JB/T 54260-1999 量具量仪产品质量分等 铸铁平板
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来源:标准资料网
基本信息
标准名称: | 量具量仪产品质量分等 铸铁平板 |
英文名称: | Product quality classification for measuring tool and instrument - Cast iron surface plate |
中标分类: |
机械 >>
工艺装备 >>
量具与量仪 |
替代情况: | JB/T 54260-1994 |
发布日期: | 2000-01-01 |
实施日期: | 1999-06-09 |
首发日期: | 1900-01-01 |
作废日期: | 1900-01-01 |
出版日期: | 1900-01-01 |
页数: | 10页 |
适用范围
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前言
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目录
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引用标准
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所属分类: 机械 工艺装备 量具与量仪
【英文标准名称】:StandardTestMethodforEvaluationofDieselEngineOilsintheT-11ExhaustGasRecirculationDieselEngine
【原文标准名称】:评估T-11废气再循环柴油机中柴油机油的标准试验方法
【标准号】:ASTMD7156-2007a
【标准状态】:现行
【国别】:
【发布日期】:2007
【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.B0
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:柴油发动机;柴油机油;发动机油;评估;废气;工业用油;润滑剂;再循环;测试
【英文主题词】:dieselengineoil;exhaustgasrecirculation;lubricants;soot;T-11dieselengine;viscosity;Dieselenginefueloils;Dieselengines;Diesellubricatingoils;Gasrecirculationdieselengine
【摘要】:Thistestmethodwasdevelopedtoevaluatetheviscosityincreaseandsootconcentration(loading)performanceofengineoilsinturbochargedandintercooledfour-cycledieselenginesequippedwithEGR.Obtainresultsfromusedoilanalysis.Thetestmethodmaybeusedforengineoilspecificationacceptancewhenalldetailsoftheprocedurearefollowed.1.1Thistestmethodcoversanenginetestprocedureforevaluatingdieselengineoilsforperformancecharacteristicsinadieselengineequippedwithexhaustgasrecirculation,includingviscosityincreaseandsootconcentrations(loading).ThistestmethodiscommonlyreferredtoastheMackT-11.1.1.1Thistestmethodalsoprovidestheprocedureforrunninganabbreviatedlengthtest,whichiscommonlyreferredtoastheT-11A.TheproceduresfortheT-11AareidenticaltotheT-11withtheexceptionoftheitemsspecificallylistedinAnnexA8.Additionally,theproceduremodificationslistedinAnnexA8refertothecorrespondingsectionoftheT-11procedure.1.2ThevaluesstatedineitherSIorinch-poundunitsaretoberegardedseparatelyasthestandard.Withinthetestmethod,theinch-poundunitsareshowninparentheseswhencombinedwithSIunits.TheonlyexceptioniswherethereisnodirectSIequivalentsuchasscrewthreads,nationalpipethreads/diameters,andtubingsizes.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.SeeAnnexA6forspecificsafetyhazards.
【中国标准分类号】:E34
【国际标准分类号】:75_100
【页数】:34P.;A4
【正文语种】: