基本信息
| 标准名称： | 铝土矿石化学分析方法 第6部分 二氧化钛含量的测定 二安替吡啉甲烷光度法 |
| 英文名称： | Methods for chemical analysis of bauxite Part 6:Determination of titanium dioxide content Diantipyrylmethane photometric method |
| 中标分类： |
建材 >>
炭素材料 >>
炭素材料 |
| ICS分类： |
化工技术 >>
化工产品 >>
铝生产用材料
|
| 替代情况： | 替代YS/T 575.6-2006 |
| 发布部门： | 国家发展和改革委员会 |
| 发布日期： | 2007-11-14 |
| 实施日期： | 2008-05-01 |
| 首发日期： | |
| 作废日期： | |
| 提出单位： | 全国有色金属标准化技术委员会 |
| 归口单位： | 全国有色金属标准化技术委员会 |
| 起草单位： | 中国铝业郑州研究院 |
| 起草人： | 张炜华、石磊、邓平 |
| 出版社： | 中国标准出版社 |
| 出版日期： | 2008-04-01 |
| 页数： | 平装16开/页数：7/字数：9千字 |
| 书号： | 155066·2-18566 |
适用范围
本标准规定了铝土矿中二氧化钛含量的测定方法。本标准适用于铝土矿石中二氧化钛含量的测定。
前言
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目录
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引用标准
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所属分类： 建材 炭素材料 炭素材料 化工技术 化工产品 铝生产用材料
【英文标准名称】:Fireresistancetests-Guidanceontheapplicationandextensionofresults
【原文标准名称】:耐火试验试验结果应用和推广指南
【标准号】:ISO/TR12470-1998
【标准状态】:现行
【国别】:国际
【发布日期】:1998-07
【实施或试行日期】:
【发布单位】:国际标准化组织(ISO)
【起草单位】:ISO/TC92
【标准类型】:()
【标准水平】:()
【中文主题词】:火灾危险;耐火性;试验结果;指导手册;电工产品;着火危险试验;试验;电气工程
【英文主题词】:Electricalengineering;Electrotechnicalproducts;Firehazardtest;Fireresistance;Firerisks;Guidebooks;Testresults;Testing
【摘要】:Directandextendedapplicationsoftestresultsarethetwopossiblewaystoensurethatamodifiedelementwillhaveagoodpossibilityofobtainingthesamefireratingasthatoftheoriginaltestedspecimen.Inbothcasestheseapplicationsreferonlytothefireratingthatthebuildingelementcanexpecttoreachifitweretobetestedinafurnaceaccordingtothestandardfireusedforthereferencetest.Foreachtypeofelementofconstruction,theapplicationoftestresultswillbeconsideredundertwosub-headings.a)Directapplication:thissectionidentifiesthemodificationsthatcanbemadetothedesignofthetestedelementwithoutreducingitsfirerating.Thesepossiblemodificationsarebasedonobviousknowledgeanddonotneedfurtherevaluation.Ineverycaseitis,atleast,assumedthatthebasicmaterialsusedforthetestedsamplewillnotbechanged.Theresultsobtainedfromtestsperformedusingstandardconfigurationsarevalidforthefieldofapplicationderivedfromthatconfiguration,regardlessofanyspecificadvicegiveninthefollowingchapters.b)Extendedapplication:thiswillrequireineverycaseanassessmentbyafireexperteitherindevelopingrulesofapplicationorevaluatingtheresultsoffireengineeringcalculationsormakingajudgement.Ineverycaseitwillbetakenintoconsiderationthatextendedapplicationmaytakeintoaccountthedifferencebetweentheresultoftheoriginaltestandthefireresistancerequiredfortheuntestedelement.Ajudgementistheresultofaqualitativeprocess,normallycarriedoutbyexperts.Judgementsareusedtojustifyachangeofdesignormethodofconstructionwhichmayuse,forexample,empiricaldataderivedfromtests,establishedphysicalproperties,hotandcoldstatecalculations,aknowledgeoffireexposure,firebehaviourandresponseoftheconstruction,eitherinisolationorincombination.1)Rulesofapplication:thesewouldbeapplieduniversallyevenbypersonswithoutexpertiseinfireaspartofthe"fieldofapplication"ofthetestresultforagivenfamilyofproducts.Theserulesmayrequirecoldstatecalculation.Thequantificationoftheseruleswouldbeagreeduniversallybaseduponvalidatedexperiencerelatedtogenericconstructionsorcomponents.Thiscouldcoversizechanges,numberofjoints,sizeofglazingetc.ThroughoutthisTechnicalReporttheclausescoveringrulesfrequentlyexpresstheacceptablechangeintermsofun-quantifiedpercentagesindicatedbytheletter"X"andanappropriatesuffix.Thisallowsnationalcodeauthoritiestoinserttheirownacceptablelimitswhichwillrelatetotheirestablishedfiresafetyphilosophy.Authoritiesareencouragedtosupportthenecessaryresearchtowardsinternationallyharmonizedvalidatedvalue.2)Fireengineeringcalculations:thesewouldbeusedbyanexpertingivingadvicebutwillmainlyberestrictedtothepropertiesindicatedbelow:·non-loadedelements:thiswouldberestrictedtothecalculationoftemperatureriseanddeflectionof"simple"componentsandelements;·loadedelement:inadditiontothepropertiespermittedfornon-loadedelements,calculationatelevatedtemperaturecouldbepermittedfortheload-bearingcapacityforwell-documentedmaterials(steel,concrete,etc.)andforstaticallydeterminedelements.Ineverycasethecalculationmodelsusedbytheexperts,whatevertheirsource(purchasedfromsoftwaremanufacturersordevelopedintheinstitution)havetobefullyvalidatedbycomparisonwithexistingtestresultsandbysensitivityanalysisofthevariousparameters.3)judgements:foratestresulttobeextrapolatedtocoverchangesoutsidethoseforwhichcalculationsorwrittenrulesareapplicable,theresultmaystillapplysubjecttosomeexpertjudgementbeingmade.Thesectiononjudgementshighlightsthemattersthatneedtobeconsideredandtobeexplainedbythebod
【中国标准分类号】:C80
【国际标准分类号】:13_220_50
【页数】:59P;A4
【正文语种】:英语