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【英文标准名称】:Informationtechnology-Datainterchangeon90mmopticaldiskcartridges-HS-1format-Capacity:650Mbytespercartridge
【原文标准名称】:信息技术.90mm盒式光盘上的数据交换.HS-1格式.容量:每盒650Mbytes
【标准号】:ISO/IEC15498-1997
【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】:数据处理;数据记录;定义;尺寸;信息交换;信息技术;机械性能;ODC;光盘;光学特性;物理性能;规范(验收);磁道格式
【英文主题词】:Dataprocessing;Datarecording;Definition;Definitions;Dimensions;Informationinterchange;Informationtechnology;Mechanicalproperties;ODC;Opticaldisks;Opticalproperties;Physicalproperties;Specification(approval);Trackformats
【摘要】:ThisInternationalStandardspecifiesthecharacteristicsof90mmOpticalDiskCartridges(ODC)withacapacityof650MbytesperCartridge.TheStandardspecifiesthreerelated,butdifferentimplementationsofsuchcartridges,viz.TypeR/WProvidesfordatatobewrittenandreadmanytimesovertherecordingsurfaceofthediskusingthethermo-magneticandmagneto-opticaleffects.TypeP-ROMProvidesforapartoftherecordingsurfaceofthedisktobeembossedbystampingorothermeans.Thispartofthediskisreadwithoutrecoursetothemagneto-opticaleffect.ThepartwhichisnotembossedprovidesfordatatomeettherequirementsofTypeR/W.TypeO-ROMProvidesfortherecordingsurfaceofthedisktobeembossedandreproducedbystampingorothermeans.Thistypeofdiskisreadwithoutrecoursetothemagneto-opticaleffect.TypeR/W,TypeP-ROMandType0-ROMarealsoreferredtoas"fullyrewritable","partiallyembossed"and"fullyembossed",respectively.ThisInternationalStandardspecifies-theconditionsforconformancetestingandtheReferenceDrive;-theenvironmentsinwhichthecartridgesaretobeoperatedandstored;-themechanicalandphysicalcharacteristicsofthecartridge,soastoprovidemechanicalinterchangeabilitybetweendataprocessingsystems;-theformatoftheinformationonthedisk,calledHS-1(HSstandsfor"Hyper-Storage"),includingthephysicaldispositionofthetracksandsectors,theerrorcorrectioncodes,andtherecordingmethodused;-thecharacteristicsoftheembossedinformationonthedisk;-themagneto-opticalcharacteristicsofthedisk,enablingprocessingsystemstowritedataontothedisk;-theminimumqualityofuser-writtendataonthedisk,enablingdataprocessingsystemstoreaddatafromthedisk.ThisInternationalStandardprovidesforinterchangebetweenopticaldiskdrives.Togetherwithastandardforvolumeandfilestructure,itprovidesforfulldatainterchangebetweendataprocessingsystems.
【中国标准分类号】:L64;L72
【国际标准分类号】:35_220_30
【页数】:116P.;A4
【正文语种】:英语


【英文标准名称】:Highvoltageindustrialcontrolequipment
【原文标准名称】:高压工业控制设备
【标准号】:UL347-1993
【标准状态】:作废
【国别】:美国
【发布日期】:1993-08-31
【实施或试行日期】:
【发布单位】:美国保险商实验所(US-UL)
【起草单位】:UL
【标准类型】:()
【标准水平】:()
【中文主题词】:工业设施;控制设备;工业设备;电动机;监视器;高电压
【英文主题词】:Controlequipment;Electricmotors;Highvoltage;Industrialfacilities;Industrialplants;Monitors
【摘要】:Coversenclosedindustrialcontrolequipmentandassociatedcomponentsintendedforstarting,stopping,regulating,controlling,orprotectingelectricmotorsorotherelectricalloads,includingrefrigerationequipment.ThisequipmenthasACvoltageratingsintherangeof2.2-2.5or4.0-4.5kilovolts,andisintendedforuseinordinarylocationsinaccordancewithANSI/NFPA70-1981,NationalElectricalCode.Therequirementsinthisstandard,asmodifiedbyANSI/NFPA20-1980,CentrifugalFirePumps,alsocoverfirepumpcontrollers.Thisstandarddoesnotcoverelectronicorstaticdevices,circuits,orsystems.Nordoesitcovertheinternalconstructionofelectricalinstrumentssuchasmeters.
【中国标准分类号】:K32
【国际标准分类号】:29_130_10
【页数】:60P.;A4
【正文语种】:英语