作者:标准资料网 时间:2024-05-13 01:33:26   浏览:9910   来源:标准资料网

【英文标准名称】:Plastics-Determinationoftheultimateanaerobicbiodegradationofplasticmaterialsinanaqueoussystem-Methodbymeasurementofbiogasproduction
【原文标准名称】:塑料.含水系统中塑料材料的最大厌氧生物降解能力的测定.生物气产生的测量方法
【标准号】:BSISO14853-2005
【标准状态】:现行
【国别】:英国
【发布日期】:2005-02-17
【实施或试行日期】:2005-02-17
【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】:生物气;试验;定义;降解能力;生物降解能力;厌气菌;含水的;塑料;材料;测定;堆肥处理(废弃物)
【英文主题词】:Anaerobicbacteria;Aqueous;Biodegradability;Biogases;Composting(waste);Definitions;Degradability;Determination;Materials;Plastics;Testing
【摘要】:ThisInternationalStandardspecifiesamethodforthedeterminationoftheultimateanaerobicbiodegradabilityofplasticsbyanaerobicmicroorganisms.TheconditionsdescribedinthisInternationalStandarddonotnecessarilycorrespondtotheoptimumconditionsforthemaximumdegreeofbiodegradationtooccur.Thetestcallsforexposureofthetestmaterialtosludgeforaperiodofupto60days,whichislongerthanthenormalsludgeretentiontime(25to30days)inanaerobicdigesters,thoughdigestersatindustrialsitescanhavemuchlongerretentiontimes.Themethodappliestothefollowingmaterials:—Naturaland/orsyntheticpolymers,copolymersormixturesthereof;—Plasticmaterialswhichcontainadditivessuchasplasticizers,colorantsorothercompounds;—Water-solublepolymers;—Materialswhich,underthetestconditions,donotinhibitthemicroorganismspresentintheinoculum.Inhibitoryeffectscanbedeterminedusinganinhibitioncontrolorbyanotherappropriatemethod(seee.g.ISO13641).Ifthetestmaterialisinhibitorytotheinoculum,alowertestconcentration,anotherinoculumorapre-exposedinoculumcanbeused.
【中国标准分类号】:G31
【国际标准分类号】:13_060_70;83_080_01
【页数】:38P.;A4
【正文语种】:英语