IEC 60493-1-1974 老化试验数据的统计分析指南第1部分:以正态分布试验结果平均值为基础的方法
时间:2024-05-20 15:13:00 来源: 标准资料网 作者：标准资料网 阅读：8528
【英文标准名称】:Guideforthestatisticalanalysisofageingtestdata-Part1:Methodsbasedonmeanvaluesofnormallydistributedtestresults
【原文标准名称】:老化试验数据的统计分析指南第1部分:以正态分布试验结果平均值为基础的方法
【标准号】:IEC60493-1-1974
【标准状态】:现行
【国别】:国际
【发布日期】:1974
【实施或试行日期】:
【发布单位】:国际电工委员会(IX-IEC)
【起草单位】:IEC/SC15B
【标准类型】:()
【标准水平】:()
【中文主题词】:电气工程;试验;指导手册;绝缘材料;老化试验;解释;疲劳试验
【英文主题词】:Ageingtests;Electricalengineering;Fatiguetests;Guidebooks;Insulatingmaterials;Interpretations;Testing
【摘要】:本导则给出了用于老化试验结果的分析和评定统计方法。它包括建立在正态分析的试验结果的平均值基础上数的表示方法。这些方法只有在试验数据遵从数学和物理学定律的特定假设时才是有效的。本导则还给出了关于：某些假设的‘些有效性的统汁检验方法。老化试验数据统汁分析还包含另外一些统计方法,例如建立在下列基础上的方法：—一试验结果的图解法评定；——试验结果的中间值法；——裁减数据法；——极值统计法。
【中国标准分类号】:K04
【国际标准分类号】:29_035_01
【页数】:16P.;A4
【正文语种】:英语
【英文标准名称】:StandardTestMethodsforDeterminationoftheSoilWaterChararcteristicCurveforDesorptionUsingaHangingColumn,PressureExtractor,ChilledMirrorHygrometer,and/orCentrifuge
【原文标准名称】:使用悬垂柱、压力萃取器、冷镜式湿度计和/或离心分离机测定土壤水解吸性能曲线的标准试验方法
【标准号】:ASTMD6836-2002
【标准状态】:现行
【国别】:
【发布日期】:2002
【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】:D18.04
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:离心机;柱;曲面;解吸;测定;萃取器;湿度计;镜子;压力;土壤水;土壤
【英文主题词】:capillarypressure;chilledmirrorhygrometer;gravimetricwatercontent;hangingcolumn;matricpotential;matricsuction;pressuremembrane;pressureplate;soil;soilwatercharacteristiccurve;suction;totalsuction;volumetricwatercontent;wateractivity;
【摘要】:Thesoilwatercharacteristiccurve(SWCC)isfundamentaltohydrologicalcharacterizationofunsaturatedsoilsandisrequiredformostanalysesofwatermovementinunsaturatedsoils.TheSWCCisalsousedincharacterizingtheshearstrengthandcompressibilityofunsaturatedsoils.TheunsaturatedhydraulicconductivityofsoilisoftenestimatedusingpropertiesoftheSWCCandthesaturatedhydraulicconductivity.Thismethodappliesonlytosoilscontainingtwoporefluids:agasandaliquid.Theliquidisusuallywaterandthegasisusuallyair.Otherliquidsmayalsobeused,butcautionmustbeexercisediftheliquidbeingusedcausesexcessiveshrinkageorswellingofthesoilmatrix.Afullinvestigationhasnotbeenconductedregardingthecorrelationbetweensoilwatercharacteristiccurvesobtainedusingthismethodandsoilwatercharacteristicscurvesofin-placematerials.Thus,resultsobtainedfromthismethodshouldbeappliedtofieldsituationswithcautionandbyqualifiedpersonnel.Note18212;Thequalityoftheresultproducedbythisstandarddependsonthecompetenceofthepersonnelperformingthetestandthesuitabilityoftheequipmentandfacilitiesused.AgenciesthatmeetthecriteriaofPracticeD3740aregenerallyconsideredcapableofcompetentandobjectivetesting,sampling,inspection,etc.UsersofthisstandardarecautionedthatcompliancewithPracticeD3740doesnotinitselfensurereliableresults.Reliableresultsdependonmanyfactors.PracticeD3740providesameansofevaluatingsomeofthesefactors.1.1Thistestmethodcoversthedeterminationofsoilwatercharacteristiccurves(SWCCs)fordesorption(drying).SWCCsdescribetherelationshipbetweensuctionandvolumetricwatercontent,gravimetricwatercontent,ordegreeofwatersaturation.SWCCsarealsoreferredtoassoilwaterretentioncurves,soilwaterreleasecurves,orcapillarypressurecurves.1.2Thisstandarddescribesfivemethods(A-E)fordeterminingthesoilwatercharacteristiccurve.MethodA(hangingcolumn)issuitableformakingdeterminationsforsuctionsintherangeof0to80kPa.MethodB(pressurechamberwithvolumetricmeasurement)andMethodC(pressurechamberwithgravimetricmeasurement)aresuitableforsuctionsintherangeof0to1500kPa.MethodD(chilledmirrorhygrometer)issuitableformakingdeterminationsforsuctionsintherangeof500kPato100MPa.MethodE(centrifugemethod)issuitableformakingdeterminationsintherange0to120kPa.MethodAtypicallyisusedforcoarsesoilswithlittlefinesthatdrainreadily.MethodsBandCtypicallyareusedforfinersoilswhichretainwatermoretightly.MethodDisusedwhensuctionsnearsaturationarenotrequiredandcommonlyisemployedtodefinethedryendofthesoilwatercharacteristiccurve(thatis,watercontentscorrespondingtosuctions>1000kPa).MethodEistypicallyusedforcoarsersoilswhereanappreciableamountofwatercanbeextractedwithsuctionsupto120kPa.Themethodsmaybecombinedtoprovideadetaileddescriptionofthesoilwatercharacteristiccurve.Inthisapplication,MethodAorEisusedtodefinethesoilwatercharacteristiccurveatlowersuctions(0to80kPaforA,0to120kPaforE)nearsaturationandtoaccuratelyidentifytheairentrysuction,MethodBorCisusedtodefinethesoilwatercharacteristiccurveforintermediatewatercontentsandsuctions(100to1000kPa),andMethodDisusedtodefinethesoilwatercharacteristiccurvesatlowwatercontentsandhighersuctions(>1000kPa)and1.3AllobservedandcalculatedvaluesshallconformtotheguideforsignificantdigitsandroundingestablishedinPracticeD6026.TheproceduresinPracticeD6026......
【中国标准分类号】:B11
【国际标准分类号】:13_080_40
【页数】:20P.;A4
【正文语种】:
【英文标准名称】:Foodstuffs-Methodsofanalysisforthedetectionofgeneticallymodifiedorganismsandderivedproducts-Generalrequirementsanddefinitions(ISO24276:2006);GermanversionENISO24276:2006
【原文标准名称】:食品.基因改良生物体和衍生产品的分析方法.一般要求和定义
【标准号】:ENISO24276-2006
【标准状态】:现行
【国别】:
【发布日期】:2006-05
【实施或试行日期】:
【发布单位】:欧洲标准学会(EN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:分析;连锁反应;化学分析和试验;定义;DNA;食品检验;食品;基因改良;基因产品;遗传工程;在实验室条件下;说明书;解释;试验报告;实验室;实验室设备;实验室试验;分析方法;微生物食品;微生物分析;微生物学;微生物;最低要求;核酸;生物体;PCR;性能要求;聚合酶;聚合酶连锁反应;质量保证;规范(验收);步骤;试验;验证
【英文主题词】:Analysis;Chainreactions;Chemicalanalysisandtesting;Definition;Definitions;DNA;Foodinspection;Foodproducts;Foodtesting;Genemodified;Geneproduct;Geneticengineering;Invitro;Instructions;Interpretations;Investigations;Laboratories;Laboratoryequipment;Laboratorytesting;Laboratorytests;Methodsofanalysis;Microbialfoods;Microbiologicalanalysis;Microbiology;Microorganisms;Minimumrequirements;Nucleicacids;Organisms;PCR;Performancerequirements;Polymerase;Polymerasechainreaction;Qualityassurance;Specification(approval);Steps;Testing;Verification
【摘要】:
【中国标准分类号】:X04
【国际标准分类号】:67_050
【页数】:23P.;A4
【正文语种】:英语