DIN EN 29408-1993 水质.封闭的呼吸器里测定需氧量的水介质中有机物最大需氧生物降解性的测定
时间:2024-05-16 23:45:08 来源: 标准资料网 作者：标准资料网 阅读：8554
【英文标准名称】:Waterquality;evaluationinanaqueousmediumofthe"ultimate"aerobicbiodegradabilityoforganiccompounds;methodofdeterminingtheoxygendemandinaclosedrespirometer(ISO9408:1991);GermanversionEN29408:1993
【原文标准名称】:水质.封闭的呼吸器里测定需氧量的水介质中有机物最大需氧生物降解性的测定
【标准号】:DINEN29408-1993
【标准状态】:作废
【国别】:德国
【发布日期】:1993-04
【实施或试行日期】:
【发布单位】:德国标准化学会(DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:水有机物;需氧量;水化学;水;微生物;好气菌;有机物质;生化需氧量;水常规(实验);水污染;降解能力;生物降解能力;标准方法;水质;质量
【英文主题词】:biodegradability;waterpollution;degradability;waterquality;quality;biochemicaloxygendemand;microorganisms;organicmatters;oxygendemand;waterorganism;standardmethods;chemistryofwater;water;aer
【摘要】:
【中国标准分类号】:C51;Z16
【国际标准分类号】:4799
【页数】:19P;A4
【正文语种】:德语
【英文标准名称】:GeneratorSetswithReciprocatingInternalCombustionEngines;ConnectionDimensionsforGeneratorsandReciprocatingInternalCombustionEngines
【原文标准名称】:往复式内燃机的发电机组；发电机与往复式内燃机的连接尺寸
【标准号】:DIN6281-1978
【标准状态】:现行
【国别】:德国
【发布日期】:1978-04
【实施或试行日期】:
【发布单位】:德国标准化学会(DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:发电;发电机;外壳;飞轮;内燃机;机械工程;同步发电机;往复式内燃机;柴油发动机;公差;尺寸
【英文主题词】:
【摘要】:GeneratorsetswithRIC-engines,connectingdimensionsforgeneratorsandRIC-engines
【中国标准分类号】:K52
【国际标准分类号】:1480
【页数】:2P;A4
【正文语种】:德语
【英文标准名称】:Postalservices-Qualityofservice-Measurementofthetransittimeofend-to-endservicesforbulkmail(includesAmendmentA1:2007);EnglishversionofDINEN14534:2007-06
【原文标准名称】:邮政服务.服务质量.批量邮件点对点服务运送时间的测量(包括修改件A1:2007)
【标准号】:DINEN14534-2007
【标准状态】:现行
【国别】:德国
【发布日期】:2007-06
【实施或试行日期】:
【发布单位】:德国标准化学会(DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:定义;持续时间;跨边界;信函;邮政;数学计算;测量系统;方法学;方法;办公系统;性能;性能规范;时期;邮寄;邮政服务;质量保证;品质监查;质量控制;质量要求;随机抽样调查;表示法;运行时间;服务设施;试运行;时间测量
【英文主题词】:
【摘要】:ThisEuropeanStandardspecifiesmethodsformeasuringtheend-to-endtransittimeofthedomesticandcross-border,priorityandnon-priority,bulkmail,collected,processedanddistributedbypostalserviceoperators.Itconsidersmethodsusingarepresentativeend-to-endsampleofaddressedbulkmailEnd-to-endisdefinedasfromthepointmailisplacedintothecollection/acceptancesystemundertheresponsibilityofthepostaloperators,tothefinaldeliverypointundertheresponsibilityofthepostaloperators.ForthepurposeofthisEuropeanStandard,bulkmailcanincludealltypesofaddressedbulkmail:lettermail,directmail,magazines,andnewspapers,unlessotherwiseindicated.TheoverallqualityofserviceresultshouldbeexpressedasthepercentageofmaildeliveredwithinJ+ndaysend-to-endaccordingtotheECpostaldirectiveorthepercentageofmaildeliveredby,onorbetweenexpecteddates.Themeasurementshouldbeinwholedaysandnotberestrictedbyreferencetoaspecifictimeofdayfordelivery.Thisqualityofserviceindicatordoesnotmeasurethepostaloperator'soverallperformanceinawaywhichprovidesdirectcomparisonofpostalserviceoperators,anddoesnotincludeotherserviceperformanceindicatorsthanthoserelatedtotransittime.InparticularthisEuropeanStandarddoesnotmeasurewhetherthetimingofcollectionsmeetscustomers'requirements.TheEuropeanStandardcanbeusedtoassesstheperformanceofpostaloperatorsforspecificproductsorservicesatanationallevelorforanindividualoragroupofcustomers.TheEuropeanStandardshouldnotbeusedtoassesstheoverallperformanceofagroupofproductsorserviceswhichhaveotherservicespecificationsintermsoftransittimeexpectation.Itspecifiesasetofrequirementsforthedesignofaqualityofservicemeasurementsystemforbulkmail,involvingtheselectionanddistributionoftestmailsentandreceivedbyselectedpanellists.Thetestmailsampledesigngivesthespecificationsforthemailtoberepresentativeofrealmailflows.ThisEuropeanStandardrelatestothemeasurementofservicesofferedtobusinessesthathavepickupsattheirofficesorgivetheirmailtopostalserviceoperators.Ifathirdpartyagentactsforthepostaloperatorthenthetimethemailishandedovertotheagentshouldformpartofthemeasurement.Whereathirdpartyagentactsforthesendingcustomerthenthemeasurementshouldbefromthepointwhenmailishandedovertothepostaloperator.FortechnicalreasonstheEuropeanStandardmaynotinallpartsbesuitableforthemeasuringofverysmallvolumesofmailandforoperatorswithlimitedcoverage.Itisnotapplicableformeasuringtheend-to-endtransittimedistributionofsinglepiecemailingswhichrequiredifferentmeasurementsystems.TheEuropeanStandardEN13850hasbeendevelopedforsinglepieceprioritymailandEN14508forsinglepiecenon-prioritymail.ThisEuropeanstandardincludesspecificationsforthequalitycontrolandauditingofthemeasurementsystem.IncertaincircumstancesthisEuropeanStandardallowsachoicebetweenalternativesordeviationstobemadesubjecttotheapprovaloftheregulator.Thisapprovalisonlynecessaryiftheproductorserviceiswithintheuniversalserviceobligation.
【中国标准分类号】:M80
【国际标准分类号】:03_240
【页数】:66P;A4
【正文语种】:英语