【英文标准名称】:Waterquality-Adsorptionofsubstancesonactivatedsludge-Batchtestusingspecificanalyticalmethods
【原文标准名称】:水质.活性污泥上物质的吸收.使用特定分析方法的批量检验
【标准号】:ISO18749-2004
【标准状态】:现行
【国别】:国际
【发布日期】:2004-02
【实施或试行日期】:
【发布单位】:国际标准化组织(ISO)
【起草单位】:ISO/TC147
【标准类型】:()
【标准水平】:()
【中文主题词】:质量;水质;测定;污泥;批量检验;定义;含量测定;污水处理厂;表面吸附;水;分析方法;水质试验;活性污泥;水常规;方法
【英文主题词】:
【摘要】:ThisInternationalStandardspecifiesascreeningtestmethodforthedeterminationofthedegreeofadsorptionofsubstancesontotheactivatedsludgeorprimarysludgeinawastewatertreatmentplant.TheconditionsdescribedinthisInternationalStandardnormallycorrespondtotheoptimumconditionsfortheadsorptiontooccuratthechosenactivated-sludgeconcentrationandwaterhardnessduringthetestperiod.Themethodappliestosubstancesforwhichananalyticalmethodwithsufficientaccuracyisavailableandwhich,undertheconditionsofthetestandatthetestconcentrationused,a)arewater-soluble;b)or,ifonlyslightlywater-soluble,allowsufficientlystablesuspensions,dispersionsoremulsionstobeprepared;c)arenotsignificantlyremovedfromthetestsolutionduringthetestbyknownabioticprocessessuchasstrippingorfoaming;d)donotdeflocculateactivatedsludge;e)arenotreadilybiodegradable(foradiscussionofbiodegradability,seeISO/TR15462).Animportantparameterthatcaninfluencethereliabilityofthetestresultsisthestabilityofthetestcompoundduringthetest.Ifnoinformationonthestabilityisavailable,itisrecommendedthatthisbecheckedbeforethetest.Ifanytransformation(e.g.duetohydrolysis)isobserved,itisrecommendedthatthedegreeofadsorptionofthetransformationproductsbedetermined,ifpossible.Sincebiodegradabilityofthetestcompoundmayalsoleadtoanincorrectassessmentofthedegreeofadsorption,itisrecommendedthatthebiodegradabilitybeinvestigatedinadvanceusingstandardbiodegradationtestswhicharepreferablybasedonoxygenconsumptionoroncarbondioxideproductionandinwhichadsorptionhasnoinfluenceonthetestresult.Ifbiodegradationcannotbeexcluded,sterilizedsludgemaybeused(seeClause7).Thereisgenerallynoneedtocarryoutadsorptiontestsonsubstanceswhicharereadilybiodegradableastheyaresufficientlyremovedbiologicallyinwastewatertreatmentplants.Substanceswhichareeasilyadsorbedonactivatedsludgeinwastewatertreatmentplantsarepreferablyremovedbyadsorbingtheminsludgedigestersanddegradingthemanaerobically.Forsuchsubstances,highadsorptionmaybeareasonforcarryingoutanaerobicbiodegradationtests.AnoverviewofstandardizedbiodegradationtestsisgiveninISO/TR15462.Thetestcompoundconcentrationsusedinthismethodareusuallyverylowandthereforenonegativeeffectsaretobeexpectedonthecapacityoftheactivatedsludgetoadsorbeventoxictestcompounds.Whenthereisanydoubt,itisrecommendedthatmicroscopicinvestigationsofthefloesandsuitabletoxicitytestssuchasthatspecifiedinISO8192becarriedout.
【中国标准分类号】:Z16
【国际标准分类号】:13_060_70
【页数】:10P;A4
【正文语种】:英语


【英文标准名称】:Ironores--Determinationofmanganesecontent--Part1:Flameatomicabsorptionspectrometricmethod
【原文标准名称】:铁矿石.锰含量测定.第1部分:火焰原子吸收光谱法
【标准号】:JISM8215-1-2006
【标准状态】:现行
【国别】:日本
【发布日期】:2006-10-20
【实施或试行日期】:
【发布单位】:日本工业标准调查会(JP-JISC)
【起草单位】:TechnicalCommitteeonIronandSteel
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:この規格は,鉄鉱石中のマンガンを原子吸光法によって定量する方法について規定する。
【中国标准分类号】:D31
【国际标准分类号】:73_060_10
【页数】:14P;A4
【正文语种】:日语