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【英文标准名称】:Waterquality-Evaluationofultimateaerobicbiodegradabilityoforganiccompoundsinaqueousmediumbydeterminationofoxygendemandinaclosedrespirometer
【原文标准名称】:水质通过在封闭的透气性测定器中需氧量的测定来评定有机化合物在水介质中的最大需氧生物降解能力的方法
【标准号】:ISO9408-1999
【标准状态】:现行
【国别】:国际
【发布日期】:1999-08
【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/TC147
【标准类型】:()
【标准水平】:()
【中文主题词】:生物降解能力;有机化合物;微生物;需氧量;试验;试验;质量;水;定义;测定
【英文主题词】:Aerobicbacteria;Biochemicaloxygendemand;Biodegradability;Chemistryofwater;Definitions;Degradability;Determination;Microorganisms;Organiccompounds;Organicmatters;Oxygendemand;Quality;Standardmethods;Testing;Water;Waterorganisms;Waterpollution;Waterpractice;Waterquality
【摘要】:ThisInternationalStandardspecifiesamethod,bydeterminationoftheoxygendemandinaclosedrespirometer,fortheevaluationinaqueousmediumoftheultimatebiodegradabilityoforganiccompoundsandwastewatersatagivenconcentrationbyaerobicmicroorganisms.Themethodappliestoorganiccompoundswhicha)arewater-solubleundertheconditionsofthetest;b)arepoorlywater-solubleundertheconditionsofthetest,inwhichcasespecialmeasuresmaybenecessarytoachievegooddispersionofthecompound(seeforexample,ISO10634);c)donotreachandreactwiththeCO2absorbent;d)arevolatile,providedthatasuitablerespirometerorsuitableconditions(e.g.asmallerratioofvolumeheadspacetovolumeliquidmedium)areused;e)arenotinhibitorytothetestmicroorganismsattheconcentrationchosenforthetest.Thepresenceofinhibitoryeffectscanbedeterminedasspecifiedin7.3,orbyusinganyothermethodfordeterminingtheinhibitoryeffectofacompoundonbacteria(see,forexample,ISO8192).NOTETheconditionsdescribedinthisInternationalStandarddonotalwayscorrespondtotheoptimalconditionsforallowingthemaximumdegreeofbiodegradationtooccur.Foralternativebiodegradationmethods,seeISO15462.
【中国标准分类号】:Z16
【国际标准分类号】:13_060_70
【页数】:18P.;A4
【正文语种】:英语