氧菌生物降解性的测定在一封闭呼吸器中测定需氧量的方法
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【英文标准名称】:Determinationoftheultimateaerobicbiodegradabilityofplasticmaterialsinanaqueousmedium-Methodbymeasuringtheoxygendemandinaclosedrespirometer
【原文标准名称】:水介质中塑料材料富氧菌生物降解性的测定在一封闭呼吸器中测定需氧量的方法
【标准号】:ISO14851-1999
【标准状态】:现行
【国别】:国际
【发布日期】:1999-05
【实施或试行日期】:
【发布单位】:国际标准化组织(IX-ISO)
【起草单位】:ISO/TC61
【标准类型】:()
【标准水平】:()
【中文主题词】:塑料;测定;定义;需氧量;试验;微生物;生物降解能力;有机化合物;好气菌;质量
【英文主题词】:Aerobicbacteria;Biodegradability;Definitions;Determination;Measurement;Microorganisms;Organiccompounds;Oxygendemand;Plastics;Quality;Respirometers;Testing
【摘要】:ThisInternationalStandardspecifiesamethod,bymeasuringtheoxygendemandinaclosedrespirometer,forthedeterminationofthedegreeofaerobicbiodegradabilityofplasticmaterials,includingthosecontainingformulationadditives.Thetestmaterialisexposedinanaqueousmediumunderlaboratoryconditionstoaninoculumfromactivatedsludge,compostorsoil.Ifanunadaptedactivatedsludgeisusedastheinoculum,thetestsimulatesthebiodegradationprocesseswhichoccurinanaturalaqueousenvironment;ifamixedorpre-exposedinoculumisused,themethodcanbeusedtoinvestigatethepotentialbiodegradabilityofatestmaterial.TheconditionsusedinthisInternationalStandarddonotnecessarilycorrespondtotheoptimumconditionsallowingmaximumbiodegradationtooccur,butthestandardisdesignedtodeterminethepotentialbiodegradabilityofplasticmaterialsorgiveanindicationoftheirbiodegradabilityinnaturalenvironments.Themethodenablestheassessmentofthebiodegradabilitytobeimprovedbycalculatingacarbonbalance(optional,seeannexE).Themethodappliestothefollowingmaterials:—Naturaland/orsyntheticpolymers,copolymersormixturesthereof.—Plasticmaterialswhichcontainadditivessuchasplasticizers,colorantsorothercompounds.—Water-solublepolymers.—Materialswhich,underthetestconditions,donotinhibitthemicroorganismspresentintheinoculum.Inhibitoryeffectscanbedeterminedusinganinhibitioncontrolorbyanotherappropriatemethod(seee.g.ISO8192).Ifthetestmaterialisinhibitorytotheinoculum,alowertestconcentration,anotherinoculumorapre-exposedinoculumcanbeused.
【中国标准分类号】:Z04
【国际标准分类号】:83_080_01
【页数】:22P;A4
【正文语种】:英语
【原文标准名称】:水介质中塑料材料富氧菌生物降解性的测定在一封闭呼吸器中测定需氧量的方法
【标准号】:ISO14851-1999
【标准状态】:现行
【国别】:国际
【发布日期】:1999-05
【实施或试行日期】:
【发布单位】:国际标准化组织(IX-ISO)
【起草单位】:ISO/TC61
【标准类型】:()
【标准水平】:()
【中文主题词】:塑料;测定;定义;需氧量;试验;微生物;生物降解能力;有机化合物;好气菌;质量
【英文主题词】:Aerobicbacteria;Biodegradability;Definitions;Determination;Measurement;Microorganisms;Organiccompounds;Oxygendemand;Plastics;Quality;Respirometers;Testing
【摘要】:ThisInternationalStandardspecifiesamethod,bymeasuringtheoxygendemandinaclosedrespirometer,forthedeterminationofthedegreeofaerobicbiodegradabilityofplasticmaterials,includingthosecontainingformulationadditives.Thetestmaterialisexposedinanaqueousmediumunderlaboratoryconditionstoaninoculumfromactivatedsludge,compostorsoil.Ifanunadaptedactivatedsludgeisusedastheinoculum,thetestsimulatesthebiodegradationprocesseswhichoccurinanaturalaqueousenvironment;ifamixedorpre-exposedinoculumisused,themethodcanbeusedtoinvestigatethepotentialbiodegradabilityofatestmaterial.TheconditionsusedinthisInternationalStandarddonotnecessarilycorrespondtotheoptimumconditionsallowingmaximumbiodegradationtooccur,butthestandardisdesignedtodeterminethepotentialbiodegradabilityofplasticmaterialsorgiveanindicationoftheirbiodegradabilityinnaturalenvironments.Themethodenablestheassessmentofthebiodegradabilitytobeimprovedbycalculatingacarbonbalance(optional,seeannexE).Themethodappliestothefollowingmaterials:—Naturaland/orsyntheticpolymers,copolymersormixturesthereof.—Plasticmaterialswhichcontainadditivessuchasplasticizers,colorantsorothercompounds.—Water-solublepolymers.—Materialswhich,underthetestconditions,donotinhibitthemicroorganismspresentintheinoculum.Inhibitoryeffectscanbedeterminedusinganinhibitioncontrolorbyanotherappropriatemethod(seee.g.ISO8192).Ifthetestmaterialisinhibitorytotheinoculum,alowertestconcentration,anotherinoculumorapre-exposedinoculumcanbeused.
【中国标准分类号】:Z04
【国际标准分类号】:83_080_01
【页数】:22P;A4
【正文语种】:英语
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