ASTM D5392-1993(2006) 用两步膜滤法分离和计数水中大肠杆菌的标准试验方法
作者:标准资料网 时间:2024-05-22 08:30:49 浏览:8616
来源:标准资料网
下载地址: 点击此处下载
【英文标准名称】:StandardTestMethodforIsolationandEnumerationofEscherichiaColiinWaterbytheTwo-StepMembraneFilterProcedure
【原文标准名称】:用两步膜滤法分离和计数水中大肠杆菌的标准试验方法
【标准号】:ASTMD5392-1993(2006)
【标准状态】:现行
【国别】:
【发布日期】:1993
【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】:荒废试验;水中疗养;薄膜过滤方法;水边;两步;水中大肠杆菌;排泄污染;试验;大肠杆菌;绝缘;水质试验;淡水;琼脂;处理;计算
【英文主题词】:ambientwaters;Escherichiacoli;fecalpollution;mTECagar;recreationalwaters;two-stepmembranefiltermethod;wastewaters
【摘要】:Thistestmethodisusefulformeasuringrecreationalwaterqualityandchlorinatedwastewaters,althoughitcanbeusedforanywatersuspectedofcontaminationbyfecalwastesofwarm-bloodedanimals.ThesignificanceoffindingE.coliinrecreationalwatersamples,especiallysamplesobtainedfromfreshrecreationalwaters,isthatthereisariskofgastrointestinalillness,directlyrelatedtotheE.colidensity,associatedwithswimming.4SincesmallorlargevolumesofwaterordilutionsthereofcanbeanalyzedbytheMFtechnique,awiderrangeoflevelsofE.coliinwatercanbedetectedandenumeratedthanwithothermethods.1.1Thistestmethoddescribesamembranefilter(MF)procedureforthedetectionandenumerationofEscherichiacoli,abacteriumfoundexclusivelyinthefecesofhumansandotherwarm-bloodedanimals.Thepresenceofthesemicroorganismsinwaterisanindicationoffecalpollutionandthepossiblepresenceofentericpathogens.Thesebacteriaarefoundinwaterandwastewaterinawiderangeofdensities.Thedetectionlimitofthisprocedureisonecolonyformingunit(CFU)pervolumefiltered.1.2Thistestmethodhasbeenusedsuccessfullywithtemperatefreshandmarineambientwaters,andwastewaters.Itistheuser''sresponsibilitytoensurethevalidityofthistestmethodforwatersofothertypes.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Forspecifichazardstatements,seeSection9.
【中国标准分类号】:C51;Z16
【国际标准分类号】:07_100_20
【页数】:5P.;A4
【正文语种】:
【原文标准名称】:用两步膜滤法分离和计数水中大肠杆菌的标准试验方法
【标准号】:ASTMD5392-1993(2006)
【标准状态】:现行
【国别】:
【发布日期】:1993
【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】:荒废试验;水中疗养;薄膜过滤方法;水边;两步;水中大肠杆菌;排泄污染;试验;大肠杆菌;绝缘;水质试验;淡水;琼脂;处理;计算
【英文主题词】:ambientwaters;Escherichiacoli;fecalpollution;mTECagar;recreationalwaters;two-stepmembranefiltermethod;wastewaters
【摘要】:Thistestmethodisusefulformeasuringrecreationalwaterqualityandchlorinatedwastewaters,althoughitcanbeusedforanywatersuspectedofcontaminationbyfecalwastesofwarm-bloodedanimals.ThesignificanceoffindingE.coliinrecreationalwatersamples,especiallysamplesobtainedfromfreshrecreationalwaters,isthatthereisariskofgastrointestinalillness,directlyrelatedtotheE.colidensity,associatedwithswimming.4SincesmallorlargevolumesofwaterordilutionsthereofcanbeanalyzedbytheMFtechnique,awiderrangeoflevelsofE.coliinwatercanbedetectedandenumeratedthanwithothermethods.1.1Thistestmethoddescribesamembranefilter(MF)procedureforthedetectionandenumerationofEscherichiacoli,abacteriumfoundexclusivelyinthefecesofhumansandotherwarm-bloodedanimals.Thepresenceofthesemicroorganismsinwaterisanindicationoffecalpollutionandthepossiblepresenceofentericpathogens.Thesebacteriaarefoundinwaterandwastewaterinawiderangeofdensities.Thedetectionlimitofthisprocedureisonecolonyformingunit(CFU)pervolumefiltered.1.2Thistestmethodhasbeenusedsuccessfullywithtemperatefreshandmarineambientwaters,andwastewaters.Itistheuser''sresponsibilitytoensurethevalidityofthistestmethodforwatersofothertypes.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Forspecifichazardstatements,seeSection9.
【中国标准分类号】:C51;Z16
【国际标准分类号】:07_100_20
【页数】:5P.;A4
【正文语种】:
下载地址: 点击此处下载