【英文标准名称】:Informationtechnology-AutomaticIdentificationanddatacapturetechniques-QRCode2005barcodesymbologyspecification
【原文标准名称】:信息技术.自动识别和数据采集技术.QR编码2005条形码符号规范
【标准号】:BSISO/IEC18004-2006
【标准状态】:现行
【国别】:英国
【发布日期】:2007-04-30
【实施或试行日期】:2007-04-30
【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;识别;信息交流;信息交换;信息技术;符号;
【英文主题词】:Automatic;Barcode;Codedrepresentation;Coding(dataconversion);Dataacquisition;Dataformats;Dataprocessing;Datarepresentation;Definitions;Identification;Informationexchange;Informationinterchange;Informationtechnology;Symbols;
【摘要】:ThisInternationalStandarddefinestherequirementsforthesymbologyknownasQRCode2005.ItspecifiestheQRCode2005symbologycharacteristics,datacharacterencodingmethods,symbolformats,dimensionalcharacteristics,errorcorrectionrules,referencedecodingalgorithm,productionqualityrequirements,anduser-selectableapplicationparameters,andlistsinaninformativeannexthefeaturesofQRCodeModel1symbolswhichdifferfromQRCode2005.
【中国标准分类号】:L70
【国际标准分类号】:
【页数】:126P.;A4
【正文语种】:英语


【英文标准名称】:StandardGuideforHandlingSpecimensPriortoSurfaceAnalysis
【原文标准名称】:先于表面分析的样品处置标准指南
【标准号】:ASTME1829-2002
【标准状态】:现行
【国别】:
【发布日期】:2002
【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】:E42.03
【标准类型】:(Guide)
【标准水平】:()
【中文主题词】:
【英文主题词】:augerelectronspectroscopy;secondaryionmassspectrometry;specimenhandling;surfaceanalysis;X-rayphotoelectronspectroscopy
【摘要】:Properhandlingandpreparationofspecimensisparticularlycriticalforanalysis.Improperhandlingofspecimenscanresultinalterationofthesurfacecompositionandunreliabledata.Specimensshouldbehandledcarefullysoastoavoidtheintroductionofspuriouscontaminants.Thegoalmustbetopreservethestateofthesurfacesothatanalysisremainsrepresentativeoftheoriginalsubject.Augerelectronspectroscopy(AES),X-rayphotoelectronspectroscopy(XPS),andsecondaryionmassspectroscopy(SIMS)aresensitivetosurfacelayersthataretypicallyafewnanometresthick.Suchthinlayerscanbesubjecttosevereperturbationsfromimproperspecimenhandling(1).3Thisguidedescribesmethodstominimizetheeffectsofspecimenhandlingontheresultsobtainedusingsurface-sensitiveanalyticaltechniques.Itisintendedforthespecimenownerorthepurchaserofsurfaceanalyticalservicesandthesurfaceanalyst.Becauseofthewiderangeoftypesofspecimensanddesiredinformation,onlybroadguidelinesandgeneralexamplesarepresentedhere.Theoptimumhandlingprocedureswillbedependentontheparticularspecimenandtheneededinformation.Itisrecommendedthatthespecimensupplierconsultthesurfaceanalystassoonaspossiblewithregardtospecimenhistory,thespecificproblemtobesolvedorinformationneeded,andtheparticularspecimenpreparationorhandlingproceduresrequired.ThesurfaceanalystalsoisreferredtoGuideE1078thatdiscussesadditionalproceduresforpreparing,mounting,andanalysisofspecimens.1.1Thisguidecoversspecimenhandlingandpreparationpriortosurfaceanalysisandappliestothefollowingsurfaceanalysisdisciplines:1.1.1Augerelectronspectroscopy(AES),1.1.2X-rayphotoelectronspectroscopy(XPSorESCA),and1.1.3Secondaryionmassspectrometry,SIMS.1.1.4AlthoughprimarilywrittenforAES,XPS,andSIMS,thesemethodsmayalsoapplytomanysurface-sensitiveanalysismethods,suchasionscatteringspectrometry,low-energyelectrondiffraction,andelectronenergylossspectroscopy,wherespecimenhandlingcaninfluencesurface-sensitivemeasurements.1.2Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:J04
【国际标准分类号】:71_040_50(PHYSICOCHEMICALMETHODSOFANALYSIS)
【页数】:5P.;A4
【正文语种】: