【英文标准名称】:Expressionofperformanceofsamplehandlingsystemsforprocessanalyzers(IEC61115:1992);GermanversionEN61115:1993
【原文标准名称】:过程分析器试样处理系统性能表示
【标准号】:DINEN61115-1994
【标准状态】:现行
【国别】:德国
【发布日期】:1994-08
【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】:定义;工作性能;抽样方法;企业;试验;分析样品;过程分析器;液体;作标记;气体
【英文主题词】:Analysis;Analysissamples;Analyzers;Definition;Definitions;Electronicinstruments;Enterprises;Gases;Inspection;Liquids;Marking;Performanceinservice;Processanalyzers;Samplehandlingsystems;Sampling
【摘要】:Thedocumentisapplicabletosystemshandlinggaseousorliquidsamplesforprocessanalysersusedforanyultimatepurpose(processcontrol,emission,ambientairmonitoringetc).
【中国标准分类号】:L70
【国际标准分类号】:71_040_40
【页数】:24P;A4
【正文语种】:德语


【英文标准名称】:StandardPracticeforCalculatingInternationalFrictionIndexofaPavementSurface
【原文标准名称】:计算路面国际摩擦指数的标准实施规程
【标准号】:ASTME1960-2007
【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】:E17.21
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:摩擦;国际的;路面;灰泥;表面;试验方法
【英文主题词】:
【摘要】:ThisisthepracticeforcalculatingtheIFIofthepavement.TheIFIhasprovenusefulforharmonizationofthefrictionmeasuringequipment.F60andSphaveproventobeabletopredictthespeeddependenceofwetpavementx2013;relatedmeasurementsofthevarioustypesoffriction-measuringequipment.2ThetwoIFIparameters(F60andSp)havebeenfoundtobereliablepredictorsofthedependenceofwetpavementfrictionontireslipandvehiclespeed.TheIFIparameters,F60andSp,canbeusedtocalculatethecalibratedfrictionatanotherx2013;slipspeedusingatransformationequation.TheIFImodelgivenbelowdescribestherelationshipbetweenthevaluesofwetpavementfrictionFRSmeasuredataslipspeedofSandbetweenthefrictionvaluesmeasuredbydifferenttypesofequipment.AsignificanceoftheIFIModelisthatthemeasurementoffrictionwithadevicedoesnothavetobeatoneofthespeedsrunintheexperiment.FRScanbemeasuredatsomeSandisalwaysadjustedtoFR60.Thus,ifadevicecannotmaintainitsnormaloperatingspeedandmustrunatsomespeedhigherorlowerbecauseoftraffic,themodelstillworkswell.InthatcaseSisdeterminedbythevehiclespeed(V)whichcanbeconvertedtoSbymultiplyingVbythepercentslipforfixedslipequipmentorbymultiplyingVbythesineoftheslipangleforsideforceequipment.Thispracticedoesnotaddresstheproblemsassociatedwithobtainingameasuredfrictionormeasuredmacrotexture.1.1ThispracticecoversthecalculationoftheInternationalFrictionIndex(IFI)fromameasurementofpavementmacrotextureandwetpavementfriction.TheIFIwasdevelopedinthePIARCInternationalExperimenttoCompareandHarmonizeTextureandSkidResistanceMeasurements.Theindexallowsfortheharmonizingoffrictionmeasurementswithdifferentequipmenttoacommoncalibratedindex.Thispracticeprovidesforharmonizationoffrictionreportingfordevicesthatuseasmoothtreadtesttire.1.2TheIFIconsistsoftwoparametersthatreportthecalibratedwetfrictionat60km/h(F60)andthespeedconstantofwetpavementfriction(Sp).1.3Themeanprofiledepth(MPD)hasbeenshowntobeusefulinpredictingthespeedconstant(gradient)ofwetpavementfriction.1.4Alineartransformationoftheestimatedfrictionat60km/hprovidesthecalibratedF60value.Theestimatedfrictionat60km/hisobtainedbyusingthespeedconstanttocalculatetheestimatedfrictionat60km/hfromameasurementmadeatanyspeed.1.5ThevaluesstatedinSI(metric)unitsaretoberegardedasstandard.Theinch-poundequivalentsarerationalized,ratherthanexactmathematicalconversions.1.6Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifanyassociatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:A42;P66
【国际标准分类号】:93_080_99
【页数】:5P.;A4
【正文语种】: