DIN ETS 300275-1994 网络特征.都市区网络.都市区网络互连;英语版本ETS300275:1994

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【英文标准名称】:Networkaspects(NA)-MetropolitanAreaNetwork(MAN)-InterconnectionofMANs;EnglishversionETS300275:1994
【原文标准名称】:网络特征.都市区网络.都市区网络互连;英语版本ETS300275:1994
【标准号】:DINETS300275-1994
【标准状态】:现行
【国别】:德国
【发布日期】:1994-10
【实施或试行日期】:
【发布单位】:德国标准化学会(DE-DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:电信;电信;城市区域网络;协议;网络;互连接;网络互连;定义;人类;通信网
【英文主题词】:Communicationnetworks;Definition;Definitions;Interconnection;MAN;Metropolitanareanetworks;Network;Networkinterconnection;Protocols;Telecommunication;Telecommunications
【摘要】:ThedocumentdealswiththedirectinterconnectionbetweeneuropeanMANsbymeansofdedicatedlinks.
【中国标准分类号】:M11
【国际标准分类号】:35_110
【页数】:26P.;A4
【正文语种】:德语


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【英文标准名称】:StandardTestMethodforCorrosivenessandOxidationStabilityofHydraulicOils,AircraftTurbineEngineLubricants,andOtherHighlyRefinedOils
【原文标准名称】:液压油、飞机涡轮发动机润滑油和其他高精炼油的腐蚀性和氧化稳定性的试验方法
【标准号】:ASTMD4636-1999(2004)e1
【标准状态】:现行
【国别】:
【发布日期】:1999
【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】:D02.09.0D
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:重量损失;氧化试验;污泥;润滑剂;湿度;液压液;稳定性;氧化稳定性;试验;试验;石油;润滑液;飞机涡轮发动机;飞机涡轮发动机润滑油;飞机涡轮发动机;航空润滑油;油重量损失;其他高精炼油;精炼油;合成液体;涡轮机油;腐蚀作用;腐蚀;石油产品;涡轮机;气体分析;粘度;酸值;加速老化;水
【英文主题词】:hydraulicfluid;lubricant;oxidationstability
【摘要】:Thistestmethodsimulatestheenvironmentencounteredbyfullyformulatedlubricatingfluidsinactualserviceandusesanacceleratedoxidationratetopermitmeasurableresultstobeobtainedinareasonabletime.Theuseofmetalsprovidescatalyticreactivesurfacesofthosematerialscommonlyfoundinrealsystems.Thehightemperatureandairagitationhelpacceleratetheoxidationreactionsthatareexpectedtooccur.Moistureintheairaddsanotherrealisticconditionthatencouragesoilbreakdownbyfacilitatingacidformation.Interpretationofresultsshouldbedonebycomparisonwithdatafromoilsofknownfieldperformance.Theacceleratedconditionslikelywillcauseoneormoreofthefollowingmeasurableeffects:masschangeandcorrodedappearanceofsomemetals;changeofviscosity;increaseinacidnumber;measurablereactionproductsintheformofsludge;andmasslossofoilduetoevaporation.Thistestmethodismostsuitableforoilscontainingoxidationandcorrosioninhibitors.Withoutsuchingredient(s),theseveretestconditionswillyieldratherdrasticchangestotheoil.1.1Thistestmethodcoversthetestingofhydraulicoils,aircraftturbineenginelubricants,andotherhighlyrefinedoilstodeterminetheirresistancetooxidationandcorrosiondegradationandtheirtendencytocorrodevariousmetals.Petroleumandsyntheticfluidsmaybeevaluatedusingmoistordryairwithorwithoutmetaltestspecimens.1.2Thistestmethodconsistsofastandardtestprocedure,analternativeProcedure1,andanalternativeProcedure2.Astherearevariationspossiblewiththistestmethod,itwillbeuptotheparticularspecificationtoestablishtheconditionsrequired.Inadditiontotemperature,thevariablestospecifyifotherthanthoseofthestandardprocedureoralternativeProcedure1or2are:testtime,airflowandhumidity,samplefrequency,testfluidquantity,andmetalspecimen(s).1.3ThevaluesstatedinSIunitsaretoberegardedasstandard.Thevaluesinparenthesesareforinformationonly.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:E34
【国际标准分类号】:75_100
【页数】:10P.;A4
【正文语种】:


【英文标准名称】:Cranes;ropepulleys;selectedrangesandcorrelationofdiametersandoverallwidths
【原文标准名称】:起重机.绳轮.选择范围和直径与宽度的配合
【标准号】:DIN15062-1-1982
【标准状态】:现行
【国别】:德国
【发布日期】:1982-07
【实施或试行日期】:
【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】:机械工程;起重机;滑动轴承;绳滑轮;设计;尺寸;滚柱轴承;钢索传动
【英文主题词】:plainbearings;ropepulleys;design;cranes;cabledrives;cylindrical-rollerbearings;dimensions;mechanicalengineering
【摘要】:Cranes;sheavesforwireropes;selectedrangesandassociationofdiametersandoverallbreadthdimensionsGrues;pouliesàc?ble;sériessélectionnéesetassignationdesdiamètresetdesdimensionsdelargeurtotale
【中国标准分类号】:J80
【国际标准分类号】:53_020_30
【页数】:4P;A4
【正文语种】:德语