Product Code:SAE ARP4102/1
Title:On Board Weight and Balance System
Issuing Committee:S-7 Flight Deck Handling Qualities Stds For Trans Aircraft
Scope: This document recommends criteria for the flight deck display of an On Board Weight and Balance System. The system may have the capability of a primary operational device or be a secondary advisory source of information of weight and center of gravity position. The recommendations apply to transport aircraft and describe the operational and functional requirements for the display of an On Board Weight and Balance System.
Rationale: This document recommends criteria for the flight deck display of an On Board Weight and Balance System. The system may have the capability of a primary operational device or be a secondary advisory source of information of weight and center of gravity position. The recommendations apply to transport aircraft and describe the operational and functional requirements for the display of an On Board Weight and Balance System.【英文标准名称】:StandardTestMethodforMeasuringParticleSizeDistributionofRDF-5
【原文标准名称】:测定回收废燃料的粒度分布
【标准号】:ASTME1037-1984(2004)
【标准状态】:现行
【国别】:
【发布日期】:1984
【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】:D34.03
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:测量;粒度分布
【英文主题词】:
【摘要】:TheparticlesizedistributionofRDF-5stronglyinfluencesthestorageandhandlingcharacteristicsofthefuel.Smallparticlestendtoblockflowthroughstoragebinsandfeedhoppers,althoughcorrectbinandhopperdesignswillalleviatethisproblemofblockage.ThistestmethodofmeasuringsizebyhandallowsaccuratedescriptionofRDF-5particlesizedistribution.Measurementbyhandissuperiortosievingtechniques,whereinparticlesmaybebrokenbythesizeseparationtechniqueitself.However,handmeasurementismoretime-consumingthansievingtechniques.1.1ThistestmethodisusedtodeterminethesizedistributionofaRDF-5sample.Sizeisdefinedasthemaximumlengthoftheparticle,wherelengthisdeterminedbytheRDF-5manufacturingprocess.Thatis,apellet,cubette,orbriquetteallhavearecognizablelength.displaysthesizesandshapesofsomeRDF-5particles.1.2AnairdriedRDF-5sampleisseparatedintocategoriesofdifferingparticlesizes.Thesizedistributionismeasuredastheweightpercentageofeachsizecategory.Agraphofafunctionofthecumulativefractionofmaterialbyweightfinerthanparticlesizeversusparticlesizeisplotted.Fromthisplotaretakenvalueswhichdescribethesizedistribution-theuniformityconstantandthecharacteristicparticlesize.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:N04
【国际标准分类号】:
【页数】:2P.;A4
【正文语种】: