【英文标准名称】:StandardGuideforTime-IntensityEvaluationofSensoryAttributes
【原文标准名称】:感官特征时间强度评价的标准指南
【标准号】:ASTME1909-1997(2003)
【标准状态】:现行
【国别】:
【发布日期】:1997
【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】:(Guide)
【标准水平】:()
【中文主题词】:感官
【英文主题词】:sensory
【摘要】:Thepurposeoftime-intensitymeasurementsistoestablishthepatternofdevelopmentanddeclineofaparticularsensorycharacteristicunderstudy.T-Ievaluationsareapplicablewhenmeasurementsatasingletimepoint(anaveragingprocess)arenotsufficienttodistinguishproductsthathaveverydifferenttemporalcharacteristics.AspointedoutbyLeeandPangborn(1)3,x201C;Thisaveragingprocessresultsinthemaskingorcompletelossofimportantinformationsuchasrateofonsetofstimulation,timeanddurationofmaximumintensity,rateofdecayofperceivedintensity,timeofextinction,andtotaldurationoftheentireprocess.x201D;Productsratedsimilarlyusingtraditionalsinglepointtechniquesofproductprofilingmayprovideverydifferenttemporalsensoryexperiencestotheconsumer.Acceptabilityoftheproductmaybeaffected,andtraditionaldescriptivemethodologydoesnotreflectthechangesinanattributersquo;intensityovertime.T-Ihasapplicationsforavarietyofproducts.Examplesinclude:foodproducts,rangingfromshort-termsweetnessinabeveragetolong-termelasticityinchewinggum;personalcareproducts,measuringthedevelopmentandlongevityofshampoolatherandtheresidualskinfeelofaskincream;householdcareproducts,monitoringtheintensityofscentsovertime;pharmaceuticals,monitoringskincoolingafterapplicationofatopicalanalgesic.AuditorysignalsorvisualchangesinproductscanalsobeevaluatedbytheT-Itechnique.1.1Thisguidecoversproceduresforconductingandanalyzingtime-intensity(T-I)evaluationsofproductsorothersensorystimuli.Time-intensityisthemeasurementoftheintensityofasinglesensorysensationovertimeinresponsetoasingleexposuretoaproductorothersensorystimulus.1.2Thisguideutilizesaspeciallytrainedpaneltomeasuretheintensityofasinglecontinuoussensationduringthetimefrominitialexposure:1.2.1Toitsextinction,1.2.2Toaspecifiedintensity,or1.2.3Toapredeterminedlimitoftime.1.3Applicationsnotcoveredinthisguideincludemeasuring:1.3.1Multiplesensations,1.3.2Multipleexposureswithinasinglemeasurement,and1.3.3Qualitativeorhedonicchangesintheperceivedsensation.1.4Thisguideincludesprotocolsfortheselectionandtrainingofjudges,descriptionsanduseofphysicaldatacollectiondevices,andmethodsofdatahandling,summarization,andstatisticalanalysis.Illustrationoftwodifferentdatahandlingandanalysisapproachesareincludedintheappendixes.1.5Thisguideisnotapplicabletomeasureproductshelflifeorstabilitythatrequireevaluationsatdiscretetimeintervals.1.6Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:Q04
【国际标准分类号】:67_240
【页数】:15P.;A4
【正文语种】:


【英文标准名称】:Lightandlighting-Measurementandpresentationofphotometricdataoflampsandluminaires-Part1:measurementandfileformat.
【原文标准名称】:灯和照明.灯和灯具的光度数据的测量和表示.第1部分:测量和文件格式
【标准号】:NFX90-011-1/IN1-2012
【标准状态】:现行
【国别】:法国
【发布日期】:2012-05-01
【实施或试行日期】:
【发布单位】:法国标准化协会(FR-AFNOR)
【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】:K72
【国际标准分类号】:13_180;17_180_20;29_140_01;91_160_01
【页数】:7P;A4
【正文语种】:其他