【英文标准名称】:TestMethodforCalculatedCentaneIndexbyFourVariableEquation
【原文标准名称】:用四变量方程计算十六烷指数的试验方法
【标准号】:ANSI/ASTMD4737-2004
【标准状态】:作废
【国别】:美国
【发布日期】:2004
【实施或试行日期】:2004-12-01
【发布单位】:美国国家标准学会(US-ANSI)
【起草单位】:ANSI
【标准类型】:()
【标准水平】:()
【中文主题词】:石油产品;试验
【英文主题词】:Equations;Indices;Liquidfuels;Petroleumproducts;Testing;Variable
【摘要】:ThecalculatedCetaneIndexbyFourVariableEquationprovidesameansforestimatingtheASTMcetanenumber(TestMethodD613)ofdistillatefuelsfromdensityanddistillationrecoverytemperaturemeasurements.ThevaluecomputedfromtheequationistermedtheCalculatedCetaneIndexbyFourVariableEquation.TheCalculatedCetaneIndexbyFourVariableEquationisnotanoptionalmethodforexpressingASTMcetanenumber.ItisasupplementarytoolforestimatingcetanenumberwhenaresultbyTestMethodD613isnotavailableandifcetaneimproverisnotused.Asasupplementarytool,theCalculatedCetaneIndexbyFourVariableequationmustbeusedwithdueregardforitslimitations.ProcedureAistobeusedforSpecificationD975,GradesNo.1-DLowSulfur,No.1-D,No.2-D,andNo.4-D.ThismethodforestimatingcetanenumberwasdevelopedbyChevronResearchCo.ProcedureAisbasedonadatasetincludingarelativelysmallnumberofNo.1-Dfuels.TestMethodD4737maybelessapplicabletoNo.1-D,No.1-DLowSulfurandNo.4-DgradesthantoNo.2-Dgrade.ProcedureBistobeusedforSpecificationD975,GradeNo.2-DLowSulfur.Thetestmethod"CalculatedCetaneIndexbyFourVariableEquation"isparticularlyapplicabletoGrade1-D,GradeNo.1-DLowSulfurandGrade2-Ddieselfueloilscontainingstraight-runandcrackedstocks,andtheirblends.Itcanalsobeusedforheavierfuelswith90%recoverypointslessthan382Candforfuelscontainingderivativesfromoilsandsandoilshale.ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:E31
【国际标准分类号】:75_160_20
【页数】:
【正文语种】:英语


【英文标准名称】:Methodsformeasuringtheskidresistanceofpavementsurfaces-TestmethodformeasurementofsurfaceskidresistanceusingtheGripTesterbrakedwheelfixedslipdevice
【原文标准名称】:铺敷路面防滑性的测量方法.使用Grip试验机止动轮固定滑动设备测量表面防滑性能的试验方法
【标准号】:BS7941-2-2000
【标准状态】:现行
【国别】:英国
【发布日期】:2000-09-15
【实施或试行日期】:2000-09-15
【发布单位】:英国标准学会(BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:测量;道路;路面(道路);路面铺筑;摩擦试验;人行道;铺砌区;飞机跑道;交通标志
【英文主题词】:Anti-slipsurfaces;Frictiontests;Pavedareas;Pavements(roads);Pedestrianroads;Roadsigns;Roadsurfacing;Roads;Runways;Testequipment
【摘要】:ThisBritishStandarddescribesamethodfordeterminingtheskidresistanceofasurfaceusingtheGripTestercontinuousreadingbrakedwheelfixedslipdevice.Themethodisapplicabletothefollowing:—highways:surfacings;—highways:horizontalsigns;—airportrunways;—flightdecks;—footways;—pedestrianprecincts;—testpanelsofsurfacesintendedforanyoftheabove.Themethodisformeasurementofskidresistancealongacontinuoussurfaceonexternalpavedsurfacesorindoors.Testspeedscanvaryfrom5km/hto130km/hdependingontheapplication.Themeasuredvaluescanbeaffectedbythetestspeed.
【中国标准分类号】:R18
【国际标准分类号】:17_040_20;93_080_20
【页数】:14P.;A4
【正文语种】:英语