JIS Z9052-1963 二个平均值之差的区间预测(已知标准偏差)
时间:2024-04-29 12:17:55 来源: 标准资料网 作者：标准资料网 阅读：8255
【英文标准名称】:Intervalestimationofthedifferencebetweentwopopulationmeans(standarddeviationsknown)
【原文标准名称】:二个平均值之差的区间预测(已知标准偏差)
【标准号】:JISZ9052-1963
【标准状态】:作废
【国别】:日本
【发布日期】:1963-10-01
【实施或试行日期】:1963-10-01
【发布单位】:日本工业标准调查会(JISC)
【起草单位】:BasicItems
【标准类型】:()
【标准水平】:()
【中文主题词】:均值;估计;统计容许区间;平均
【英文主题词】:average;mean;estimation;statisticaltoleranceintervals
【摘要】:
【中国标准分类号】:A00
【国际标准分类号】:03_120_30
【页数】:6P;A4
【正文语种】:日语
【英文标准名称】:StandardTestMethodforSimultaneousEnumerationofTotalandRespiringBacteriainAquaticSystemsbyMicroscopy
【原文标准名称】:用显微镜进行水生系统中细菌总量和(呼吸时)呼出的细菌的同步计数的标准试验方法
【标准号】:ASTMD4454-1985(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】:Water-formeddeposits;Bacteria/bacterialcontrol--water;Epifluorescencemicroscopy;Fluorescence--wateranalysis;Microscopicexamination--water;Pathogens--water
【摘要】:Measurementofbacterialdensitiesisgenerallythefirststepinestablishingarelationshipbetweenbacteriaandotherbiochemicalprocesses.Itisknownthattheclassicalplatecountprocedureunderestimatesbacterialdensitieswhiletheepifluorescencedirectmicroscopicproceduremoreaccuratelydepictsthetotalnumbersofnonviableordormantandviablecellsinawatersample.Theacridine-orangeINT-formazanreductiontechniqueprovidesinformationonthetotalconcentrationsofbacteriaaswellasthatproportionwhichareactivelyrespiringandthusinvolvedindegradativeprocesses.Theacridine-orangeINT-formazanreductiontechniqueisbothquantitativeandprecise.Thisprocedureisidealforenumeratingbothpelagicandepibenthicbacteriainallfreshwaterandmarineenvironments.Theprocesscanbeemployedinsurveystudiestocharacterizethebacteriologicaldensitiesandactivitiesofenvironmentalwaters.1.1Thistestmethodcoversthedetectionandenumerationofaquaticbacteriabytheuseofanacridine-orangeepifluorescencedirect-microscopiccountingprocedure.Thistestmethodisapplicabletoenvironmentalwatersandpotablewaters.1.2Certaintypesofdebrisandothermicroorganismsmayfluoresceinacridine-orangestainedsmears.1.3Theproceduredescribedrequiresatrainedmicrobiologistortechnicianwhoiscapableofdistinguishingbacteriafromotherfluorescingbodiesonthebasisofmorphologywhenviewedathighermagnifications.1.4Useofbrightlightpermitsdifferentiationofsinglebacteriawherereducedformazanisdepositedatthepolarends.1.5Approximately104cells/mLarerequiredfordetectionbythistestmethod.1.6Minimalcellsizewhichallowsthedetectionofformazandepositsisrepresentedbybacteriaof0.4x03BC;m.21.7ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.8Thisstandarddoesnotpurporttoaddressthesafetyconcerns,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】:Specificationforcapabilityapprovalproceduresford.c.andlowfrequencyconnectorcableassembliesandwiringharnesses:genericdata
【原文标准名称】:直流和低频连接电缆总装和配线装具性能鉴定程序规范:一般数据
【标准号】:BS9550-1989
【标准状态】:作废
【国别】:英国
【发布日期】:1989-02-28
【实施或试行日期】:
【发布单位】:英国标准学会(BSI)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:低频;电线;能力鉴定;鉴定试验;机械试验;直流电流;电子设备及元件;检验;试验条件;评估的质量;环境试验;统计质量控制;电气试验;质量管理;详细规范;电缆连接件;电缆;电连接器;质量保证体系;规范(审批)
【英文主题词】:
【摘要】:
【中国标准分类号】:K13
【国际标准分类号】:
【页数】:28P;A4
【正文语种】:英语