ISO 3098-4-2000 技术产品文件文字第4部分:拉丁字母表用的区分标记和特殊标记
时间:2024-05-05 02:46:27 来源: 标准资料网 作者：标准资料网 阅读：9993
【英文标准名称】:Technicalproductdocumentation-Lettering-Part4:DiacriticalandparticularmarksfortheLatinalphabet
【原文标准名称】:技术产品文件文字第4部分:拉丁字母表用的区分标记和特殊标记
【标准号】:ISO3098-4-2000
【标准状态】:现行
【国别】:国际
【发布日期】:2000-05
【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/TC10
【标准类型】:()
【标准水平】:()
【中文主题词】:尺寸;工艺学;规范(验收);字体;控制;图纸;书写;字母;式样;图形符号;区分标志;工程图;符号;制图体系;西里尔;产品文件;形状;专用字符;图形显示字符;数字;活字尺寸;文字书写;俄语;手写字体;印样;字母表;西里尔字符;拉丁字符;卡规
【英文主题词】:Alphabets;Controlling;Cyrillic;Cyrilliccharacters;Diacriticalmarks;Digits;Drawingsystem;Drawings;Engineeringdrawings;Graphiccharacters;Graphicsymbols;Handwritings;Latincharacters;Lettering;Letterings;Letters(symbols);Patterns;Productsdocumentation;Russianlanguage;Shape;Size;Sizeoftypes;Specialcharacters;Specification(approval);Symbols;Technology;Templates;Writing
【摘要】:ThispartofISO3098specifiesdiacriticalandparticularmarksfortheLatinalphabetforusetogetherwiththecharactersshowninISO3098-2.ThesemarksarelistedinTables1and2accordingtovariouslanguagesinwhichtheyareused.
【中国标准分类号】:A14;A19
【国际标准分类号】:01_100_01;01_110
【页数】:7P.;A4
【正文语种】:英语
【英文标准名称】:StandardTestMethodforMeasuringRollingFrictionCharacteristicsofaSphericalShapeonaFlatHorizontalPlane
【原文标准名称】:在平坦水平面上测量球形滚动摩擦特性的标准试验方法
【标准号】:ASTMG194-2008
【标准状态】:现行
【国别】:美国
【发布日期】:2008
【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】:G02.50
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:balls;coefficientofrollingfriction;plane;rollingfriction;spheres
【摘要】:Rollingfrictionlikeslidingfrictiondependsuponmanyfactors.Itisasystemeffectthatinvolvesthenatureoftherollingsurfaceandthecounterface.Theslidingfrictionforce(F)isusuallyconsideredtobethesumofforcesarisingfromdeformationsofsurfacefeatures(Fs),fromattractiveforces(atomic,molecular,etc.)atcontactpoints(Fa)andforcefrominteractionoffilmsandparticulatesontherubbingsurfaces(Ff):Therollingfrictionforceincludestheseforcecontributionspluseffectsfromtherelativestiffnessofthecontactingsurfaces,thediameter(curvature)ofthesphericalshape(ball,orange,etc.)andotherfactors.Becausetherearesomanyfactorsinvolvedinarollingtribosystem,rollingresistancecanbestbequantifiedbyanactualtestofthesphereofinterestontheintendedcounterface,asinthistestmethod.Therearecountlessapplicationswhereitisimportanttoquantifytherollingcharacteristicsofaparticularsphericalshapeonaparticularsurface.Theinterlaboratorytestsconductedforthistestmethodwereperformedonhardenedsteelballslikethoseusedinballbearings.Thistestmethodcouldbeusedtoassesstheeffectofdifferentcounterfacesurfacesontherollingcharacteristicsofballsforballbearings.Conversely,itcouldbeusedasaqualitycontroltestonballs.Surfaceimperfections/defects/films,etc.ontheballscanaffecthowtheyroll:thedistancetraveledonacommoncounterface.5.3Industrialapplicationsofthistestmethodcanincludeassessingconveyingsurfacesforsphericalornearlyspecialparts:checkvalveballs,cabinetknobs,Christmasornaments,toiletfloats,etc.Manymedicaldevicesusespecialshapeswhererollingcharacteristicsareaconsideration.Similarly,manypharmaceuticalproducts(pills)aresphericalornearlysphericalinshape,andthistestmethodcanbeusedtoassessrollingcharacteristicsforconveyingorotherreasonssuchassize(mass)check.5.4Rollingfrictionofsphericalshapescanbeaconsiderationincountlesssports(soccer,golf,lacrosse,etc.)andgameapplications(billiards,bocce,toys,etc.).Thistestmethodcanbeusedtoranktherollingresistanceofdifferentballcompositions,masses,shapes,surfacetextures,design,stiffness,etc.Similarly,thetestmethodcanbeusedtoassesstheeaseofrollingofballsondifferentplayingorgamesurfaces.5.5Thistestmethodisveryapplicabletosphericalormostlysphericalfoodproducts.Forexample,itiscommontouserollingdistanceofapples,citrus,nuts,etc.toclassifythembysizeformarketing.Theyarerolleddownanangledsurfaceandtherollingdistancebecomesafunctionofsize(mass/diameter).Thistestmethodcanbeusedtoassessthesuitabilityofvariousrollingsurfaces(carpet,metal,wood,etc.)forsuitabilityinclassificationequipment.Itcouldalsobeusedforfoodconveyanceonspherical-shapedprocessedfoods(gumballs,hardcandy,meatballs,etc.)5.6Finally,thistestmethodcanbeavaluableteachingtoolforphysicsandtribologystudents.Theequipmentissimple,lowcostandstudentproof.Itcanbeusedtodemonstratetheconceptofrollingfrictionandthefactorsthataffectit.1.1Thistestmethodcoverstheuseofanangledlaunchramptoinitiaterollingofasphereornearlysphericalshapeonaflathorizontalsurfacetodeterminetherollingfrictioncharacteristicsofagivensphericalshapeonagivensurface.1.1.1Steelballsonasurfaceplatewereusedininterlaboratorytests(seeAppendixX1).Golfballsonagreen,soccerandlacrosseballsonplayingsurfaces,b......
【中国标准分类号】:J04
【国际标准分类号】:17_040_20
【页数】:9P.;A4
【正文语种】:英语
【英文标准名称】:Specificationforsteelspringwashersforgeneralengineeringandautomobilepurposes
【原文标准名称】:一般工程与汽车用钢弹簧垫圈规范
【标准号】:BS1802-1951
【标准状态】:现行
【国别】:英国
【发布日期】:1951-11-26
【实施或试行日期】:1951-11-26
【发布单位】:英国标准学会(BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:直径;机械试验;机械工程;间隙;英制;弹簧垫圈;量值;厚度;垫圈;尺寸;螺旋面形;道路车辆零部件;宽度;钢
【英文主题词】:width;mechanicaltesting;imperialsystem;dimensions;roadvehiclecomponents;washers;clearances;size;springwashers;thickness;steels;helicalshape;mechanicalengineering;diameter
【摘要】:Dimensions,materials,heattreatment,testing.'Lock'washersnotincluded.Notforaircraftindustry.
【中国标准分类号】:J13
【国际标准分类号】:43_020;21_060_30
【页数】:12P;A4
【正文语种】:英语