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【英文标准名称】:StandardTestMethodforLowLevelsofColiphagesinWater
【原文标准名称】:水中低水平大肠菌噬体的标准测试方法
【标准号】:ASTMD6734-2001
【标准状态】:现行
【国别】:
【发布日期】:2001
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:D19.24
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:coliformbacteria;coliphage;fecalcoliformbacteria;indicatorsofpollution;rapidtests
【摘要】:Coliphageorganismsmayserveasindicatorsoffecalcontamination.Thepresenceofcoliphagesinwaterintheabsenceofadisinfectantindicatestheprobablepresenceoffecalcontamination.Theabsoluterelationshipbetweenthenumberofcoliformsandcoliphagesinnaturalwatershasnotbeenconclusivelydemonstrated.Coliphagesaregenerallymoreresistantthancoliformstochlorinationandmayhavesomeadvantageovercoliformsasanindicatoroftreatmentefficiencyindisinfectedwaters.Thedetectionofcoliphagesinawatersampledependsupontheuseofasensitivehoststraininthecoliphageassay.Coliphagesmaybedetectedbythisconcentrationprocedurein6.5htoprovideimportantsame-dayinformationonthesanitaryqualityofwater.Thelowerdetectionlimitofthisconcentrationprocedureis1coliphagepervolumeofwatersampletested.1.1ThistestmethodcoversthedeterminationofcoliphagesinfectiveforE.coliCinwater.Thetestmethodissimple,inexpensive,andyieldsanindicationofwaterqualitywithin6.5h.Thiscoliphagemethodcandeterminecoliphagesinwaterdownto1coliphagepervolumeofwatersampled.1.2Thetestmethodisapplicabletonaturalfreshwatersamplesandtosettled,filteredorfinishedwatersamples.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:Z16
【国际标准分类号】:07_100_20
【页数】:6P.;A4
【正文语种】: