ISO/IEC 15485-1997 信息技术使用相变PD格式的120mm盒式光盘上的数据交换容量:每盒650MB

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【英文标准名称】:Informationtechnology-Datainterchangeon120mmopticaldiskcartridgesusingphasechangePDformat-Capacity:650Mbytespercartridge
【原文标准名称】:信息技术使用相变PD格式的120mm盒式光盘上的数据交换容量:每盒650MB
【标准号】:ISO/IEC15485-1997
【标准状态】:现行
【国别】:国际
【发布日期】:1997-12
【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】:规范(验收);信息技术;只读数据光盘;光盘;数据处理;数据记录;信息交流;定义;数据存储;物理性能;磁道格式;记录特性
【英文主题词】:CD-ROM;Dataprocessing;Datarecording;Datastorage;Definition;Definitions;Informationexchange;Informationtechnology;Opticaldisks;Physicalproperties;Recordingcharacteristics;Specification(approval);Trackformats
【摘要】:ThisInternationalStandardspecifiesthecharacteristicsof120mmOpticalDiskCartridges(ODCs)withacapacityof650MbytesusingPhaseChangePDformat.ThispresentInternationalStandardspecifiestworelated,butdifferentimplementationsofsuchcartridges,viz.TypeR/WProvidesfordatatobewritten,readandoverwrittenmanytimesoverthewholerecordingsurfaceofthediskusingthephasechangerecordingandread-outmethod.TypeWORMProvidesfordatatobewrittenonceandreadmanytimesoverthewholerecordingsurfaceofthediskusingthephasechangerecordingandread-outmethod.TypeR/WandTypeWORMarealsoreferredtoas"rewritable"and"write-once"respectively.ThisInternationalStandardspecifies-theconditionsforconformancetestingandtheReferenceDrive;-theenvironmentsinwhichthecartridgesaretobeoperatedandstored;-themechanicalandphysicalcharacteristicsofthecartridge,soastoprovidemechanicalinterchangeabilitybetweendataprocessingsystems;-theformatoftheinformationonthediskknownasthePDformat;includingthephysicaldispositionofthetracksandsectors,theerrorcorrectioncodes,andthemodulationmethodused;-thecharacteristicsoftheembossedinformationonthedisk;-thephasechangerecordingcharacteristicsofthedisk,enablingdataprocessingsystemstowritedataontothedisk;-theminimumqualityofuser-writtendataonthedisk,enablingdataprocessingsystemstoreaddatafromthedisk.ThisInternationalStandardprovidesforinterchangebetweenopticaldiskdrives.Togetherwithastandardforvolumeandfilestructure,itprovidesforfulldatainterchangebetweendataprocessingsystems.
【中国标准分类号】:L64
【国际标准分类号】:35_220_30
【页数】:90P.;A4
【正文语种】:英语


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【英文标准名称】:StandardTestMethodforMeasuringSoftballBatPerformanceFactor
【原文标准名称】:测量垒球球棒性能因数的标准试验方法
【标准号】:ASTMF1890-2009
【标准状态】:现行
【国别】:美国
【发布日期】:2009
【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】:F08.26
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:batperformance;BBCOR;BBS;BPF;COR;softballbats;softballs;BPF(batperformancefactor);Coefficientofrestitution(COR);Softballequipment;Sportsequipment
【摘要】:Thistestmethodoffersalaboratorymeanstocomparetheperformanceofasoftballbat.UseofthistestmethodcanprovidesportsgoverningbodiesameanstocomparecalculatedBBSandotherphysicalpropertiesofbats.1.1Thistestmethodcoversamethodfordeterminingbatperformancebymeasuringthebat-ballcoefficientofrestitution(BBCOR),derivingthebatperformancefactor(BPF)andcalculatingabattedballspeed(BBS).Itisapplicabletosoftballbatsofanyconstructionormaterial.Themethodprovidesaquantitativemeasureofbatdynamicperformancethatmaybeusedforcomparisonpurposes.1.2TheBBCOR,BPF,andBBSareeachcalculatedfrommeasurementstakeninthelaboratoryontestequipmentmeetingtherequirementsdefinedinthisspecification.1.3Thevaluesstatedininch-poundunitsaretoberegardedasstandard.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunitsthatareprovidedforinformationonlyandarenotconsideredstandard.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatoryrequirementspriortouse.
【中国标准分类号】:Y56
【国际标准分类号】:97_220_40
【页数】:4P.;A4
【正文语种】:英语


【英文标准名称】:ReferencePhotographsforMagneticParticleIndicationsonFerrousCastings
【原文标准名称】:铁铸件的磁粉检验用参考照片
【标准号】:ANSI/ASTME125-1996
【标准状态】:作废
【国别】:美国
【发布日期】:1996-10
【实施或试行日期】:
【发布单位】:美国国家标准学会(ANSI)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:铸件;铁;摄影;无损检验
【英文主题词】:photography;non-destructivetesting;castings;iron
【摘要】:
【中国标准分类号】:H26
【国际标准分类号】:77_140_80
【页数】:
【正文语种】:英语