【英文标准名称】:Heating,ventilationandairconditioning;terminologyandgraphicalsymbols(VDIcodeofpractice)
【原文标准名称】:房间通风技术.专业术语和图形符号(VDI通风规则)
【标准号】:DIN1946T.1-1988
【标准状态】:作废
【国别】:
【发布日期】:
【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】:
【英文主题词】:
【摘要】:
【中国标准分类号】:
【国际标准分类号】:
【页数】:
【正文语种】:


【英文标准名称】:StandardTestMethodforPourPointofPetroleumProducts(AutomaticPressurePulsingMethod)
【原文标准名称】:石油产品流点的标准试验方法(自动压力脉冲法)
【标准号】:ASTMD5949-2010
【标准状态】:现行
【国别】:美国
【发布日期】:2010
【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】:D02.07
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:Peltier;petroleumproducts;pourpoint;pressurepulsing;thermoelectric;Automatedprocedures--petroleumproductsanalysis;Fueloils;Fuelsystems;Instrumentalmeasurement--petroleumproducts;Lubricatingoils;Petroleumproducts;Pipelineoperatio
【摘要】:Thepourpointofapetroleumproductisanindexofthelowesttemperatureofitsutilityforcertainapplications.Flowcharacteristics,likepourpoint,canbecriticalforthecorrectoperationoflubricatingoilsystems,fuelsystems,andpipelineoperations.Petroleumblendingoperationsrequireprecisemeasurementofthepourpoint.Inmostcases,thistestmethoddoesnotrequiretheuseofmechanicalrefrigerationapparatus(see7.1).ThistestmethodyieldsapourpointinaformatsimilartoTestMethodD97/IP15whenthe3x00B0;Cintervalresultsarereported.Note28212;SincesomeusersmaywishtoreporttheirresultsinaformatsimilartoTestMethodD97(in3x00B0;Cintervals)theprecisionswerederivedfromthetemperaturesroundedtothe3x00B0;intervals.ForstatementsonbiasrelativetoTestMethodD97,see13.3.Testresultsfromthistestmethodcanbedeterminedateither1or3x00B0;Cintervals.ThistestmethodhasbetterrepeatabilityandreproducibilityrelativetoTestMethodD97/IP15asmeasuredinthe1992and1998interlaboratorytestprograms.1.1Thistestmethodcoversthedeterminationofpourpointofpetroleumproductsbyanautomaticinstrumentthatappliesacontrolledburstofnitrogengasontothespecimensurfacewhilethespecimenisbeingcooledanddetectsmovementofthesurfaceofthetestspecimenwithanopticaldevice.1.2Thistestmethodisdesignedtocovertherangeoftemperaturesfromx2212;57to+51x00B0;C.However,therangeoftemperaturesincludedinthe1992interlaboratorytestprogramonlycoveredthetemperaturerangefromx2212;39to+6x00B0;Candtherangeoftemperaturesincludedinthe1998interlaboratorytestprogramwasfromx2212;51tox2212;11x00B0;C.(see13.4).1.3Testresultsfromthistestmethodcanbedeterminedat1or3x00B0;Ctestingintervals.1.4Thistestmethodisnotintendedforusewithcrudeoils.Note18212;Theapplicabilityofthistestmethodorresidualfuelsampleshasnotbeenverified.Forfurtherinformationonapplicability,referto13.4.1.5ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.6Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:E30
【国际标准分类号】:75_080
【页数】:6P.;A4
【正文语种】:英语