BS EN 10258-1997 冷轧不锈钢窄带材和剪切长度.尺寸和形状公差
时间:2024-05-10 23:22:14 来源: 标准资料网 作者：标准资料网 阅读：9488
【英文标准名称】:Cold-rolledstainlesssteelnarrowstripandcutlengths-Tolerancesondimensionsandshape
【原文标准名称】:冷轧不锈钢窄带材和剪切长度.尺寸和形状公差
【标准号】:BSEN10258-1997
【标准状态】:作废
【国别】:英国
【发布日期】:1997-09-15
【实施或试行日期】:1997-09-15
【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】:尺寸公差;尺寸;耐热材料;形状公差;带材;尺寸测量;平整度;名称与符号;不锈钢;直径;冷加工;滚轧;宽度;厚度
【英文主题词】:
【摘要】:ThisEuropeanStandardappliestocold-rolledstainless,heatresistingandcreepresistingsteelflatproductsinthicknessesuptoandincluding3,0mmandrolledwidthsoflessthan600mmdeliveredas:a)narrowstrip(coilswitharolledwidth<600mm),b)slitcold-rollednarrowstrip,c)cutlengthsobtainedfromslitcold-rollednarrowstriporcold-rollednarrowstrip.Itdoesnotapplytocold-rolledstainless,heatresistingandcreepresistingsteelwidestripandplate/sheet(rolledwidth≥600mm,seeEN10259),ortocold-rolledproductsforwhichthereisaspecificstandard.
【中国标准分类号】:H46
【国际标准分类号】:77_140_20;77_140_50
【页数】:14P;A4
【正文语种】:英语
【英文标准名称】:Informationtechnology-Opensystemsinterconnection-Thedirectory-Authenticationframework
【原文标准名称】:信息技术.开放式系统互连.人名地址录.鉴定框架
【标准号】:BSISO/IEC9594-8-1995
【标准状态】:作废
【国别】:英国
【发布日期】:1997-02-15
【实施或试行日期】:1997-02-15
【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】:应用层(开放系统互连);验证;信息交流;计算机网络;数据传送;数据传输;开放系统互连;数据存储保护;情报系统;密码;人名地址录;数据处理;识别方法
【英文主题词】:Applicationlayer;Authentication;Communicationservice;Dataprocessing;Directories;Informationinterchange;Informationtechnology;Networkinterconnection;Opensystemsinterconnection;OSI
【摘要】:ThisRecommendation|InternationalStandard:-specifiestheformofauthenticationinformationheldbytheDirectory;-describeshowauthenticationinformationmaybeobtainedfromtheDirectory;-statestheassumptionsmadeabouthowauthenticationinformationisformedandplacedintheDirectory;-definesthreewaysinwhichapplicationsmayusethisauthenticationinformationtoperformauthenticationanddescribeshowothersecurityservicesmaybesupportedbyauthentication.ThisRecommendation|InternationalStandarddescribestwolevelsofauthentication:simpleauthentication,usingapasswordasaverificationofclaimedidentity;andstrongauthentication,involvingcredentialsformedusingcryptographictechniques.Whilesimpleauthenticationofferssomelimitedprotectionagainstunauthorizedaccess,onlystrongauthenticationshouldbeusedasthebasisforprovidingsecureservices.Itisnotintendedtoestablishthisasageneralframeworkforauthentication,butitcanbeofgeneraluseforapplicationswhichconsiderthesetechniquesadequate.Authentication(andothersecurityservices)canonlybeprovidedwithinthecontextofadefinedsecuritypolicy.Itisamatterforusersofanapplicationtodefinetheirownsecuritypolicywhichmaybeconstrainedbytheservicesprovidedbyastandard.ItisamatterforstandardsdefiningapplicationswhichusetheauthenticationframeworktospecifytheprotocolexchangeswhichneedtobeperformedinordertoachieveauthenticationbasedupontheauthenticationinformationobtainedfromtheDirectory.TheprotocolusedbyapplicationstoobtaincredentialsfromtheDirectoryistheDirectoryAccessProtocol(DAP),specifiedinITU-TRecommendationX.519|ISO/IEC9594-5.ThestrongauthenticationmethodspecifiedinthisRecommendation|InternationalStandardisbaseduponpublic-keycryptosystems.ItisamajoradvantageofsuchsystemsthatusercertificatesmaybeheldwithintheDirectoryasattributes,andmaybefreelycommunicatedwithintheDirectorySystemandobtainedbyusersoftheDirectoryinthesamemannerasotherDirectoryinformation.Theusercertificatesareassumedtobeformedby"off-line"means,andplacedintheDirectorybytheircreator.Thegenerationofusercertificatesisperformedbysomeoff-lineCertificationAuthoritywhichiscompletelyseparatefromtheDSAsintheDirectory.Inparticular,nospecialrequirementsareplaceduponDirectoryproviderstostoreorcommunicateusercertificatesinasecuremanner.Abriefintroductiontopublic-keycryptographycanbefoundinAnnexC.Ingeneral,theauthenticationframeworkisnotdependentontheuseofaparticularcryptographicalgorithm,providedithasthepropertiesdescribedin7.1.Potentiallyanumberofdifferentalgorithmsmaybeused.However,twouserswishingtoauthenticateshallsupportthesamecryptographicalgorithmforauthenticationtobeperformedcorrectly.Thus,withinthecontextofasetofrelatedapplications,thechoiceofasinglealgorithmwillserveto.maximizethecommunityofusersabletoauthenticateandcommunicatesecurely.OneexampleofapublickeycryptographicalgorithmcanbefoundinAnnexD.Similarly,twouserswishingtoauthenticateshallsupportthesamehashfunction[see3.3f)](usedinformingcredentialsandauthenticationtokens).Again,inprinciple,anumberofalternativehashfunctionscouldbeused,atthecostofnarrowingthecommunitiesofusersabletoauthenticate.AbriefintroductiontohashfunctionscanbefoundinAnnexE.
【中国标准分类号】:L79
【国际标准分类号】:35_100_01;35_100_70
【页数】:44P.;A4
【正文语种】:英语
【英文标准名称】:TestMethodforSealDurabilityofSealedInsulatingGlassUnits(04.11)
【原文标准名称】:密封绝缘玻璃部件的密封持久性的试验方法
【标准号】:ANSI/ASTME773-1988
【标准状态】:作废
【国别】:美国
【发布日期】:1988
【实施或试行日期】:
【发布单位】:美国国家标准学会(ANSI)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:衬垫;门窗玻璃;试验
【英文主题词】:testing;gaskets;glazing
【摘要】:
【中国标准分类号】:Q24
【国际标准分类号】:91_060_50
【页数】:
【正文语种】:英语