ASTM D 5453-2006 紫外线荧光测量法测定轻质烃、火花点燃式发动机燃料、柴油发动机油和发动机油中总硫量的标准试验方法
时间:2024-04-29 20:54:01 来源: 标准资料网 作者：标准资料网 阅读：8630
【英文标准名称】:StandardTestMethodforDeterminationofTotalSulfurinLightHydrocarbons,SparkIgnitionEngineFuel,DieselEngineFuel,andEngineOilbyUltravioletFluorescence
【原文标准名称】:紫外线荧光测量法测定轻质烃、火花点燃式发动机燃料、柴油发动机油和发动机油中总硫量的标准试验方法
【标准号】:ASTMD5453-2006
【标准状态】:作废
【国别】:美国
【发布日期】:2006
【实施或试行日期】:
【发布单位】:美国材料与试验协会(ASTM)
【起草单位】:ASTM
【标准类型】:()
【标准水平】:()
【中文主题词】:污染;荧光;荧光测定法;燃料;轻质烃;油;石油产品;纯度;辐射;试验
【英文主题词】:Contamination;Fluorescence;Fluorimetry;Fuels;Lighthydrocarbons;Oils;Petroleumproducts;Purity;Radiation;Tests
【摘要】:
【中国标准分类号】:E31
【国际标准分类号】:75_100
【页数】:10P;A4
【正文语种】:英语
【英文标准名称】:StandardTestMethodforEnumerationofAquaticBacteriabyEpifluorescenceMicroscopyCountingProcedure
【原文标准名称】:按荧光显微镜计算程序进行水生菌计数的标准试验方法
【标准号】:ASTMD4455-1985(2009)
【标准状态】:现行
【国别】:美国
【发布日期】:1985
【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】:Bacteria/bacterialcontrol--water;Epifluorescencemicroscopy;Fluorescence--wateranalysis;Microscopicexamination--water;Pathogens--water;Water-formeddeposits
【摘要】:Bacterialpopulations,aspartofthemicrobialcommunityinaquaticsystemsareactivelyinvolvedinnutrientcycling.Thesignificanceofthesepopulationsisoftendifficulttoascertainbecauseofthepresenceofmanyphysiologicaltypes.However,measurementofbacterialdensitiesisusuallythefirststepintryingtoestablishanyrelationshipthatmightexistbetweenbacteriaandotherbiochemicalprocesses.Acridine-orangeepifluorescencedirect-countingprocedurecannotdifferentiatebetweenviableandnonviablecells.Thisprocedurecannotbeusedtoconvertdirectlythenumberstototalcarbonbiomassbecauseofthenaturalvariationsinbacterialcellsize.Theacridine-orangeepifluorescencedirect-microscopiccountisbothquantitativeandprecise.Thisprocedureisidealforenumeratingbothpelagicandepibenthicbacteriainallfreshwaterandmarineenvironments.Theprocesscanbeemployedinsurveyactivitiestocharacterizethebacteriologicaldensitiesofenvironmentalwaters.Theprocedurecanalsobeusedtoestimatebacterialdensitiesincoolingtowerwaters,processwaters,andwatersassociatedwithoildrillingwells.1.1Thistestmethoddescribesaprocedurefordetectionandenumerationofaquaticbacteriabytheuseofanacridine-orangeepifluorescencedirect-microscopiccountingprocedure.Itisapplicabletoenvironmentalwaters.1.2Certaintypesofdebrisandothermicroorganismsmayfluoresceinacridineorange-stainedsmears.1.3Thetestmethodrequiresatrainedmicrobiologistortechnicianwhoiscapableofdistinguishingbacteriafromotherfluorescingbodiesonthebasisofmorphologywhenviewedathighermagnifications.1.4Useofbrightlightpermitsdifferentiationofsinglebacteriawherereducedformazanisdepositedatthepolarends.1.5Approximately104cells/mLarerequiredfordetectionbythistestmethod.1.6ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.7Thisstandarddoesnotpurporttoaddressthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:Z16
【国际标准分类号】:07_100_20
【页数】:3P.;A4
【正文语种】:英语
【英文标准名称】:Safetymarking;safetysignW8
【原文标准名称】:安全标志.安全符号W8
【标准号】:DIN4844T.1Bb.13-1980
【标准状态】:作废
【国别】:
【发布日期】:
【实施或试行日期】:
【发布单位】:德国标准化学会(DE-DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:
【中国标准分类号】:C65;A22
【国际标准分类号】:
【页数】:
【正文语种】: