【英文标准名称】:StandardTestMethodforSimulatedServiceCorrosionTestingofEngineCoolants
【原文标准名称】:发动机冷却剂的模拟使用腐蚀的标准试验方法
【标准号】:ASTMD2570-1996(2002)e1
【标准状态】:现行
【国别】:
【发布日期】:1996
【实施或试行日期】:
【发布单位】:美国材料与试验协会(ASTM)
【起草单位】:D15.09
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:药液;腐蚀;冷却剂;腐蚀试验;工艺;化合物
【英文主题词】:automotive;corrosion;enginecoolants;simulatedservice;
【摘要】:Thistestmethod,byacloserapproachtoenginecoolingsystemconditions,providesbetterevaluationandselectivescreeningofenginecoolantsthanispossiblefromglasswaretesting(TestMethodD1384).Theimprovementisachievedbycontrolledcirculationofthecoolant,bytheuseofautomotivecoolingsystemcomponents,andbyagreaterratioofmetalsurfaceareatocoolantvolume.Althoughthistestmethodprovidesimproveddiscrimination,itcannotconclusivelypredictsatisfactorycorrosioninhibitionandservicelife.Ifgreaterassuranceofsatisfactoryperformanceisdesired,itshouldbeobtainedfromfull-scaleenginetests(TestMethodD2758)andfromfieldtestinginactualservice(PracticeD2847).SignificanceandinterpretationofthetestanditslimitationsarediscussedfurtherinAppendixX1.IfthistestmethodisusedasaqualificationtestforSpecificationD3306andSpecificationD4985,therecommendedcomponentslistedinSection5shallbeused.Ifitisnotbeingusedforsuchqualificationpurposes,thensuitablesubstitutioncomponentsmaybeused,ifagreeduponbetweenthecontractingparties.1.1Thistestmethodevaluatestheeffectofacirculatingenginecoolantonmetaltestspecimensandautomotivecoolingsystemcomponentsundercontrolled,essentiallyisothermallaboratoryconditions.1.2Thistestmethodspecifiestestmaterial,coolingsystemcomponents,typeofcoolant,andcoolantflowconditionsthatareconsideredtypicalofcurrentautomotiveuse.1.3ThevaluesstatedineitherSIorinch-poundunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareapproximateequivalentsforinformationonly.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.SpecificprecautionarystatementsaregiveninSection6.
【中国标准分类号】:G04
【国际标准分类号】:71_100_45
【页数】:7P.;A4
【正文语种】:


【英文标准名称】:Framerelayservices-Part3:framerelaydatatransmissionservice-Servicedefinition.
【原文标准名称】:帧中继业务.第3部分:帧中继数据传输业务.业务定义
【标准号】:NFZ82-399-3-2001
【标准状态】:现行
【国别】:法国
【发布日期】:2001-02-01
【实施或试行日期】:2001-02-20
【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】:电路网络;通信;电信;电信;电信;数据传送;远程通信;电气工程;服务设施;继电器;定义;综合服务数字网络;数据传输方法;通信网;帧中继服务;综合业务数字网;电信设备
【英文主题词】:
【摘要】:
【中国标准分类号】:M11
【国际标准分类号】:33_040_01
【页数】:12P;A4
【正文语种】:其他