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BS 8444-3-1996 风险管理.技术系统风险分析指南

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【英文标准名称】:Riskmanagement-Guidetoriskanalysisoftechnologicalsystems
【原文标准名称】:风险管理.技术系统风险分析指南
【标准号】:BS8444-3-1996
【标准状态】:现行
【国别】:英国
【发布日期】:1996-08-15
【实施或试行日期】:1996-08-15
【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】:缺陷与故障;概率论;系统分析;逻辑图;文献索引;估计;危害;系统论
【英文主题词】:Electricalengineering;Qualityassurance;Reabilityrelatedprogram;Reliability;Reliabilitymanagement;Riskanalysis
【摘要】:ThissectionofIEC300-3providesguidelinesforselectingandimplementingriskanalysistechniques,primarilyforriskassessmentoftechnologicalsystems.Theobjectiveofthisstandardistoensurequalityandconsistencyintheplanningandexecutionofriskanalysesandthepresentationofresultsandconclusions.Thisstandardcontainsguidelinesforriskanalysis,presentedasfollows:riskanalysisconcepts,riskanalysisprocess,riskanalysismethods.ThissectionofIEC300-3isapplicableas:-aguidelineforplanning,executinganddocumentingriskanalyses;-abasisforspecifyingqualityrequirementsforriskanalysis(thiscanbeparticularlyimportantwhendealingwithexternalconsultants);-abasisforevaluatingriskanalysesaftercompletion.Riskanalysiscarriedouttothisstandardprovidesaninputtoriskmanagementactivities(seefigure1).NOTE-Thisstandarddoesnotprovidespecificcriteriaforidentifyingtheneedforriskanalysis,orspecifythetypeofriskanalysismethodthatisrequiredforagivensituation.Nordoesitofferdetailedguidelinesforspecifichazardsorincludeinsurance,actuarial,legal,orfinancialinterests.
【中国标准分类号】:C75
【国际标准分类号】:03_120_10;31_020
【页数】:38P;A4
【正文语种】:英语


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【英文标准名称】:Thermoplasticsvalves-Pressuretestmethodsandrequirements-Part2:TestconditionsandbasicrequirementsforPE,PP,PVC-UandPVDFvalves
【原文标准名称】:热塑性塑料阀门压力试验方法和要求第2部分:聚乙烯、聚丙烯、硬聚氯乙烯和聚偏氯乙烯阀门的试验条件和基本要求
【标准号】:ISO9393-2-1997
【标准状态】:作废
【国别】:国际
【发布日期】:1997-04
【实施或试行日期】:
【发布单位】:国际标准化组织(ISO)
【起草单位】:ISO/TC138
【标准类型】:()
【标准水平】:()
【中文主题词】:塑料件;未增塑聚氯乙烯;聚丙烯;聚丙烯;试验条件;聚氯乙烯;聚乙烯;聚乙烯;阀门;压力试验;试验;聚偏氟乙烯;规范(验收)
【英文主题词】:pressuretests;polyvinylidenefluoride;specification(approval);polypropylene;testingconditions;pe;pp;polyethylene;valves;pvc-u;polyvinylchloride;testing;partsmadeofplastic
【摘要】:
【中国标准分类号】:J16
【国际标准分类号】:83_140_30;23_060_01
【页数】:8P;A4
【正文语种】:英语


【英文标准名称】:Naturalgas-Calculationofcalorificvalues,density,relativedensityandWobbeindexfromcomposition
【原文标准名称】:天燃气.热值、密度、相对密度和由化合物推导的沃泊指数的计算
【标准号】:BS7859-1996
【标准状态】:作废
【国别】:英国
【发布日期】:1996-03-15
【实施或试行日期】:1996-03-15
【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】:准确度;估计;误差修正;再现性;燃料;相对密度;矿物燃料;天然气;密度;文献索引;热值;气体燃料;数学计算
【英文主题词】:Calorificvalue;Calorificvalues;Chemicalcomposition;Definition;Definitions;Density;Mathematicalcalculations;Methodsofcalculation;Naturalgas;Wobbeindex
【摘要】:ThisInternationalStandardspecifiesmethodsforthecalculationofthesuperiorcalorificvalue,inferiorcalorificvalue,density,relativedensityandWobbeindexofdrynaturalgases,naturalgassubstitutesandothercombustiblegaseousfuels,whenthecompo-sitionofthegasbymolefractionisknown.Themethodsprovideameansofcalculatingtheproper-tiesofthegasmixtureatcommonlyusedmetricref-erenceconditions.Themethodsofcalculationrequirevaluesforvariousphysicalpropertiesofthepurecomponents;thesevaluesareprovidedintablesandtheirsourcesareidentified.Methodsaregivenforestimatingtheprecisionofcalculatedproperties.Themethodsofcalculationofthevaluesofpropertiesoneitheramolarormassbasisareapplicabletoanydrynaturalgas,naturalgassubstituteorothercombustiblefuelwhichisnormallygaseous.Forthecalculationofthevaluesofpropertiesonavolumetricbasis,themethodsarerestrictedtogasesconsistingpreponderantlyofmethane(notlessthan0,5molefraction).ExamplesofcalculationsaregiveninannexDfortherecommendedmethodsofcalculation.NOTES1ThesymbolsusedinthisInternationalStandard,to-getherwiththeirmeanings,aregiveninannexA.2Thequalifiers"higher","upper","total"and"gross"are,forthepurposesofthisInternationalStandard,syn-onymouswith"superior";likewise,"lower"and"net"aresynonymouswith"inferior".Theterm"heatingvalue"issynonymouswith"calorificvalue";"specificgravity"issynonymouswith"relativedensity";"Wobbenumber"issynonymouswith"Wobbeindex";"compressibilityfactor"issynonymouswith"compressionfactor".3Ifthecompositionofthegasisknownbyvolumefrac-tionsthesemustbeconvertedtomolefractions(seeannexC).Note,however,thatthederivedmolefractionswillhaveuncertaintiesgreaterthanthoseoftheoriginalvolumefractions.4ForthepurposesofthisInternationalStandard,thesumofthemolefractionsusedmustbeunitytothenearest0,0001,andallcomponentswithmolefractionsgreaterthan0,00005mustbeaccountedfor.5Forthecalorificvaluecalculatedonavolumetricbasis,therearelimitationsontheamountsofcomponentsotherthanmethanewhichmaybepresent.Itisimpossibletobedefinitiveonthismatter,butthefollowingguidelinesmaybeuseful:N2shouldnotbepresentinamountsexceeding0,3molefraction;CO2andC2H6shouldeachnotexceed0,15molefrac-tion;noothercomponentshouldexceed0,05molefraction.Giventheselimits,theexpectedtruenessofthecalculationiswithin0,1%.6Theeffectsofwatervapouronthecalorificvalue,eitherdirectlymeasuredorcalculated,arediscussedinannexF.7Forthemethodsofcalculationdescribedtobevalid,thegasmustbeaboveitshydrocarbondew-pointatthepre-scribedreferenceconditions.8Thevaluesofbasicphysicalpropertydataaresubjecttorevisionasmoreaccuratevaluesbecomeavailablefromauthoritativesources.
【中国标准分类号】:E24
【国际标准分类号】:75_060
【页数】:56P;A4
【正文语种】:英语