您的位置: 标准下载 » 国际标准 » ANSI 美国国家标准 »

ANSI/INCITS/ISO/IEC 7487-1-2010 信息处理.利用在7958ftprad,1.9tpmm(48tpi)上双面变频调制记录的130mm(5.25in)盒式软盘上的数据交换.ISO202型.第1部分:尺寸规格,物理和磁性特征

作者:标准资料网 时间:2024-05-02 12:15:13  浏览:8252   来源:标准资料网
下载地址: 点击此处下载
【英文标准名称】:Informationtechnology-Datainterchangeon130mm(5,25in)flexiblediskcartridgesusingmodifiedfrequencymodulationrecordingat7958ftprad,1,9tpmm(48tpi),onbothsides-ISOtype202-Part1:Dimensional,physicalandmagneticcharacteristi
【原文标准名称】:信息处理.利用在7958ftprad,1.9tpmm(48tpi)上双面变频调制记录的130mm(5.25in)盒式软盘上的数据交换.ISO202型.第1部分:尺寸规格,物理和磁性特征
【标准号】:ANSI/INCITS/ISO/IEC7487-1-2010
【标准状态】:现行
【国别】:美国
【发布日期】:2010
【实施或试行日期】:
【发布单位】:美国国家标准学会(US-ANSI)
【起草单位】:ANSI
【标准类型】:()
【标准水平】:()
【中文主题词】:板材;可燃性;数据;数据交换;数据介质;数据处理;数据记录;定义(术语);尺寸规格;双向;耐久性;电磁的;电磁学;外层;交换;软盘;信息;信息交流;信息交换;信息处理;信息技术;仪器;干扰;布置;磁盘;磁性能;磁记录;材料;存储;不透明度;物理的;物理性能;特性;记录;可置换性;信号;规范(验收);规格;磁道格式;导轨配置;磁道间距;磁道;双频记录方式
【英文主题词】:Boards;Combustibility;Data;Dataexchange;Datamedia;Dataprocessing;Datarecording;Definitions;Dimensions;Doubledirection;Durability;Electromagnetic;Electromagnetism;Envelopes;Exchange;Flexibledisks;Information;Informationexchange;Informationinterchange;Informationprocessing;Informationtechnology;Instruments;Interferences;Layout;Magneticdisks;Magneticproperties;Magneticrecording;Materials;Memory;Opacity;Physical;Physicalproperties;Properties;Recording;Replaceability;Signals;Specification(approval);Specifications;Trackformats;Tracklayout;Trackpitch;Tracks;Two-frequencyrecordingmode
【摘要】:Specifiesthedimensional(environmentandtransportation,dimensionofjacket,lineranddisk),physical(inflammability,coefficientoflinearthermalexpansion,coefficientoflinearhygroscopicexpansion,opacity,torque)andmagnetic(trackgeometry,functionaltesting)characteristicsandrequirementsofthecartridgesoastoprovidephysicalinterchangeabilitybetweendataprocessingsystems.
【中国标准分类号】:L64
【国际标准分类号】:35_220_21
【页数】:
【正文语种】:英语


下载地址: 点击此处下载
基本信息
标准名称:钻柱转换接头
中标分类: 石油 >> 石油勘探、开发、集输设备 >> 石油钻采设备与仪器
替代情况:SY 5200-87;被SY/T 5200-2002代替
发布日期:1993-03-27
实施日期:1993-09-01
首发日期:
作废日期:2002-08-01
出版日期:
页数:24页
适用范围

