BS 6404-8.1-1989 磁性材料.第8部分:特定材料.第1节:硬磁性材料规范

上一篇: BS 7079 Pt.A1 Supplement 1-1989 涂料和有关产品涂覆之前钢基片的制备.第A集:表面清洁度视觉评定.第1部分:未涂覆钢基片和钢基片全部清除以后生锈程度和制备程度的规范.第1次补充
下一篇: DIN EN 10020-1989 钢的等级的定义和划分

【英文标准名称】:Informationtechnology-CDIFsemanticmetamodel-Part4:Datamodels
【原文标准名称】:信息技术.CDIF语义元模型.第4部分:数据模型
【标准号】:ISO/IEC15476-4-2005
【标准状态】:现行
【国别】:国际
【发布日期】:2005-12
【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/SC7
【标准类型】:()
【标准水平】:()
【中文主题词】:CDIF;数据格式;数据模型;数据处理;数据传送;数据库语言;定义;信息交换;信息技术;建模;语义学
【英文主题词】:CDIF;Dataformats;Datamodels;Dataprocessing;Datatransfer;Databaselanguages;Definition;Definitions;Informationinterchange;Informationtechnology;Modelling;Semantics
【摘要】:TheCDIFfamilyofInternationalStandardsisprimarilydesignedtobeusedasadescriptionofamechanismfortransferringinformationbetweenmodellingtools.ItfacilitatesasuccessfultransferwhentheauthorsoftheimportingandexportingtoolshavenothingincommonexceptanagreementtoconformtoCDIF.Thelanguagethatisdefinedforthetransferformatalsohasapplicabilityasagenerallanguageforimport/exportfromrepositories.TheCDIFsemanticmetamodeldefinedforCASEalsohasapplicabilityasthebasisofstandarddefinitionsforuseinrepositories.TheInternationalStandardswhichformthecompletefamilyofCDIFstandardsaredocumentedinISO/IEC15474-1.TheseInternationalStandardscovertheoverallframework,thetransferformatandtheCDIFsemanticmetamodel.ThisInternationalStandarddefinestheportionoftheCDIFsemanticmetamodelthatsupportsgeneralDataModelling.ThisincludesEntity-Relationship-AttributeModellingaswellasLogicalDatabaseDesign.
【中国标准分类号】:L77
【国际标准分类号】:35_080
【页数】:113P;A4
【正文语种】:英语


【英文标准名称】:StandardGuideforPreparingArtificiallyWornPassengerandLightTruckTiresforTesting
【原文标准名称】:试验用人工磨损客车和轻型货车轮胎准备的标准导则
【标准号】:ASTMF1046-2001
【标准状态】:现行
【国别】:
【发布日期】:2001
【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】:F09.20
【标准类型】:(Guide)
【标准水平】:()
【中文主题词】:轮胎;轻型载重车;客车轮箍;人工的;磨损
【英文主题词】:apparatus;artificiallyworn;lighttrucktires;passengertires;procedure;testing
【摘要】:Tireshavingreducedgroovedeptharerequiredinsometireteststodeterminechangesinperformanceasatirewearsinservice.Thisguidedescribesthepreparationofartificiallyworntires.Thisguideisnotmeanttoreplacethedevelopmentofworntiresthroughover-the-roadtravelwhennaturallyworntiresarerequired.Furtherrefinementsofthesetechniquesmaybemadewithincreasedfieldexperience.Theamountoftreadrubbertoberemoved(groovedepthreduction)andthefinalsurfacetextureareselectedaccordingtotherequirementsofaparticulartestingprogram.Thetypeoftestprogramdeterminestheactualtolerancenecessaryonthefinalgroovedepth.Forexample,snowtractionwillrequireveryclosecontrolofthefinalgroovedepthwhilevehiclehandlingtestscanaccommodateawidertoleranceonthefinalgroovedepth.1.1Thisguideoutlinesthepreparationofartificiallyworntiresbytreadrubberremoval(cuttingorgrinding,orboth)forsubsequentperformancetesting.Thepurposeistopermitthepreparationoftesttireswithauniformlyreducedtreadgroovedepthandtreadgeometrythatwillyieldrepeatabletestresultswhileavoidingthetime-consumingandcostlyover-the-roadnaturalwearingoftires.1.2ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:G41
【国际标准分类号】:83_160_10
【页数】:4P.;A4
【正文语种】: