ISO 14673-3-2001 乳和乳制品硝酸盐和亚硝酸盐含量的测定第3部分：线渗析镉还原和流注入分析方法(常规法)

上一篇: ISO 14673-1-2001 乳和乳制品硝酸盐和亚硝酸盐含量的测定第1部分：镉还原和光谱法
下一篇: ISO 14673-2-2001 乳和乳制品硝酸盐和亚硝酸盐含量的测定第2部分：分层流分析法(常规法)

【英文标准名称】:StandardPracticeforSamplingManufacturedStapleFibers,Sliver,orTowforTesting
【原文标准名称】:纺纱用人造短纤维、长纤维或亚麻短纤维试验取样标准实施规范
【标准号】:ASTMD3333-2007
【标准状态】:现行
【国别】:
【发布日期】:2007
【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】:D13.58
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:化学纤维;工艺;抽样方法;纺织纤维;纺织材料
【英文主题词】:sampling;textilefiber;textilestrand
【摘要】:Assigningavaluetoanypropertyofthematerialinacontainerorinalot,consignment,ordeliveryinvolvesameasurementprocessthatincludesbothsamplingandtestingprocedures.Thecorrectnessofthevalueassigneddependsuponthevariabilityduetotesting.Evenwhenthevariabilityduetotestingisminimizedbycarefullydevelopedprocedures,correctandconsistentestimatesofthetruevalueofthepropertyarepossibleonlywhenthesamplingprocedureavoidssystematicbias,minimizesvariationsduetosampling,andprovidesalaboratorysampleofadequatesize.Thispracticemaynotgivethemostefficientsamplingplanthatmightbedevisedinspecialsituationsbutitdoespresentageneralprocedurethatgivessatisfactoryprecisionwithaneconomicalamountofsamplingandonewhichdoesnotrequireelaboratestatisticalcomputationbasedonpreviousknowledgeoftheamountofvariationbetweenlotsamples,betweenlaboratorysamples,andbetweentestspecimens.Thesmallestnumberofspecimensrequiredforagivenvariabilityintheaverageresultwillusuallybeobtainedby(1)minimizingthenumberofshippingunitsinthelotsample,(2)takingoneoftheshippingunitsinthelaboratorysample,and(3)takingtheprescribedspecimen(s)fromtheselectedlaboratorysampleshippingunit.(See7.3and7.4.)Tominimizethecostofsamplingalotofmaterial,itisnecessarytoagreeontherequiredvarianceforthereportedaverageforalotofmaterial:5.4.1Estimatethevarianceduetolotsamples,thevarianceduetolaboratorysamples,andthevarianceduetotestspecimens.5.4.2Calculatethetotalvariancefortheaveragetestresultsforseveralcombinationsofthenumberoflotsamples,thenumberoflaboratorysamplesperlotsample,andthenumberoftestspecimensperlaboratorysample.5.4.3Calculatethecostofperformingeachofthesamplingschemesconsideredin5.4.2.5.4.4Selectthesamplingschemethat(1)hastherequiredprecision,and(2)ismosteconomicaltoperform.1.1Thispracticecoversaprocedureforthedivisionofshipmentsofmanufacturedstaplefiber,sliver(ortop)ortowintolotsandthesamplingofsuchlotsfortesting.Note1Forsamplingyarns,refertoPracticeD2258.Note2ThispracticediffersfromBISFArulesforstaplefibersinthelotsampling,bytheeliminationofseparatesamplingofouterversusinnercontainerareas,inthereductionofnumberofstratafrom6to5,andbytheeliminationofcompositingtoobtainasinglelaboratorysampleforthelotwhentestingpropertieswhichdonotdependonas-receivedmoisturecontent.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:W04
【国际标准分类号】:59_060_20
【页数】:3P.;A4
【正文语种】:


【英文标准名称】:Softwareergonomicsformultimediauserinterfaces-Part2:Multimedianavigationandcontrol
【原文标准名称】:多媒体用户接口的软件人类工效学.第2部分:多媒体导航和控制
【标准号】:ISO14915-2-2003
【标准状态】:现行
【国别】:国际
【发布日期】:2003-07
【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/TC159
【标准类型】:()
【标准水平】:()
【中文主题词】:视频;信息技术;使用条件;人类工效学;人与机器的;定义;多媒体;自然工作条件;媒体访问控制;设计;界面;计算机软件;导航;编写;控制;结构;表示(法);数据处理;音频;接口(数据处理);组织和方法;用户界面;对话设计;用户
【英文主题词】:Audio;Computersoftware;Computers;Conditionofuse;Control;Dataprocessing;Definitions;Design;Dialoguedesign;Ergonomics;Informationtechnology;Interfaces;Interfaces(dataprocessing);Man-machine;Mediumaccesscontrol;Multimedia;Navigation;Organizationandmethods;Presentations;Representations;Structure;Userinterface;Users;Video;Visualdisplayworkstations;Workingconditions(physical)
【摘要】:ThispartofISO14915providesrecommendationsandrequirementsforthedesignofmultimediauserinterfaceswithrespecttothefollowingaspects:designoftheorganizationofthecontent,navigationandmedia-controlissues.ThispartofISO14915islimitedtothedesignoftheorganizationofthecontentanddoesnotdealwiththedesignofthecontentingeneral.Designissueswithinasinglemedium(e.g.thelightingofafilmsequence)areonlyaddressedwithrespecttotheergonomicissuesrelatedtousercontrols.ThispartofISO14915provides—aframeworkforthestructuringofmultimediaapplications,—informationandrecommendationsonthedesignofnavigationstructuresandnavigationmechanismsforusewithinmultimediaapplications,and—informationandrecommendationsonthedesignofcontrolsforusewithinmultimediaapplications.Itdoesnotspecificallyaddressentertainmentapplications,althoughsomerecommendationscanalsobeapplicabletothatdomain.ISO14915doesnotaddressimplementationissues.Theergonomicrequirementscanberealisedthroughverydifferentmechanisms,e.g.thedeliverysystem,ascriptinglanguageortheapplication.
【中国标准分类号】:A25
【国际标准分类号】:13_180;33_160_60
【页数】:33P;A4
【正文语种】:英语