没有内容

前言

没有内容

目录

没有内容

引用标准

没有内容

所属分类: 石油 石油勘探 开发 集输设备 石油钻采设备与仪器
【英文标准名称】:Electricalapparatusforexplosivegasatmospheres-Part26:Construction,testandmarkingofGroupⅡCategory1Gelectricalapparatus
【原文标准名称】:爆炸性气体环境用电气设备.II组IG类电气设备的制造、试验和标记
【标准号】:BSEN60079-26-2004
【标准状态】:作废
【国别】:英国
【发布日期】:2005-02-02
【实施或试行日期】:2005-02-02
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:通风;防护电气设备;电气设备;爆炸性;分类系统;潜在爆炸物;危险区域;大气;爆炸危险;爆炸性环境;保护形式;隔墙;电驱动装置;易燃材料;保护措施;设计;定义;试验;分类;易燃性;设备;防爆;炸药;燃烧气体;爆炸区;规范(验收);作标记;安全要求;电气工程;安全;可燃性环境;多语种的
【英文主题词】:Atmosphere;Burninggases;Classification;Classificationsystems;Dangerzones;Definition;Definitions;Design;Electricappliances;Electricalengineering;Electricalequipment;Electricalinstallations;Electrically-operateddevices;Equipment;Explosionarea;Explosionhazard;Explosionprotection;Explosionsecurity;Explosion-proof;Explosive;Explosiveatmospheres;Explosives;Flammableatmospheres;Flammablematerials;Inflammable;Marking;Multilingual;Partitions;Potentiallyexplosivematerials;Protectedelectricalequipment;Protectivemeasures;Safety;Safetyrequirements;Specification(approval);Testing;Typeofprotection;Ventilation
【摘要】:ThispartofIEC60079specifiestheparticularrequirementsforconstruction,testandmarkingforelectricalapparatusofGroupⅡintendedforuseinZone0asdefinedinIEC60079-10.Thiselectricalapparatus,withintheoperationalparametersspecifiedbythemanufacturer,ensuresaveryhighlevelofprotectionthatincludesrarefaultsrelatedtotheapparatusortwofaultsoccurringindependentlyofeachother.NOTE1Amalfunctionmayresultfromafailureofthecomponentpartsoftheelectricalapparatusorfromanticipatedexternallyappliedinfluences.Twoindependentmalfunctionswhichmayoccurmorefrequentlyandwhich,separately,wouldnotcreateanignitionhazardbutwhich,incombination,couldcreateapotentialignitionhazard,shouldberegardedasoccurringtogethertoformararefault.ThiselectricalapparatusisintendedforuseinZone0hazardousareas,inwhichexplosivegasatmospherescausedbymixturesofairandgases,vapoursormistsundernormalatmosphericconditionsarepresentcontinuously,forlongperiodsorfrequently.ThisstandardalsoappliestoapparatusmountedacrosstheboundarybetweenZone0andZone1.EXAMPLE:Inthewallofastoragevessel.ThisstandardalsoappliestoapparatusinstalledoutsideZone0,butelectricallyconnectedtoapparatusinsideZone0(associatedapparatus).ThisstandardsupplementsthegeneralrequirementsinIEC60079-0andtherequirementsofthestandardizedtypesofprotection,inaccordancewiththeIEC60079series,toadaptthelevelofsafetyprovidedbythosestandardstotheveryhighlevelofriskinZone0.NOTE2IndesigningapparatusforoperationinexplosivegasatmospheresunderconditionsotherthantheatmosphericconditionsgiveninIEC60079-0,thisstandardmaybeusedasaguide.However,additionaltestingisrecommendedrelatedspecificallytotheintendedconditionsofuse.Thisisparticularlyimportantwhenthetypesofprotection'Flameproofenclosure'(IEC60079-1)and'Intrinsicsafety'(IEC60079-11)areapplied.NOTE3TheclassificationofhazardousareasinzonesisdefinedinIEC60079-10.NOTE4Theremaybeothernon-electricalsourcesofignition(forexampleultrasonic,opticalorionizingradiation)thatarenotaddressedbythisstandard;theseshouldalsobetakenintoconsideration(see,forexample,EN1127-1).
【中国标准分类号】:K35
【国际标准分类号】:13_230;29_260_20
【页数】:20P.;A4
【正文语种】:英语