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【英文标准名称】:StandardGuideforMeasurementofRemainingPrimaryAntioxidantContentInIn-ServiceIndustrialLubricatingOilsbyLinearSweepVoltammetry
【原文标准名称】:用线性扫描伏安法测量使用中工业润滑油残留原始抗氧化剂含量的标准指南
【标准号】:ASTMD7590-2009
【标准状态】:现行
【国别】:
【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】:(Guide)
【标准水平】:()
【中文主题词】:苯基萘胺α;烷基化物二苯胺;透平油;线性扫描伏安法(LSV);阻碍石碳酸抗氧化剂;芳族胺抗氧化剂;锌二烃基二硫代磷酸盐
【英文主题词】:2,6-di-tert-butylphenol;2,6-di-tert-butyl-4methylphenol;phenylalphanaphthylamine;alkylateddiphenylamine;turbineoil;linearsweepvoltammetry(LSV);hinderedphenolantioxidant;aromaticamine
【摘要】:Thequantitativedeterminationofremainingantioxidantsforin-serviceindustrialoilsbymeasuringtheamountoftheseadditivesthathavebeenaddedtotheoilasprotectionagainstoxidation.Industriallubricants,suchasturbineoils,compressoroils,gearoils,hydraulicoils,bearinglubricantsandgreasescanbeformulatedwithawidevarietyofantioxidantstypessuchasphenolsandamines(asprimaryantioxidants),whichareworkingsynergisticallyandthereforeallimportanttobemonitoredindividually.Forin-serviceoils,theLSVdeterminesandcomparestheamountoforiginalprimaryantioxidantsremainingafteroxidationhavereduceditsinitialconcentration.Thisguidecoversproceduresforprimaryantioxidantssuchasaminesandphenols,asdescribedbyTestMethodD6971andD6810.LSVisnotdesignedorintendedtodetectalloftheantioxidantintermediatesformedduringthethermalandoxidativestressingoftheoils,whicharerecognizedashavingsomecontributiontotheremainingusefullifeoftheusedorin-serviceoil.Inordertomeasuretheoverallstabilityofanoil(includingcontributionofintermediatespresent),andbeforemakingfinaljudgmentontheremainingusefullifeoftheusedoil(whichmightresultinthereplacementoftheoilreservoir),itisadvisedtoperformadditionalanalyticaltechniques(inaccordancewithPracticeD4378andPracticeD6224).Thisguideisapplicabletoawiderangeofindustrialoils,bothmineralorsyntheticbased,whichcancontainrustandoxidationinhibitors,antiwearadditivessuchaszincdialkyldithiophosphatesongearoils,circulatingoils,transmissionoilsandotherindustriallubricatingoils.Thetestisalsosuitableformanufacturingcontrolandspecificationacceptance.Whenavoltammetricanalysisisobtainedforaindustriallubricantinhibitedwithatleastonetypeofantioxidant,thereisanincreaseinthecurrentoftheproducedvoltammogrambetween5to8s(or0.5to0.8Vappliedvoltage)(seeNote1)forthezincdialkyldithiophosphatetypeofantioxidant(Fig.1),anincreaseinthecurrentoftheproducedvoltammogrambetween8to12s(or0.8to1.2Vappliedvoltage)(Fig.2)(seeNote1)forthearomaticamines,andincreaseinthecurrentoftheproducedvoltammogrambetween13and16s(or1.3to1.6Vappliedvoltage)(seeNote1)forthehinderedphenolsorcarbamatesintheneutralacetonesolution(Fig.2:x-axis1s=0.1V),orboth.Hinderedphenolantioxidantsdetectedbyvoltammetricanalysisinclude,butarenotlimitedto,2,6-di-tert-butyl-4-methylphenol;2,6-di-tert-butylphenoland4,4x2019;-Methylenebis(2,6-di-tert-butylphenol).Aromaticamineantioxidantsdetectedbyvoltammetricanalysisinclude,butarenotlimitedto,phenylalphanaphthylamines,andalkylateddiphenylamines.Note18212;Voltageslistedwithrespecttoreferenceelectrode.ThevoltammogramsshowninFigs.1-6wereobtainedwithaplatinumreferenceelectrodeandavoltagescanrateof0.1V/s.Forindustriallubricantscontainingzincdialkyldithiophosphatetypeofantioxidants,thereisanincreaseinthecurrentoftheproducedvoltammogrambetween5to8s(or0.5to0.8Vappliedvoltage)(seeNote1)byusingtheneutralacetonetestsolution(seeFig.1).ThereisnocorrespondingASTMInternationalstandarddescribingthetestmethodpr........
【中国标准分类号】:E34
【国际标准分类号】:75_100
【页数】:14P.;A4
【正文语种】:


【英文标准名称】:Buildingconstructionmachineryandequipment-Portable,hand-held,internalcombustionenginedrivencut-offmachines-Safetyrequirementsandtesting.
【原文标准名称】:建筑施工机械和设备.便携、手持、内燃机驱动的切断机.安全要求和试验
【标准号】:NFE65-403-2008
【标准状态】:作废
【国别】:法国
【发布日期】:2008-07-01
【实施或试行日期】:2008-07-11
【发布单位】:法国标准化协会(FR-AFNOR)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:研磨切断机;事故预防;建筑工具;建筑机械;切断机;定义;设计;磨床;磨削工具;危害;内燃机;作标记;机械工程;测量方法;噪声测量;职业安全;操作说明书;切断砂轮;图形符号;便携的;保护设备;安全;安全工程;安全要求;规范(验收);测试;工具;振动;振动测量
【英文主题词】:Abrasivecutting-offmachines;Accidentprevention;Buildingimplements;Buildingmachines;Cut-offmachines;Definition;Definitions;Design;Grindingmachines;Grindingtools;Hazards;Internalcombustionengines;Marking;Mechanicalengineering;Methodsformeasuring;Noisemeasurements;Occupationalsafety;Operatinginstructions;Parting-offwheels;Pictographs;Portable;Protectiondevices;Safety;Safetyengineering;Safetyrequirements;Specification(approval);Testing;Tools;Vibration;Vibrationmeasurement
【摘要】:
【中国标准分类号】:P97
【国际标准分类号】:25_140_99;91_220
【页数】:51P.;A4
【正文语种】:其他