【英文标准名称】:Informationprocessing;datainterchangeon130mm(5,25in)flexiblediskcartridgesusingmodifiedfrequencymodulationrecordingat7958ftprad,3,8tpmm(96tpi),onbothsides;part1:dimensional,physicalandmagneticcharacteristics(ISO8378-1:19
【原文标准名称】:信息处理.数据交换用130mm(5.25in)改进调频制记录,密度为7958ftprad、3.8tpmm(96tpi)的双面软磁盘.第1部分:尺寸、物理性能和磁性能
【标准号】:DINEN28378-1-1991
【标准状态】:作废
【国别】:德国
【发布日期】:1991-12
【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】:尺寸;试验;物理性能;规范(批准);双频记录方式;定义;软盘;记录;检验;数据处理;信息处理;信息交流;磁性能;双向;物理的;导轨配置;特性;可置换性;数据记录;信息交换;导轨;数据;数据媒体;磁盘;磁道间距
【英文主题词】:
【摘要】:
【中国标准分类号】:L64
【国际标准分类号】:35_220_21
【页数】:17P;A4
【正文语种】:德语


【英文标准名称】:StandardPracticeforOperatingFluorescentLightApparatusforUVExposureofNonmetallicMaterials
【原文标准名称】:非金属材料紫外线曝光用荧光仪器操作的标准实施规范
【标准号】:ASTMG154-2006
【标准状态】:现行
【国别】:
【发布日期】:2006
【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】:G03.03
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:人工气候环境试验;荧光的;非金属的;紫外的;耐气候老化
【英文主题词】:accelerated;acceleratedweathering;durability;exposure;fluorescentUVlamps;laboratoryweathering;light;lightfastness;non-metallicmaterials;temperature;ultraviolet;weathering
【摘要】:1.1ThispracticecoversthebasicprinciplesandoperatingproceduresforusingfluorescentUVlight,andwaterapparatusintendedtoreproducetheweatheringeffectsthatoccurwhenmaterialsareexposedtosunlight(eitherdirectorthroughwindowglass)andmoistureasrainordewinactualusage.Thispracticeislimitedtotheproceduresforobtaining,measuring,andcontrollingconditionsofexposure.Anumberofexposureproceduresarelistedinanappendix;however,thispracticedoesnotspecifytheexposureconditionsbestsuitedforthematerialtobetested.Note1PracticeG151describesperformancecriteriaforallexposuredevicesthatuselaboratorylightsources.ThispracticereplacesPracticeG53,whichdescribesveryspecificdesignsfordevicesusedforfluorescentUVexposures.TheapparatusdescribedinPracticeG53iscoveredbythispractice.1.2TestspecimensareexposedtofluorescentUVlightundercontrolledenvironmentalconditions.DifferenttypesoffluorescentUVlightsourcesaredescribed.1.3SpecimenpreparationandevaluationoftheresultsarecoveredinASTMmethodsorspecificationsforspecificmaterials.GeneralguidanceisgiveninPracticeG151andISO4892-1.MorespecificinformationaboutmethodsfordeterminingthechangeinpropertiesafterexposureandreportingtheseresultsisdescribedinISO4582.1.4ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.1.5ThisstandardistechnicallysimilartoISO4892-3andISODIS11507.
【中国标准分类号】:H20
【国际标准分类号】:19_040
【页数】:11P.;A4
【正文语种】: