ASTM D5159-2004 粒状活性碳粉化磨损的标准指南

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【英文标准名称】:StandardGuideforDustingAttritionofGranularActivatedCarbon
【原文标准名称】:粒状活性碳粉化磨损的标准指南
【标准号】:ASTMD5159-2004
【标准状态】:现行
【国别】:
【发布日期】:2004
【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】:D28.04
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:粉末;活性碳;试验
【英文主题词】:activatedcarbon;attrition;dusting;granular
【摘要】:Threeforcescanmechanicallydegradeagranularactivatedcarbon:impact,crushing,andattrition.Ofthesethree,attrition,orabrasion,isthemostcommoncauseofdustformationinactualservice.Publishedtestprocedurestodeterminethe"hardness"ofactivatedcarbonsproduceresultsthatingeneralcannotbecorrelatedwithfieldexperience.Forexample,theball-panhardnesstestappliesallthreeforcestothesampleinavariablemannerdeterminedbythesize,shape,anddensityoftheparticles.The"stirringbar"abrasiontestmeasuresattritionsolongastheparticlesizeissmallerthan12mesh.Thereissomeevidence,however,thattheresultsofthistestmethodareinfluencedbyparticlegeometry.Theproceduresetforthinthisguidemeasurestheeffectoffrictionforcesbetweenvibratingorslowlymovingparticlesduringthetestandmaybeonlyslightlydependentonparticlesize,shapeanddensityeffects.1.1Thisguidepresentsaprocedureforevaluatingtheresistancetodustingattritionofgranularactivatedcarbons.Forthepurposeofthisguide,thedustattritioncoefficient,DA,isdefinedastheweight(orcalculatedvolume)ofdustperunittime,collectedonapreweighedfilter,inagivenvibratingdeviceduringadesignatedtimeperunitweightofcarbon.Theinitialdustcontentofthesamplemayalsobedetermined.Granularactivatedcarbonisdefinedasaminimumof90%beinglargerthan80mesh(0.18mm)(seeTestMethodsD2867).1.2ThevaluesstatedinSIunitsaretoberegardedasthestandard.Theinch-poundunitsgiveninparenthesesareforinformationonly.1.3Thisguidedoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisguidetoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:G04
【国际标准分类号】:19_120;71_040_30
【页数】:4P.;A4
【正文语种】: