基本信息
标准名称: | 地球化学样品中贵金属分析方法总则及一般规定 |
英文名称: | Methods for analysis of noble metals in geochemcial samples-General rules and regulations |
中标分类: |
矿业 >>
有色金属矿 >>
贵金属矿 |
ICS分类: |
采矿和矿产品 >>
金属矿
|
替代情况: | 被GB/T 17418.1-2010代替 |
发布部门: | 国家质量技术监督局 |
发布日期: | 1998-06-17 |
实施日期: | 1999-01-01 |
首发日期: | 1998-06-17 |
作废日期: | 2011-02-01 |
主管部门: | 国土资源部 |
提出单位: | 中华人民共和国地质矿产部 |
归口单位: | 地质矿产部岩矿测试技术研究所 |
起草单位: | 地质矿产部岩矿测试技术研究所 |
起草人: | 颜茂弘、曾法刚、林玉南、沈振兴 |
出版社: | 中国标准出版社 |
出版日期: | 1900-01-01 |
页数: | 5页 |
适用范围
本标准规定了贵金属分析方法总则及一般规定。
本标准适用于岩石及地球化学地质物料中贵金属元素的测定。
本标准只适用于经过严格加工粉碎、混合均匀的样品。
前言
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目录
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引用标准
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所属分类: 矿业 有色金属矿 贵金属矿 采矿和矿产品 金属矿
【英文标准名称】:Nuclearpowerplants-Instrumentationandcontrolsystemsimportanttosafety-Requirementsforcopingwithcommoncausefailure(CCF)
【原文标准名称】:核电站.仪器和控制设备对安全的重要性.应对共因失效(CCF)的要求
【标准号】:IEC62340-2007
【标准状态】:现行
【国别】:国际
【发布日期】:2007-12
【实施或试行日期】:
【发布单位】:国际电工委员会(IX-IEC)
【起草单位】:IEC/SC45A
【标准类型】:()
【标准水平】:()
【中文主题词】:原因;控制设备;控制工艺学;数据处理;缺陷;定义;电子数据处理;电气工程;失败;故障;事故;信息处理;主计算机;核电厂;核反应堆;核安全;核技术;反应堆防护;反应堆防护系统;反应堆安全;反应堆工艺学;可靠度;安全;安全装置;安全工程;安全系统;规范(验收)
【英文主题词】:Causes;Controlequipment;Controltechnology;Dataprocessing;Defects;Definitions;EDP;Electricalengineering;Fail;Failure;Incidents;Informationprocessing;Main-framecomputers;Nuclearpowerplants;Nuclearreactors;Nuclearsafety;Nucleartechnology;Reactorprotection;Reactorprotectionsystems;Reactorsafety;Reactortechnology;Reliability;Safety;Safetydevices;Safetyengineering;Safetysystems;Specification(approval)
【摘要】:I&Csystemsimportanttosafetymaybedesignedusingconventionalhard-wiredequipment,computer-basedequipmentorbyusingacombinationofbothtypesofequipment.ThisInternationalStandardprovidesrequirementsandrecommendations1fortheoverallarchitectureofI&Csystems,whichmaycontaineitherorbothtechnologies.Thescopeofthisstandardis:a)togiverequirementsrelatedtotheavoidanceofCCFofI&CsystemsthatperformcategoryAfunctions;b)toadditionallyrequiretheimplementationofindependentI&CsystemstoovercomeCCF,whilethelikelihoodofCCFisreducedbystrictlyapplyingtheoverallsafetyprinciplesofIECSC45A(notablyIEC61226,IEC61513,IEC60880andIEC60709);c)togiveanoverviewofthecompletescopeofrequirementsrelevanttoCCF,butnottooverlapwithfieldsalreadyaddressedinotherstandards.Thesearereferenced.Thisstandardemphasisestheneedforthecompleteandprecisespecificationofthesafetyfunctions,basedontheanalysisofdesignbasisaccidentsandconsiderationofthemainplantsafetygoals.Thisspecificationisthepre-requisiteforgeneratingacomprehensivesetofdetailedrequirementsforthedesignofI&CsystemstoovercomeCCF.ThisstandardprovidesprinciplesandrequirementstoovercomeCCFbymeanswhichensureindependence2:a)betweenI&CsystemsperformingdiversesafetyfunctionswithincategoryAwhichcontributetothesamesafetytarget;b)betweenI&Csystemsperformingdifferentfunctionsfromdifferentcategoriesife.g.acategoryBfunctionisclaimedasback-upofacategoryAfunctionand;c)betweenredundantchannelsofthesameI&Csystem.TheimplementationoftheserequirementsleadstovarioustypesofdefenceagainstinitiatingCCFevents.MeanstoachieveprotectionagainstCCFarediscussedinthisstandardinrelationto:a)susceptibilitytointernalplanthazardsandexternalhazards;b)propagationofphysicaleffectsinthehardware(e.g.highvoltages);andc)avoidanceofspecificfaultsandvulnerabilitieswithintheI&Csystemsnotably:1)propagationoffunctionalfailureinI&CsystemsorbetweendifferentI&Csystems(e.g.bymeansofcommunication,faultorerroronsharedresources),2)existenceofcommonfaultsintroducedduringdesignorduringsystemoperation(e.g.maintenanceinducedfaults),3)insufficientsystemvalidationsothatthesystembehaviourinresponsetoinputsignaltransientsdoesnotadequatelycorrespondtotheintendedsafetyfunctions,4)insufficientqualificationoftherequiredpropertiesofhardware,insufficientverificationofsoftwarecomponents,orinsufficientverificationofcompatibilitybetweenreplacedandexistingsystemcomponents.
【中国标准分类号】:F09;F69
【国际标准分类号】:27_120_20
【页数】:50P;A4
【正文语种】:英语