ISO 2804-1996 线、棒或管材拉模硬质合金烧结片尺寸
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【英文标准名称】:Wire,barortubedrawingdies-As-sinteredpelletsofhardmetal(carbide)-Dimensions
【原文标准名称】:线、棒或管材拉模硬质合金烧结片尺寸
【标准号】:ISO2804-1996
【标准状态】:现行
【国别】:国际
【发布日期】:1996-12
【实施或试行日期】:
【发布单位】:国际标准化组织(ISO)
【起草单位】:ISO/TC29
【标准类型】:()
【标准水平】:()
【中文主题词】:工具;尺寸;芯;压延冲模;拉制;拉丝模;烧结产品
【英文主题词】:Cores;Dimensions;Drawingdies(presstools);Drawing(formingprocess);Sinteredproducts;Tools;Wire-drawingdies
【摘要】:Laysdownaseriesofoutsidediameters,arangeofboresizesandcertaininternaldimensionswiththeirtolerances,foras-sinteredpelletsofhardmetal,usedaswire,barandtubedrawingdies.
【中国标准分类号】:H72
【国际标准分类号】:25_120_20
【页数】:6P;A4
【正文语种】:英语
【英文标准名称】:Electromechanicalelementaryrelays-Part7:testandmeasurementprocedures.
【原文标准名称】:机电式初等继电器.第7部分:试验和测试方法
【标准号】:NFC45-250-7-2006
【标准状态】:现行
【国别】:法国
【发布日期】:2006-11-01
【实施或试行日期】:2006-11-20
【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】:
【英文主题词】:
【摘要】:
【中国标准分类号】:L25;K33
【国际标准分类号】:29_120_70
【页数】:92P;A4
【正文语种】:其他
【英文标准名称】:StandardTestMethodforMeasurementofHinderedPhenolicandAromaticAmineAntioxidantContentinNon-zincTurbineOilsbyLinearSweepVoltammetry
【原文标准名称】:用线性扫描伏安法测量无锌涡轮机油中受阻酚和芳香胺抗氧化剂含量的标准试验方法
【标准号】:ASTMD6971-2009
【标准状态】:现行
【国别】:美国
【发布日期】:2009
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:D02.09.0C
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:2,6-di-tert-butyl-4methylphenol;2,6-di-tert-butylphenol;alkylateddiphenylamine;aromaticamineantioxidant;hinderedphenolantioxidant;in-serviceoils;linearsweepvoltammetry;non-zincturbine
【摘要】:Thequantitativedeterminationofhinderedphenolandaromaticamineantioxidantsinanewturbineoilmeasurestheamountofthesecompoundsthathasbeenaddedtotheoilasprotectionagainstoxidation.Besidephenols,turbineoilscanbeformulatedwithotherantioxidantssuchasamineswhichcanextendtheoillife.Inin-serviceoil,thedeterminationmeasurestheamountoforiginal(hinderedphenolandaromaticamine)antioxidantsremainingafteroxidationhasreduceditsinitialconcentration.Thistestmethodisnotdesignedorintendedtodetectalloftheantioxidantintermediatesformedduringthethermalandoxidativestressingoftheoils,whicharerecognizedashavingsomecontributiontotheremainingusefullifeofthein-serviceoil.Nordoesitmeasuretheoverallstabilityofanoil,whichisdeterminedbythetotalcontributionofallspeciespresent.Beforemakingfinaljudgmentontheremainingusefullifeofthein-serviceoil,whichmightresultinthereplacementoftheoilreservoir,itisadvisedtoperformadditionalanalyticaltechniques(asinaccordancewithTestMethodsD6224andD4378;seealsoTestMethodD2272),havingthecapabilityofmeasuringremainingoxidativelifeofthein-serviceoil.Thistestmethodisapplicabletonon-zinctypeofturbineoilsasdefinedbyISO6743Part4,Table1.Thesearerefinedmineraloilscontainingrustandoxidationinhibitors,butnotantiwearadditives.Thetestisalsosuitableformanufacturingcontrolandspecificationacceptance.Whenavoltammetricanalysisisobtainedforaturbineoilinhibitedwithatypicalsynergisticmixtureofhinderedphenolandaromaticamineantioxidants,thereisanincreaseinthecurrentoftheproducedvoltammogrambetween8to12s(or0.8to1.2Vappliedvoltage)(seeNote1)forthearomaticamines,andanincreaseinthecurrentoftheproducedvoltammogrambetween13and16s(or1.3to1.6Vappliedvoltage)(seeNote1)forthehinderedphenolsintheneutralacetonetestsolution(Fig.1:x-axis1s=0.1V).Hinderedphenolantioxidantsdetectedbyvoltammetricanalysisinclude,butarenotlimitedto,2,6-di-tert-butyl-4-methylphenol;2,6-di-tert-butylphenol;and4,4''-Methylenebis(2,6-di-tert-butylphenol).Aromaticamineantioxidantsdetectedbyvoltammetricanalysisinclude,butarenotlimitedto,phenylalphanaphthylamines,andalkylateddiphenylamines.Note18212;Voltageslistedwithrespecttoreferenceelectrode.ThevoltammogramsshowninFigs.1and2wereobtainedwithaplatinumreferenceelectrodeandavoltagescanrateof0.1V/s.Forturbineoilcontainingonlyaromaticaminesasantioxidants,therewillonlybeanincreaseinthecurrentoftheproducedvoltammogrambetween8to12seconds(or0.8to1.2Vappliedvoltage)(seeNote1)forthearomaticamines,byusingtheneutralacetonetestsolution(firstpeakinFig.1).Forturbineoilscontainingonlyhinderedphenolicantioxidants,itispreferabletouseabasicalcoholtestsolutionratherthantheneutralacetonetestsolutions,asthereisanincreaseinthecurrentoftheproducedvoltammogrambetween3to6seconds(or0.3to0.6Vappliedvoltage)(seeNote1)inbasicalcoholtestsolution(Fig.2:x-axis1second=0.1V)inaccordancewithTestMethodD6810.Note8212;x-axis=time(seconds)andy-axisiscurrent(arbitraryunits)withtoplineinFig.2showingt.........
【中国标准分类号】:E34
【国际标准分类号】:75_160_20
【页数】:6P.;A4
【正文语种】:英语
