【英文标准名称】:Poresizedistributionandporosityofsolidmaterialsbymercuryporosimetryandgasadsorption-Mercuryporosimetry
【原文标准名称】:用水银孔率法和气体吸附法测定固体材料的孔隙尺寸分布和孔隙率.水银孔率法
【标准号】:BSISO15901-1-2006
【标准状态】:现行
【国别】:英国
【发布日期】:2006-01-23
【实施或试行日期】:2006-01-23
【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】:校准;定义;定义(术语);评估;气体吸附;材料;汞;方法;粒度分布;孔隙尺寸;孔隙率;孔隙度测量;疏松材料;规程;取样
【英文主题词】:Calibration;Definition;Definitions;Evaluation;Gasadsorption;Materials;Mercury;Methods;Particlesizedistribution;Poresizes;Porosity;Porositymeasurement;Porousmaterials;Procedures;Sampling
【摘要】:ThisInternationalStandarddescribesamethodfortheevaluationoftheporesizedistributionandthespecificsurfaceinporesofsolidsbymercuryporosimetryaccordingtothemethodofRitterandDrake[1],[2].Itisacomparativetest,usuallydestructiveduetomercurycontamination,inwhichthevolumeofmercurypenetratingaporeorvoidisdeterminedasafunctionofanappliedhydrostaticpressure,whichcanberelatedtoaporediameter.Practicalconsiderationspresentlylimitthemaximumappliedabsolutepressuretoabout400MPa(60000psia)correspondingtoaminimumequivalentporediameterofapproximately0,003μm.Themaximumdiameterwillbelimitedforsampleshavingasignificantdepthduetothedifferenceinhydrostaticheadofmercuryfromthetoptothebottomofthesample.Forthemostpurposes,thislimitcanberegardedas400μm.Themeasurementscoverinterparticleandintraparticleporosity.Ingeneral,itcannotdistinguishbetweentheseporositieswheretheyco-exist.Themethodissuitableforthestudyofmostnon-wettable,bymercury,porousmaterials.Samplesthatamalgamatewithmercury,suchascertainmetals,e.g.gold,aluminium,reducedcopper,reducednickelandsilver,canbeunsuitableforthistechniqueorcanrequireapreliminarypassivation.Undertheappliedpressure,somematerialsaredeformed,compactedordestroyed,wherebyopenporescanbecollapsedandclosedporesopened.Insomecases,itispossibletoapplysamplecompressibilitycorrectionsandusefulcomparativedatacanstillbeobtained.Forthesereasons,themercuryporosimetrytechniqueisconsideredtobecomparative.
【中国标准分类号】:A42
【国际标准分类号】:19_120
【页数】:28P;A4
【正文语种】:英语