NF X20-522-2005 天然气.成分的热值、密度、相对密度和沃泊指数的计算

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【英文标准名称】:Naturalgas-Calculationofcalorificvalues,density,relativedensityandWobbeindexfromcomposition.
【原文标准名称】:天然气.成分的热值、密度、相对密度和沃泊指数的计算
【标准号】:NFX20-522-2005
【标准状态】:现行
【国别】:法国
【发布日期】:2005-11-01
【实施或试行日期】:2005-11-05
【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】:热值;化学成分;定义;密度;数学计算;计算方法;天然气;沃泊指数
【英文主题词】:Calorificvalue;Calorificvalues;Chemicalcomposition;Definition;Definitions;Density;Mathematicalcalculations;Methodsofcalculation;Naturalgas;Wobbeindex
【摘要】:
【中国标准分类号】:E24
【国际标准分类号】:75_060
【页数】:63P;A4
【正文语种】:其他


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【英文标准名称】:Agriculturalwheeledtractors-Operator'sseat-Laboratorymeasurementoftransmittedvibration
【原文标准名称】:农用轮式拖拉机.驾驶员的座椅.传动振动的实验室测量方法
【标准号】:BSISO5007-2003
【标准状态】:现行
【国别】:英国
【发布日期】:2003-05-05
【实施或试行日期】:2003-05-05
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:定义;试验;座椅;人类工效学;地面车辆;农用设备;农用拖拉机;农业机械;振动试验;驾驶员座椅;振动测量
【英文主题词】:Agriculturalequipment;Agriculturalmachines;Agriculturaltractors;Definition;Definitions;Driverseats;Ergonomics;Groundvehicles;Seats;Testing;Tests;Vibrationmeasurement;Vibrationtests
【摘要】:ThisInternationalStandardspecifies,inaccordancewithISO10326-1,alaboratorymethodformeasuringandevaluatingtheeffectivenessofthesuspensionofoperatorseatsonagriculturalwheeledtractors.Italsospecifiesacceptancecriteriabasedonthetestresults,whiledefiningtheinputspectralclassesrelatingtothreeclassesofagriculturaltractorwithrubbertyres,unsprungrearaxlesandnolow-frequencycabisolation—thoseofupto3600kg(class1),thoseoffrom3600kgto6500kg(class2),andthoseofover6500kg(class3)—eachofwhichdefinesagroupofmachineshavingsimilarvibrationcharacteristics.Themethodteststheeffectivenessoftheseatsuspensioninreducingtheverticalwhole-bodyvibrationtransmittedtotheoperatoratfrequenciesoffrom1Hzto20Hz.Itisnotapplicabletovibrationreachingtheoperatorotherthanthroughtheseat(e.g.thatsensedbytheoperator'sfeetontheplatformorcontrolpedalsorhandsonthesteeringwheel).NOTEThetestsandcriteriadefinedinthisInternationalStandardareintendedforoperatorseatsusedinagriculturaltractorsofconventionaldesign.Tractorswithdesignfeaturessuchasisolatedfrontorrearaxlesorbothandlow-frequencycabsuspensions,whichresultinsignificantlydifferentvibrationcharacteristics,canbetestedinaccordancewithISO5008todetermineawholebodyvibrationemissionvalueorusingotherstandardsdevelopedformeasuringandevaluatingtheeffectivenessoftheseatsuspensiononsuchvehicles.
【中国标准分类号】:T69
【国际标准分类号】:13_160;65_060_10
【页数】:24P.;A4
【正文语种】:英语