ISO 3839-1978 石油馏出物和商业脂族烯烃.溴值的测定.电测法
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来源:标准资料网
【英文标准名称】:Petroleumdistillatesandcommercialaliphaticolefins;Determinationofbrominenumber;Electrometricmethod
【原文标准名称】:石油馏出物和商业脂族烯烃.溴值的测定.电测法
【标准号】:ISO3839-1978
【标准状态】:作废
【国别】:国际
【发布日期】:1978-04
【实施或试行日期】:
【发布单位】:国际标准化组织(ISO)
【起草单位】:ISO/TC28
【标准类型】:()
【标准水平】:()
【中文主题词】:化学分析;石油产品;烯烃化合物;溴值;烯烃;量电分析;蒸馏;连接;电解分析法;化学分析和试验
【英文主题词】:electrometricanalysis;distillation;alkenes;chemicalanalysis;alkenecompouds;brominenumber;petroleumproducts;electro-analyticalmethods;connections;chemicalanalysisandtesting
【摘要】:
【中国标准分类号】:G15;E30
【国际标准分类号】:5740;0433
【页数】:12P;A4
【正文语种】:英语
【英文标准名称】:Maintenanceanduseguidefortriarylphosphateesterturbinecontrolfluids.
【原文标准名称】:涡轮机用磷酸盐酯调节流体的维护和使用指南
【标准号】:NFC27-233-1990
【标准状态】:现行
【国别】:法国
【发布日期】:1990-03-01
【实施或试行日期】:1990-03-20
【发布单位】:法国标准化协会(AFNOR)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:电气工程;涡轮机;液体;维修;控制器;监督(认可);调速器用液体;三芳基磷酸脂;液压液
【英文主题词】:Controllers;Electricalengineering;Governorfluids;Hydraulicfluids;Liquids;Maintenance;Surveillance(approval);Triarylphosphateesters;Turbines
【摘要】:
【中国标准分类号】:K54;G17
【国际标准分类号】:27_040;75_100
【页数】:22P;A4
【正文语种】:其他
【英文标准名称】:Plastics-Determinationoffracturetoughness(GicandKic)atmoderatelyhighloadingrates(1m/s)
【原文标准名称】:在适度高负载率(1m/s)下(GDOWNiDOWNc和KDOWNiDOWNc)抗断裂韧性的测定
【标准号】:BSISO17281-2002
【标准状态】:现行
【国别】:英国
【发布日期】:2002-11-22
【实施或试行日期】:2002-11-22
【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】:断裂试验;测定;机械试验;裂纹;裂开;塑料;断裂韧性;抗断裂强度;机械处理;试样制备;试验
【英文主题词】:Breakingstrength;Breakingtests;Cracktoughness;Cracking;Determination;Flaws;Fracturetoughness;Mechanicaltesting;Mechanicaltreatment;Plastics;Specimenpreparation;Testing
【摘要】:ThisInternationalStandardprovidesguidelinesfordeterminingthefracturetoughnessofplasticsinthecrack-openingmode(ModeI)byalinearelasticfracturemechanics(LEMF)approach,atload-pointdisplacementratesofupto1m/s.ItsupplementsISO13586soastoextenditsapplicabilitytoloadingratessomewhathigherthanisthecaseinthescopeofthelatterInternationalStandard.Fracturetestingathighloadingratespresentsspecialproblemsbecauseofthepresenceofdynamiceffects:vibrationsinthetestsystemproducingoscillationsintherecordedquantities,andinertialloadsproducingforcesonthetestspecimendifferentfromtheforcessensedbythetestfixture.Theseeffectsneedeithertobecontrolledand,ifpossible,reducedbyappropriateaction,orelsetobetakenintoaccountthroughproperanalysisofthemeasureddata.Therelativeimportanceofsucheffectsincreaseswithincreasingtestingrate(decreasingtestduration).Atspeedsoflessthan0,1m/s(loadingtimesofgreaterthan10ms)thedynamiceffectsmaybenegligibleandthetestingproceduregiveninISO13586canbeappliedasitstands.Atspeedsapproaching1m/s(loadingtimesoftheorderof1ms)thedynamiceffectsmaybecomesignificantbutstillcontrollable.TheproceduregiveninISO13586canstillbeusedthoughwithsomeprovisosandthesearecontemplatedinthisInternationalStandard.Atspeedsofseveralmeterspersecondandhigher(loadingtimesmarkedlyshorterthan1ms)thedynamiceffectsbecomedominant,anddifferentapproachestofracturetoughnessdeterminationarerequired,whichareoutsidethescopeofthisInternationalStandard.Thegeneralprinciples,methodsandrulesgiveninISO13586forfracturetestingatlowloadingratesremainvalidandshouldbefollowedexceptwhereexpresslystatedotherwiseinthisInternationalStandard.ThemethodsaresuitableforusewiththesamerangeofmaterialsascoveredbyISO13586.Althoughthedynamiceffectsoccurringathighloadingratesarelargelydependentonthematerialtestedaswellasonthetestequipmentandtestgeometryused,theguidelinesgivenherearevalidingeneral,irrespectiveoftestequipment,testgeometryandmaterialtested.Thesamerestrictionsastolinearityoftheload-displacementdiagram,specimensizeandnotchtipsharpnessapplyasforISO13586.Thelinearityrequirementsreferredtoin6.1ofISO13586:2000,areverifiedhereonthe"smoothed"load-displacementcurve,tobeobtainedasspecifiedin8.1.
【中国标准分类号】:G31
【国际标准分类号】:83_080_01
【页数】:32P.;A4
【正文语种】:英语
