【英文标准名称】:Specificationforgeneralrequirementsforluminairesupportingcouplersfordomestic,lightindustrialandcommercialuse
【原文标准名称】:家用、轻工业及商用照明设备支承连接器的一般要求规范
【标准号】:BS6972-1988
【标准状态】:现行
【国别】:英国
【发布日期】:1988-06-30
【实施或试行日期】:1988-06-30
【发布单位】:英国标准学会(BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:定型试验;额定电压;电连接器;漏电路径;腐蚀试验;电气试验;老化试验;插头;机械试验;额定电流;电气安全;试样;燃烧试验;热试验;热阻;试验设备;照明设备;跟踪系数;作标记;作标记;插座;环境试验;拨拉试验;天花板灯线盒;软导体;接线端;余隙距离;工作环境;工业的;温升;扭矩;耐久试验;冲击试验;渗透性试验;家用的;灯具;接地;商业的;湿空气试验
【英文主题词】:Ageingtests;Ceilingroses;Clearancedistances;Commercial;Corrosiontests;Damp-airtests;Domestic;Earthing;Electricconnectors;Electricplugs;Electricsockets;Electricterminals;Electricalsafety;Electricaltesting;Endurancetesting;Environment(working);Environmentaltesting;Firetests;Flexibleconductors;Impacttesting;Industrial;Leakagepaths;Lightingequipment;Luminaires;Marking;Mechanicaltesting;Penetrationtests;Pull-outtests;Ratedcurrent;Ratedvoltage;Temperaturerise;Testequipment;Testspecimens;Thermalresistance;Thermaltesting;Torque;Trackingindex;Typetesting
【摘要】:Requirementsforluminairesupportingcouplers(LSCs)comprisingLSCplugsandLSCoutletsforuseinfinalcircuitsratedatnotmorethan16Aandnotmorethan250Va.c.,theelectricalloadconnectedtoanyoneLSCplugnotexceeding6A.
【中国标准分类号】:K70
【国际标准分类号】:29_120_30;29_140_40
【页数】:24P;A4
【正文语种】:英语


【英文标准名称】:StandardPracticeforEstimatingThurstonianDiscriminalDistances
【原文标准名称】:评定瑟斯顿识别距离的标准规程
【标准号】:ASTME2262-2003
【标准状态】:现行
【国别】:
【发布日期】:2003
【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】:E18.03
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:感官分析;估计;距离
【英文主题词】:distances;discriminal;Thurstonian
【摘要】:1.1ThispracticedescribesprocedurestoestimateThurstoniandiscriminaldistances(thatis,d'values)fromdataobtainedontwosamples.Proceduresarepresentedforfourforced-choicemethods(thatis,thetriangle,theduo-trio,the3-alternative-forced-choice(or3-AFC)andthe2-AFC(alsocalledthedirectionaldifferencetest)),theA/Not-Amethod,theSame-Differentmethodandfordataobtainedfromorderedcategoryscales.Proceduresforestimatingthevarianceofd'arealsopresented.Thus,confidenceintervalsandstatisticaltestscanbecalculatedford'.1.2Theproceduresinthisdocumentpertainonlytotheunidimensional,equal-variancemodel.Other,morecomplicatedThurstonianmodels,involvingmultipledimensionsandunequalvariancesexistbutarenotaddressedinthisstandard.Theprocedureforforced-choicemethodsislimitedtodichotomousresponses.TheprocedurefortheA/Not-Amethodassumesequalsamplesizesforthetwosamples.TheprocedurefortheSame-Differentmethodassumesequalsamplesizesforthematchedandunmatchedpairsofsamples.Forallmethods,onlyunreplicatedtestsareconsidered.(Testsinwhicheachassessorperformsmultiple(thatis,replicated)evaluationsrequiredifferentanalyses.)1.3Thurstonianscalingisamethodformeasuringtheperceptualdifferencebetweentwosamplesbasedonaprobabilisticmodelforcategoricalchoicedecisionmaking.Themagnitudeoftheperceiveddifference,948;,canbeestimatedfromtheassessors'categoricalchoicesusingthemethodsdescribedinthispractice(SeeAppendixX3foramoredetaileddescriptionofThurstonianscaling).1.4Intheory,theThurstoniandoesnotdependonthemethodusedtomeasurethedifferencebetweentwosamples.Assuch,948;providesacommonscaleofmeasureforcomparingsamplesmeasuredunderavarietyoftestconditions.Forexample,Thurstonianscalingcanbeusedtocompareproductsmeasuredunderdifferenttestconditions,tocomparepanels(trained,consumerorboth)thathaveevaluatedthesamesamples(usingthesameordifferenttestmethods)andtocomparetestmethodsontheirabilitytodiscriminatesamplesthatexhibitafixedsensorydifference.1.5Thisstandardmayinvolvehazardousmaterials,operationsandequipment.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:A52
【国际标准分类号】:67_240
【页数】:47P.;A4
【正文语种】: