BS ISO 14887-2000 样品制备.粉末在液体中的分散程序

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【英文标准名称】:Samplepreparation-Dispersingproceduresforpowdersinliquids
【原文标准名称】:样品制备.粉末在液体中的分散程序
【标准号】:BSISO14887-2000
【标准状态】:现行
【国别】:英国
【发布日期】:2001-03-15
【实施或试行日期】:2001-03-15
【发布单位】:英国标准学会(BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:凝聚作用;分散作用(化学);水分散体;粒度分布;试样;悬浮液;粒度测量;试样制备;粒状材料;尺寸
【英文主题词】:Definition;Definitions;Dispersion;Dispersionpower;Dispersions(chemical);Measurementofliquids;Particlesize;Particlesizeanalysis;Powder;Specimenpreparation;Testing
【摘要】:ThisInternationalStandardwasdevelopedtohelpparticlesizeanalystsmakegooddispersionsfrompowder/liquidcombinationswithwhichtheyarenotexperienced.Itprovidesproceduresfor—wettingapowderintoaliquid;—deagglomeratingthewettedclumps;—determiningifsolutioncompositioncanbeadjustedtopreventreagglomeration;—selectingdispersingagentstopreventreagglomeration;—evaluatingthestabilityofthedispersionagainstreagglomeration.ThisInternationalStandardisapplicabletoparticlesranginginsizefromapproximately0,05to100μm.Itprovidesaseriesofquestionsonthenatureofthepowderandliquidinvolved.Theanswersareusedwithchartsthatguidetheusertogenericdispersingagentsthatarelikelytobesuitablefordispersingthepowderintheliquid.ThisInternationalStandardappliesonlytothepreparationofsimple,dilutedispersions(lessthan1%byvolumesolids)forparticlesizeanalysis.Itdoesnotdealwiththeformulationofcomplexandcommercialmixtureshighlyloadedwithsolids,suchaspaints,inks,Pharmaceuticals,herbicidesandcompositeplastics.
【中国标准分类号】:A42
【国际标准分类号】:19_120
【页数】:34P;A4
【正文语种】:英语