BS ISO/IEC 15420-2009 信息技术.自动识别与数据采集技术.EAN/UPC条码符号学规范
时间:2024-05-10 13:30:44 来源: 标准资料网 作者：标准资料网 阅读：9781
【英文标准名称】:Informationtechnology-Automaticidentificationanddatacapturetechniques-EAN/UPCbarcodesymbologyspecification
【原文标准名称】:信息技术.自动识别与数据采集技术.EAN/UPC条码符号学规范
【标准号】:BSISO/IEC15420-2009
【标准状态】:现行
【国别】:英国
【发布日期】:2010-06-30
【实施或试行日期】:2010-06-30
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:自动;条形码;代码表示;编码(数据转换);数据采集;数据格式;数据处理;数据表示;定义(术语);欧洲物品号;识别;信息交换;信息技术;规范;规范(验收);符号
【英文主题词】:Automatic;Barcode;Codedrepresentation;Coding(dataconversion);Dataacquisition;Dataformats;Dataprocessing;Datarepresentation;Definitions;Europeanarticlenumber;Identification;Informationinterchange;Informationtechnology;Specification;Specification(approval);Symbols
【摘要】:
【中国标准分类号】:L71
【国际标准分类号】:35_040
【页数】:50P;A4
【正文语种】:英语
【英文标准名称】:StandardTestMethodforSensoryAnalysis8212;TriangleTest
【原文标准名称】:感官分析的标准试验方法.三角试验
【标准号】:ASTME1885-2004
【标准状态】:现行
【国别】:
【发布日期】:2004
【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】:E18.04
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:评定;感官;感官分析;试验方法
【英文主题词】:sensory;sensoryanalysis;triangletest
【摘要】:Thistestmethodiseffectiveforthefollowingtestobjectives:5.1.1Todeterminewhetheraperceivabledifferenceresultsoraperceivabledifferencedoesnotresult,forexample,whenachangeismadeiningredients,processing,packaging,handlingorstorage;or5.1.2Toselect,trainandmonitorassessors.Thistestmethoditselfdoesnotchangewhetherthepurposeofthetriangletestistodeterminethattwoproductsareperceivablydifferentversusthattheproductsarenotperceivablydifferent.Onlytheselectedvaluesofpd,x03B1;,andx03B2;change.Iftheobjectiveofthetestistodetermineifthereisaperceivabledifferencebetweentwoproducts,thenthevalueselectedforx03B1;istypicallysmallerthanthevalueselectedforx03B2;.Iftheobjectiveistodetermineifthetwoproductsaresufficientlysimilartobeusedinterchangeably,thenthevalueselectedforx03B2;istypicallysmallerthanthevalueselectedforx03B1;andthevalueofpdisselectedtodefinex201C;sufficientlysimilar.x201D;1.1Thistestmethodcoversaprocedurefordeterminingwhetheraperceptiblesensorydifferenceexistsbetweensamplesoftwoproducts.1.2Thistestmethodapplieswhetheradifferencemayexistinasinglesensoryattributeorinseveral.1.3Thistestmethodisapplicablewhenthenatureofthedifferencebetweenthesamplesisunknown.Itdoesnotdeterminethesizeorthedirectionofthedifference.Theattribute(s)responsibleforthedifferencearenotidentified.1.4Comparedtotheduo-triotest,thetriangletestcanachieveanequivalentlevelofstatisticalsignificancewithfewerassessors.Fordetailsonhowthetriangletestcomparestootherthree-sampletests,seeRefs(1),(2),(3)and(4).1.5Thistestmethodisapplicableonlyiftheproductsarehomogeneous.Iftwosamplesofthesameproductcanoftenbedistinguished,thenanothermethod,forexample,descriptiveanalysis,maybemoreappropriate.1.6Thistestmethodisapplicableonlywhentheproductsdonotcauseexcessivesensoryfatigue,carryoveroradaptation.1.7Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:X04
【国际标准分类号】:67_240
【页数】:8P.;A4
【正文语种】:
【英文标准名称】:Powerconvertorsforelectrictraction.Part1:Single-phasepowerconvertorsusingthyristors
【原文标准名称】:电力牵引用电力变换器.第1部分:采用可控硅的单相电力变换器
【标准号】:IEC60411-1-1975
【标准状态】:作废
【国别】:国际
【发布日期】:1975
【实施或试行日期】:
【发布单位】:国际电工委员会(IEC)
【起草单位】:IEC/SC22D
【标准类型】:()
【标准水平】:()
【中文主题词】:电力变换器;铁道车辆;半导体闸流管;铁路电力牵引装置;电力牵引;电子工程;电力电子学;牵引车辆
【英文主题词】:electricconvertors;powerelectronics;thyristors;electrictraction;railwayelectrictractionequipment;railwayvehicles;electronicengineering;tractionvehicles
【摘要】:
【中国标准分类号】:K46;K63
【国际标准分类号】:2220;1580
【页数】:61P;A4
【正文语种】:英语