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ISO/IEC 13660-2001 信息技术办公设备硬拷贝输出图象质量属性的测量二进制单色文本和图象

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【英文标准名称】:Informationtechnology-Officeequipment-Measurementofimagequalityattributesforhardcopyoutput;Binarymonochrometextandgraphicimages
【原文标准名称】:信息技术办公设备硬拷贝输出图象质量属性的测量二进制单色文本和图象
【标准号】:ISO/IEC13660-2001
【标准状态】:现行
【国别】:国际
【发布日期】:2001-09
【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/IECJTC1
【标准类型】:()
【标准水平】:()
【中文主题词】:数据处理;定义;工作特性;打印质量;单色;图像处理;打印机;正文;信息技术;图象质量;图形表示;测量技术;办公机器;测量
【英文主题词】:Dataprocessing;Definitions;Graphicrepresentation;Imageprocessing;Imagequality;Informationtechnology;Measurement;Measuringtechniques;Monochrom;Officemachines;Performancecharacteristics;Printers;Printingquality;Text
【摘要】:ThisInternationalStandardspecifiesdevice-independentimagequalityattributes,measurementmethods,andanalyticalprocedurestodescribethequalityofoutputimagesfromhardcopydevices.ThisInternationalStandardisapplicabletohuman-readabledocumentscomposedofbinarymonochromeimagesproducedfromimpactprinters,non-impactprinters,andcopiers.Theattributes,methods,andproceduresrelyonintrinsicpropertiesoftheimage.Targetsorreferenceimagesarenotrequired.TheInternationalStandardisnotapplicabletoimagesonmediaotherthanhardcopy(e.g.imagesonaVDT)ortoimagesthatareintendedtobemachinereadableonly(e.g.barcodes).ThisInternationalStandardisnotintendedtoapplytopictorialart.Itisoptimizedforblackcolourantformingtheimageonawhitesubstrate;itisnotintendedtobeusedfordroppedoutorreversedtypeorfortransparencies.Theevaluationofanimagewithanyothercolourofcolourantorsubstratewillbesensitivetochangesinillumination.Inthiscase,theproceduresofthisInternationalStandardmaynotbeapplicableandshouldbeusedwithcaution.
【中国标准分类号】:L81
【国际标准分类号】:35_180;37_100_10
【页数】:27P;A4
【正文语种】:英语


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【英文标准名称】:Below-gradevaultsforflammableliquidstoragetanks
【原文标准名称】:易燃液体存储罐用基准标高以下的存储室
【标准号】:UL2245-1999
【标准状态】:作废
【国别】:美国
【发布日期】:1999-02-25
【实施或试行日期】:
【发布单位】:美国保险商实验所(UL)
【起草单位】:UL
【标准类型】:()
【标准水平】:()
【中文主题词】:水箱;地下;易燃材料;可燃液体;密封;混凝土;拱形圆屋顶;钢
【英文主题词】:Combustibleliquids;Concretes;Flammablematerials;Sealing;Steels;Tanks(containers);Underground;Vaults
【摘要】:
【中国标准分类号】:E98
【国际标准分类号】:23_020_10
【页数】:16P;A4
【正文语种】:英语


【英文标准名称】:StandardPracticeforSamplingPhytoplanktonwithConicalTowNets
【原文标准名称】:用圆锥拖网取样可繁殖海洋浮游生物的标准实施规程
【标准号】:ASTMD4132-1982(2004)
【标准状态】:现行
【国别】:
【发布日期】:1982
【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】:E47.01
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:资源取回;浮游生物;抽样方法;渔网;污染控制;水质
【英文主题词】:
【摘要】:Theadvantagesofconicaltownetsareasfollows:3.1.1Theyarerelativelyinexpensive,easytoconstruct,andhighlyversatileinavarietyofsurfacewaters.3.1.2Theycanbeusedfromasmallpoweredboatwithaminimumofauxiliaryequipment.3.1.3Theyprovideasimplemeansbywhichtocollectqualitativesamplesofmacro-andmicro-plankton.3.1.4Theycanbeadaptedwithaflowmetertocollectsemiquantitativesamplesofmacro-andmicro-plankton.Thedisadvantagesofconicaltownetsareasfollows:3.2.1Theyareeffectiveonlywheredrawnthroughastratumofwaterhavingconsiderablethickness.Theyarenotsuitableforcollectingsamplesfromasmallorrestrictedregion.3.2.2Theyarenotsuitableforcollectionsinveryshallowwater.3.2.3Theycollectonlyqualitativesamples,orsemiquantitativesampleswhenusedwithaflowmeter.3.2.4Cloggingofthenetbyextraneousmaterials,suchasfloatingvascularplantsordebriscancauseerroneousresults.3.2.5Ifdiscretedepthsaresampledusingahorizontaltow,thesamplecanbecontaminatedwithorganismsfromotherdepthsduringthedeploymentandretrievalofthesamples.Thereareseveralspecialconsiderationsthatshallbeobservedwhenusingconicaltownets.Theyareasfollows:3.3.1Theconicalnetsamplersaredesignedtobetowedatspeedslessthan3knots;however,greaterspeedshavebeenusedforthelargernetswithaconcomitantincreaseincapture.3.3.2Althoughthereisatendencytousethesmallestmeshsizeavailable,thereistheliabilityofsmallmeshsizesreducingthecollectionefficiencyandincreasingequipmentfailurethroughtearing.3.3.3Ifdiscretedepthsamplesarerequired,anopeningandclosingnetdeviceshouldbeinstalledonthesampler.3.3.4Thenetsshouldbewashedfrequentlyandinspectedforpin-sizeholes,tears,netdeterioration,andotheranomalies.3.3.5Followinguse,wetnetsshouldbesuspendedfulllengthinairandinsubduedlightandallowedtodry.1.1Thispracticecoverstheproceduresforobtainingqualitativesamplesofaphytoplanktoncommunitybyuseofconicaltownets.Netswillnotretainallphytoplanktontaxa;forexample,nannoplanktonandultraplanktongenerallywillpassthroughanet.1.1Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:Z16
【国际标准分类号】:
【页数】:2P.;A4
【正文语种】: