【英文标准名称】:AligningArborswithTaperShank
【原文标准名称】:锥柄的校正芯轴
【标准号】:DIN6381-1962
【标准状态】:作废
【国别】:德国
【发布日期】:1962-09
【实施或试行日期】:
【发布单位】:德国标准化学会(DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:设计;尺寸;夹具;定心心轴;夹紧装置;定义
【英文主题词】:dimensions;clampingdevices;fixtures;aligningarbors;design;definitions
【摘要】:
【中国标准分类号】:J45
【国际标准分类号】:4225
【页数】:2P;A4
【正文语种】:德语
【英文标准名称】:Sensoryanalysis-Methodology-Generalguidanceformeasuringodour,flavourandtastedetectionthresholdsbyathree-alternativeforced-choice(3-AFC)procedure
【原文标准名称】:感官分析.方法学.用三点选配(3-AFC)法测定气味、香味和味觉探测阈值的通用指南
【标准号】:ISO13301-2002
【标准状态】:现行
【国别】:国际
【发布日期】:2002-09
【实施或试行日期】:
【发布单位】:国际标准化组织(IX-ISO)
【起草单位】:ISO/TC34
【标准类型】:()
【标准水平】:()
【中文主题词】:阈值;方法学;定义;味觉;香味;检测极限;食品;感官分析(食品);指导手册;气味测定法;方法;农产品
【英文主题词】:Agriculturalproducts;Aroma;Definitions;Detectionlimit;Foodproducts;Guidebooks;Methodologies;Methods;Odorimetry;Sensoryanalysis(food);Taste;Thresholdvalue
【摘要】:ThisInternationalStandardprovidesguidanceon:—obtainingdataonthedetectionofchemicalstimulithatevokeresponsestoodour,flavourandtastebya3-AFC(three-alternativeforced-choice)procedure;—theprocessingofthedatatoestimatethevalueofathresholdanditserrorbounds,andotherstatisticsrelatedtothedetectionofthestimulus.Typically,theprocedureswillbeusedinoneofthefollowingtwomodes:—investigationofthesensitivityofassessorstospecificstimuli;—investigationoftheabilityofachemicalsubstancetostimulatethechemoreceptivesenses.(Althoughexperimentsmayencompassbothmodes.)Examplesofthefirstmodewouldincludestudiesofthedifferencesamongindividualsorspecifiedpopulationsofindividualsinsensitivitiesandoftheeffectsofage,gender,physiologicalcondition,disease,administrationofdrugsandambientconditionsonsensitivity.Examplesofthelattermodewouldinclude:—studiesinflavourchemistryandtheimpactofspecifiedchemicalsontheflavouroffoods;—classificationofchemicalsfortheirimpactonhumans,ifpresentintheenvironment;—studiesontherelationshipofmolecularstructuretocapacityofachemicaltoactasastimulant;—qualityassuranceofgaseouseffluentsandofwater,foodsandbeverages;—studiesinthemechanismofolfaction.Inbothmodesthewayinwhichprobabilityofacorrectresponsechangeswithintensityofstimulus,i.e.theslopeofthedose/responsecurve,couldbeanimportantaspectofthestudyaswellasthethresholdvalue,andthedataprocessingproceduresdescribedhereprovidethisinformation.ThefocusofthisInternationalStandardisondatarequirementsandoncomputationalprocedures.Regardingthevalidityofthedata,thetextisrestrictedtogeneralrulesandprecautions.Itdoesnotdifferentiatebetweendetectionanddifferencethresholds;fundamentally,theproceduresmeasureadifferencethresholdbecauseatestsampleiscomparedwithareferencesample.Typically,thereferencesampleisnotintendedtocontainthestimulusunderinvestigation,buttheGuidelinesdonotexcludeexperimentaldesigninwhichthereferencecouldcontainthestimulus,oritmightnotbeknownifthereferencecontainsthestimulus.TheGuidelinesdonotmeasurearecognitionthresholdasdefinedinISO5492.TheydonotaddressthestandardizationofmethodsofdeterminingairqualityasaEuropeanStandardisinpreparation[9].
【中国标准分类号】:X04
【国际标准分类号】:67_240
【页数】:27P.;A4
【正文语种】:英语
基本信息
| 标准名称： | 建筑安装工程质量检验评定标准工业管道安装工程TJ307-77 |
| 发布日期： | 1977-10-22 |
| 实施日期： | 1978-01-01 |
| 首发日期： | 1900-01-01 |
| 作废日期： | 1900-01-01 |
| 出版日期： | 1900-01-01 |
适用范围
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前言
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引用标准
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所属分类： 工程建设 施工机械设备 建筑工程施工机械