【英文标准名称】:Determinationoftheultimateaerobicbiodegradabilityofplasticmaterialsundercontrolledcompostingconditions-Methodbyanalysisofevolvedcarbondioxide-Generalmethod
【原文标准名称】:塑料材料在受控堆肥环境下最终需氧生物降解能力的测定.释放二氧化碳的分析方法.第1部分:通用方法
【标准号】:BSENISO14855-1-2007
【标准状态】:现行
【国别】:英国
【发布日期】:2007-09-28
【实施或试行日期】:2007-09-28
【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】:好气菌;分析;生物降解能力;碳;二氧化碳;化学分析和测试;堆肥处理(废弃物);分解;定义;变坏;解释;测量;方法;有机化合物;塑料;塑料制品;污染控制;试验报告;测试;废弃物
【英文主题词】:Aerobicbacteria;Analysis;Biodegradability;Carbon;Carbondioxide;Chemicalanalysisandtesting;Composting(waste);Decomposition;Definitions;Deterioration;Disintegration;Interpretations;Measurement;Methods;Organiccompounds;Plastics;Plasticsproducts;Pollutioncontrol;Testreports;Testing;Wastes
【摘要】:ThispartofISO14855specifiesamethodforthedeterminationoftheultimateaerobicbiodegradabilityofplastics,basedonorganiccompounds,undercontrolledcompostingconditionsbymeasurementoftheamountofcarbondioxideevolvedandthedegreeofdisintegrationoftheplasticattheendofthetest.Thismethodisdesignedtosimulatetypicalaerobiccompostingconditionsfortheorganicfractionofsolidmixedmunicipalwaste.Thetestmaterialisexposedtoaninoculumwhichisderivedfromcompost.Thecompostingtakesplaceinanenvironmentwhereintemperature,aerationandhumidityarecloselymonitoredandcontrolled.Thetestmethodisdesignedtoyieldthepercentageconversionofthecarboninthetestmaterialtoevolvedcarbondioxideaswellastherateofconversion.Subclauses8.6and8.7specifyavariantofthemethod,usingamineralbed(vermiculite)inoculatedwiththermophilicmicroorganismsobtainedfromcompostwithaspecificactivationphase,insteadofmaturecompost.Thisvariantisdesignedtoyieldthepercentageofcarboninthetestsubstanceconvertedtocarbondioxideandtherateofconversion.TheconditionsdescribedinthispartofISO14855maynotalwayscorrespondtotheoptimumconditionsforthemaximumdegreeofbiodegradationtooccur.
【中国标准分类号】:G31
【国际标准分类号】:13_030_99;83_080_01
【页数】:28P.;A4
【正文语种】:英语