BS EN ISO 8130-5-2010 粉末涂料.粉末/空气混合物流动特性的测定

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【英文标准名称】:Coatingpowders.Determinationofflowpropertiesofapowder/airmixture
【原文标准名称】:粉末涂料.粉末/空气混合物流动特性的测定
【标准号】:BSENISO8130-5-2010
【标准状态】:现行
【国别】:英国
【发布日期】:1993-04-15
【实施或试行日期】:1993-04-15
【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】:
【英文主题词】:Abilitiestoflow;Air;Airquality;Calculationformula;Calorificvalues;Coatingmaterials;Concentration;Conglomerates;Determination;Flowanalysis;Flowproperties;Interpretations;Paints;Particulatematerials;Powder;Powdercoatings;Properties;Samplingmethods;Sprayability;Spraying;Teststandards;Testing;Varnishes
【摘要】:ThispartofISO8130specifiesamethodfordeterminingtheflowpropertiesofamixtureofcoatingpowderandair.Themethodreflectscommercialpracticeinpowderspraying(see“Bibliography”,AnnexB).Theresultsobtainedareinfluencedbythecompositionofthecoatingpowder,itsdensity,particlesizedistributionandparticleshape,togetherwiththetendencyoftheparticlestoagglomerateandtoacceptatriboelectriccharge.NOTE1Itiswellknownthatthetransportandsprayingcharacteristicsofpowdersarehighlydependentontheirflowpropertiesinbulkandinair.Theproceduredescribedinthismethodisconsideredtobemoremeaningfulthanthe“flowangle”approachsometimesusedtoevaluatebulkflowproperties.Inthelatter,theangleoftheconeformedwhenapowderisallowedtoflowthroughaverticalfunnelontoahorizontalsurfaceismeasured.Agivenmassofpowderwithgoodflowpropertiesformsashallowerconethananequalmassofapowderwithpoorerflow.Theobjectionstotheflowanglemethodarethatitisdifficulttoobtainaprecisemeasurementandthatthepowderisusedalone,whereasduringapplicationitismixedwithair.
【中国标准分类号】:G51
【国际标准分类号】:87_040
【页数】:10P.;A4
【正文语种】:英语