DIN EN 60947-2/A1-1998 低压开关设备.第2部分:断路器.修改A1
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【英文标准名称】:Low-voltageswitchgearandcontrolgear-Part2:Circuit-breakers;AmendmentA1(IEC60947-2:1995/A1:1997);GermanversionEN60947-2/A1:1997
【原文标准名称】:低压开关设备.第2部分:断路器.修改A1
【标准号】:DINEN60947-2/A1-1998
【标准状态】:作废
【国别】:德国
【发布日期】:1998-11
【实施或试行日期】:1998-11-01
【发布单位】:德国标准化学会(DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:电气安全;保护设备;故障电流断路器;检验;故障电流;开关;分类;定义;试验;规范(验收);电磁兼容性;低电压;作标记;开关设备;交流电流;干扰抑制;电气保护设备;电气工程;低压开关设备;断路器;交流电压
【英文主题词】:
【摘要】:
【中国标准分类号】:K31
【国际标准分类号】:29_120_60
【页数】:27P;A4
【正文语种】:德语
【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】:ASTMD7590-2009e1
【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】:苯基甲萘胺;烷基化二苯胺;涡轮油;线性扫描伏安法(LSV);受阻酚抗氧化剂;芳香胺抗氧化剂;锌二烃基二硫代磷酸盐;抗氧化剂(石油);工业用油;胺价;线性扫描伏安法;涡轮润滑剂
【英文主题词】:phenylalphanaphthylamine;alkylateddiphenylamine;turbineoil;linearsweepvoltammetry(LSV);hinderedphenolantioxidant;aromaticamineantioxidant;zincdialkyldithiophosphates;Antioxidants(petroleum);Industrialoils;Aminevalues;Linearsweepvoltammet
【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】:Mechanicalvibration.Methodsandcriteriaforthemechanicalbalancingofflexiblerotors
【原文标准名称】:机械振动.挠性转子的机械平衡法和要求
【标准号】:BS7508-1995
【标准状态】:作废
【国别】:英国
【发布日期】:1995-03-15
【实施或试行日期】:
【发布单位】:英国标准学会(BSI)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:振动;机械试验;分类系统;平衡;电机;旋转部件;机械测量;原动机;挠性;转子;质量
【英文主题词】:mechanicalmeasurement;rotatingparts;mechanicaltesting;rotors(mechanical);vibration;classificationsystems;balancing;flexibility;electricmachines;primemovers;quality
【摘要】:
【中国标准分类号】:J04
【国际标准分类号】:21_120_40
【页数】:40P;A4
【正文语种】:英语
