【英文标准名称】:Aluminiumandaluminiumalloys-Colddrawnrod/barandtube-Portholetubes,tolerancesondimensionsandform
【原文标准名称】:铝和铝合金.冷拉杆材/棒材和管材.出水孔管材尺寸和形状公差
【标准号】:BSEN754-8-2008
【标准状态】:现行
【国别】:英国
【发布日期】:2008-04-30
【实施或试行日期】:2008-04-30
【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】:铝;铝合金;铝管;棒材;圆管;凹形;凸形;尺寸;拉拔;偏心率;挤压的;挤压成型;形状公差;六角(边)形;长度;极限偏差;材料;测量;测量技术;有色金属合金;有色金属;八角形;管;杆材;矩形管;矩形性;半成品;正方形管;平直度;公差(测量);工具;加捻;壁厚
【英文主题词】:Aluminium;Aluminiumalloys;Aluminiumpipes;Bars(materials);Circulartubes;Concave;Convex;Dimensions;Drawn;Eccentricity;Extruded;Extrusion;Formtolerances;Hexagon;Length;Limitdeviations;Materials;Measurement;Measuringtechniques;Non-ferrousalloys;Non-ferrousmetals;Octagons;Pipes;Poles;Rectangulartubes;Rectangularity;Semi-finishedproducts;Squaretubes;Straightness;Tolerances(measurement);Tools;Twisting;Wallthicknesses
【摘要】:Thisdocumentspecifiesthetolerancesondimensionsandformforaluminiumandaluminiumalloycolddrawnportholetubeswithanoutsidediameter(OD)from3mmto350mm(roundtube,seeFigure1)orwithacrosssectioncontainedwithinacircumscribingcircle(CD)from8mmto300mm(otherthanroundtube,seeFigure2),suppliedinstraightlengths.Thisdocumentonlyappliestocolddrawntubeforgeneralengineeringapplicationsmadeinthefollowingalloys:?ENAW-1050A,ENAW-1200;?ENAW-3003,ENAW-3103;?ENAW-5005,ENAW-5005A,ENAW-5049,ENAW-5251,ENAW-5052;?ENAW-6012,ENAW-6060,ENAW-6061,ENAW-6262,ENAW-6262A;?ENAW-6063,ENAW-6063A,ENAW-6065,ENAW-6082;?ENAW-7020.ThetemperdesignationsusedinthispartareaccordingtoEN515.Thisdocumentonlyappliestotubeproducedbytheporthole/bridgemethodofextrusiononly(andthencolddrawntothefinaldimensions).Thisdocumentdoesnotapplyto:?colddrawntubesproducedbytheseamless,die/mandrelmethod(EN754-7),?tubesdeliveredincoils(EN13958),?coiledtubescuttolength(EN13958).Figure1—RoundtubeFigure2—Circumscribingcircleforotherthanroundtube
【中国标准分类号】:H61
【国际标准分类号】:77_150_10
【页数】:20P.;A4
【正文语种】:英语


【英文标准名称】:Informationtechnology-Securitytechniques-MethodologyforITsecurityevaluation
【原文标准名称】:信息技术.安全技术.IT安全评价的方法论
【标准号】:ISO/IEC18045-2008
【标准状态】:现行
【国别】:国际
【发布日期】:2008-08
【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/SC27
【标准类型】:()
【标准水平】:()
【中文主题词】:担保程序;数据交换;数据处理;数据保护;数据安全;定义;评估;信息交换;信息技术;方法学;性能;可靠性;安全
【英文主题词】:Assuranceprogrammes;Dataexchange;Dataprocessing;Dataprotection;Datasecurity;Definitions;Evaluations;Informationinterchange;Informationtechnology;Methodologies;Properties;Reliability;Safety
【摘要】:ThisInternationalStandardisacompaniondocumenttotheevaluationcriteriaforITsecuritydefinedinISO/IEC15408.ItdefinestheminimumactionstobeperformedbyanevaluatorinordertoconductanISO/IEC15408evaluation,usingthecriteriaandevaluationevidencedefinedinISO/IEC15408.ThisInternationalStandarddoesnotdefineevaluatoractionsforcertainhighassuranceISO/IEC15408components,wherethereisasyetnogenerallyagreedguidance.
【中国标准分类号】:L70;A90
【国际标准分类号】:35_040
【页数】:294P.;A4
【正文语种】:英语