IEEE 765-2002 核电站的择优电源

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【英文标准名称】:Preferredpowersupply(PPS)fornuclearpowergeneratingstations
【原文标准名称】:核电站的择优电源
【标准号】:IEEE765-2002
【标准状态】:作废
【国别】:美国
【发布日期】:2002
【实施或试行日期】:
【发布单位】:美国电气电子工程师学会(IEEE)
【起草单位】:IEEE
【标准类型】:()
【标准水平】:()
【中文主题词】:核电厂;电力系统;电气安全;规范(验收);定义;安全;界面;监督(认可);传输系统;动力传输;电源;发电站
【英文主题词】:
【摘要】:
【中国标准分类号】:F60
【国际标准分类号】:27_120_20
【页数】:24P;A4
【正文语种】:英语


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【英文标准名称】:Methodfordeterminationofflashpointofpaints,varnishesandrelatedproductsbytherapidequilibriummethod
【原文标准名称】:采用快速平衡法测定色涂料、清漆以及有关产品闪点的方法
【标准号】:BSEN456-1991
【标准状态】:作废
【国别】:英国
【发布日期】:1991-12-20
【实施或试行日期】:1991-12-20
【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】:尺寸;精密度;设计;试样制备;涂料;溶剂;试验设备;燃烧试验;清漆;闪点测定;易燃材料
【英文主题词】:paints;varnishes;flammablematerials;precision;flashpointdetermination;firetests;dimensions;solvents;specimenpreparation;testequipment;design
【摘要】:
【中国标准分类号】:G51
【国际标准分类号】:87_040
【页数】:20P;A4
【正文语种】:英语


【英文标准名称】:StandardGuideforRepresentativeSamplingforManagementofWasteandContaminatedMedia
【原文标准名称】:废物和污染媒介管理用代表性取样的标准指南
【标准号】:ASTMD6044-1996(2003)
【标准状态】:现行
【国别】:
【发布日期】:1996
【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】:D34.01.01
【标准类型】:(Guide)
【标准水平】:()
【中文主题词】:
【英文主题词】:bias;contaminatedmedia;precision;representative;sample;waste;wastemanagement
【摘要】:Representativesamplesaredefinedinthecontextofthestudyobjectives.Thisguidedefinesthemeaningofarepresentativesample,aswellastheattributesthesample(s)needstohaveinordertoprovideavalidinferencefromthesampledatatothepopulation.Thisguidealsoprovidesaprocesstoidentifythesourcesoferror(bothsystematicandrandom)sothataneffortcanbemadetocontrolorminimizetheseerrors.Thesesourcesincludesamplingerror,measurementerror,andstatisticalbias.Whentheobjectiveislimitedtothetakingofarepresentative(physical)sampleorarepresentativesetof(physical)samples,onlypotentialsamplingerrorsneedtobeconsidered.Whentheobjectiveistomakeaninferencefromthesampledatatothepopulation,additionalmeasurementerrorandstatisticalbiasneedtobeconsidered.Thisguidedoesnotapplytothecaseswherethetakingofanonrepresentativesample(s)isprescribedbythestudyobjective.Inthatcase,samplingapproachessuchasjudgmentsamplingorbiasedsamplingcanbetaken.Theseapproachesarenotwithinthescopeofthisguide.Followingthisguidedoesnotguaranteethatrepresentativesampleswillbeobtained.Butfailuretofollowthisguidewilllikelyresultinobtainingsampledatathatareeitherbiasedorimprecise,orboth.Followingthisguideshouldincreasethelevelofconfidenceinmakingtheinferencefromthesampledatatothepopulation.ThisguidecanbeusedinconjunctionwiththeDQOprocess(seePracticeD5792).Thisguideisintendedforthosewhomanage,design,andimplementsamplingandanalyticalplansforwastemanagementandcontaminatedmedia.1.1Thisguidecoversthedefinitionofrepresentativenessinenvironmentalsampling,identifiessourcesthatcanaffectrepresentativeness(especiallybias),anddescribestheattributesthatarepresentativesampleorarepresentativesetofsamplesshouldpossess.Forconvenience,theterm"representativesample"isusedinthisguidetodenotebotharepresentativesampleandarepresentativesetofsamples,unlessotherwisequalifiedinthetext.1.2Thisguideoutlinesaprocessbywhicharepresentativesamplemaybeobtainedfromapopulation.Thepurposeoftherepresentativesampleistoprovideinformationaboutastatisticalparameter(s)(suchasmean)ofthepopulationregardingsomecharacteristic(s)(suchasconcentration)ofitsconstituent(s)(suchaslead).Thisprocessincludesthefollowingstages:(1)minimizationofsamplingbiasandoptimizationofprecisionwhiletakingthephysicalsamples,(2)minimizationofmeasurementbiasandoptimizationofprecisionwhenanalyzingthephysicalsamplestoobtaindata,and(3)minimizationofstatisticalbiaswhenmakinginferencefromthesampledatatothepopulation.Whilebothbiasandprecisionarecoveredinthisguide,majoremphasisisgiventobiasreduction.1.3Thisguidedescribestheattributesofarepresentativesampleandpresentsageneralmethodologyforobtainingrepresentativesamples.Itdoesnot,however,providespecificorcomprehensivesamplingprocedures.Itistheuser'sresponsibilitytoensurethatproperandadequateproceduresareused.1.4Theassessmentoftherepresentativenessofasampleisnotcoveredinthisguidesinceitisnotpossibletoeverknowthetruevalueofthepoplulation.1.5Sincethepurposeofeachsamplingeventisunique,thisguidedoesnotattempttogiveastepbystepaccountofhowtodevelopasamplingdesignthatresultsinthecollectionofrepresentativesamples.1.6AppendixX1containstwocasestudies,whichdiscussthefactorsforobtainingrepresentativesamples.1.7Thisstandarddoesnotpurporttoaddr......
【中国标准分类号】:Z04
【国际标准分类号】:13_020_10
【页数】:11P.;A4
【正文语种】: