ASTM A 517/A 517M-2006 压力容器用经回火与淬火的高强度合金钢板

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【英文标准名称】:StandardSpecificationforPressureVesselPlates,AlloySteel,High-Strength,QuenchedandTempered
【原文标准名称】:压力容器用经回火与淬火的高强度合金钢板
【标准号】:ASTMA517/A517M-2006
【标准状态】:现行
【国别】:美国
【发布日期】:2006
【实施或试行日期】:
【发布单位】:美国材料与试验协会(ASTM)
【起草单位】:ASTM
【标准类型】:()
【标准水平】:()
【中文主题词】:合金钢;高抗拉;板;压力容器;钢
【英文主题词】:Alloysteels;Hightensile;Plates;Pressurevessels;Steels
【摘要】:
【中国标准分类号】:H48
【国际标准分类号】:77_140_30
【页数】:4P;A4
【正文语种】:英语


【英文标准名称】:Informationtechnology-Securitytechniques-Keymanagement-Part3:Mechanismsusingasymmetrictechniques
【原文标准名称】:信息技术安全技术密钥管理第3部分:用非对称技术的机制
【标准号】:ISO/IEC11770-3-1999
【标准状态】:作废
【国别】:国际
【发布日期】:1999-11
【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
【标准类型】:()
【标准水平】:()
【中文主题词】:信息交换;数据保护;代号系统;安全工程;校验;数据传输;算法;定义;信息技术;数据处理
【英文主题词】:Algorithms;Authentication;Codesystems;Dataprocessing;Dataprotection;Datatransmission;Definition;Definitions;Informationinterchange;Informationtechnology;Safetyengineering
【摘要】:ThispartofISO/IEC11770defineskeymanagementmechanismsbasedonasymmetriccryptographictech-niques.Itspecificallyaddressestheuseofasymmetrictechniquestoachievethefollowinggoals:1.EstablishasharedsecretkeyforasymmetriccryptographictechniquebetweentwoentitiesAandBbykeyagreement.Inasecretkeyagreementmechanismthesecretkeyisthere-sultofadataexchangebetweenthetwoenti-tiesAandB.Neitherofthemcanprede-terminethevalueofthesharedsecretkey.2.EstablishasharedsecretkeyforasymmetriccryptographictechniquebetweentwoentitiesAandBbykeytransport.InasecretkeytransportmechanismthesecretkeyischosenbyoneentityAandistransferredtoanotherentityB,suitablyprotectedbyasymmetrictechniques.3.Makeanentity'spublickeyavailabletootherentitiesbykeytransport.Inapublickeytransportmechanism,thepublickeyofanen-tityAmustbetransferredtootherentitiesinanauthenticatedway,butnotrequiringse-crecy.SomeofthemechanismsofthispartofISO/IEC11770arebasedonthecorrespondingauthenticationmecha-nismsinISO/IEC9798-3.ThispartofISO/IEC11770doesnotcoveraspectsofkeymanagementsuchas-keylifecyclemanagement,-mechanismstogenerateorvalidateasymmet-rickeypairs,-mechanismstostore,archive,delete,destroy,etc.keys.WhilethispartofISO/IEC11770doesnotexplicitlycoverthedistributionofanentity'sprivatekey(ofanasymmetrickeypair)fromatrustedthirdpartytoarequestingentity,thekeytransportmechanismsde-scribedcanbeusedtoachievethis.ThispartofISO/IEC11770doesnotcovertheimple-mentationsofthetransformationsusedinthekeyman-agementmechanisms.NOTE-Toachieveauthenticityofkeymanage-mentmessagesitispossibletomakeprovisionsforauthenticitywithinthekeyestablishmentprotocolortouseapublickeysignaturesystemtosignthekeyexchangemessages.
【中国标准分类号】:L04
【国际标准分类号】:35_040
【页数】:35P.;A4
【正文语种】:英语


【英文标准名称】:Foodstuffs-Determinationofsulfite-Part2:Enzymaticmethod;GermanversionEN1988-2:1998
【原文标准名称】:食品.亚硫酸盐的测定.第2部分:酶催化法
【标准号】:EN1988-2-1998
【标准状态】:现行
【国别】:
【发布日期】:1998-05
【实施或试行日期】:
【发布单位】:欧洲标准学会(EN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:亚硫酸盐;分析方法;分析;含量;食品检验;食品检验;亚硫酸;二氧化硫;食品保藏;食品防腐剂;试验;酶测定;化学分析和试验;掺和剂;食品添加剂;食品;含量测定;酶催化法
【英文主题词】:Additives;Analysis;Chemicalanalysisandtesting;Content;Determinationofcontent;Enzymaticmethods;Enzymeassay;Foodadditives;Foodinspection;Foodpreservation;Foodpreservatives;Foodpreservatives(foodproducts);Foodproducts;Foodtesting;Methodsofanalysis;Sulphitecontent;Sulphites;Sulphurdioxide;Sulphurousacid;Testing
【摘要】:
【中国标准分类号】:X04
【国际标准分类号】:67_050
【页数】:8P.;A4
【正文语种】:英语