ASTM F316-2003 用起泡点和气孔平均流量法测定膜过滤器孔隙尺寸特点的标准试验方法
时间:2024-05-03 19:22:57 来源: 标准资料网 作者：标准资料网 阅读：8419
【英文标准名称】:StandardTestMethodsforPoreSizeCharacteristicsofMembraneFiltersbyBubblePointandMeanFlowPoreTest
【原文标准名称】:用起泡点和气孔平均流量法测定膜过滤器孔隙尺寸特点的标准试验方法
【标准号】:ASTMF316-2003
【标准状态】:现行
【国别】:
【发布日期】:2003
【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】:D19.08
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:孔隙尺寸;起泡点;孔隙;均值;流量测量;膜过滤器
【英文主题词】:pore;size;membrane;filters;nonfibrous
【摘要】:1.1Thesetestmethodscoverthedeterminationoftwooftheporesizepropertiesofmembranefilterswithmaximumporesizesfrom0.1to15.0m.1.2TestMethodApresentsatestmethodformeasuringthemaximumlimitingporediameterofnonfibrousmembranes.Thelimitingdiameteristhediameterofacirclehavingthesameareaasthesmallestsectionofagivenpore().1.3TestMethodBmeasurestherelativeabundanceofaspecifiedporesizeinamembrane,definedintermsofthelimitingdiameter.1.4TheanalystshouldbeawarethatadequatecollaborativedataforbiasstatementsasrequiredbyPracticeD2777isnotprovided.Seetheprecisionandbiassectionfordetails.1.5Thisstandardmayinvolvehazardousmaterials,operations,andequipment.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:J77
【国际标准分类号】:59_080_70
【页数】:7P.;A4
【正文语种】:
【英文标准名称】:Metallicmaterials.
【原文标准名称】:金属材料
【标准号】:NFA03-356-1999
【标准状态】:作废
【国别】:法国
【发布日期】:1999-09-01
【实施或试行日期】:1999-09-20
【发布单位】:法国标准化协会(AFNOR)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:试验设备;力;金属;单轴向;静荷载;应力断裂试样;机械试验;拉伸强度;试验力;拉伸应变;拉伸试验机;应力;验证;金属材料;试验;材料试验机
【英文主题词】:
【摘要】:
【中国标准分类号】:H22
【国际标准分类号】:19_060;77_040_10
【页数】:14P;A4
【正文语种】:其他
【英文标准名称】:StandardTestMethodforDeterminationoftheUnitCellDimensionofaFaujasite-TypeZeolite
【原文标准名称】:八面沸石单位晶格尺寸的试验方法
【标准号】:ASTMD3942-2003(2008)
【标准状态】:现行
【国别】:美国
【发布日期】:2003
【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】:D32.05
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:atalyst;faujasite;unitcell;X-raydiffraction;zeolite;Faujasitecrystalzeolites;Unitcelldimension;X-raydiffractionanalysis;Zeolitecatalysts
【摘要】:ZeolitesYandX,particularlyforcatalystandadsorbentapplications,areamajorarticleofmanufactureandcommerce.Catalystsandadsorbentscomprisingthesezeolitesinvariousformsplusbinderandothercomponentshavelikewisebecomeimportant.Y-basedcatalystsareusedforfluidcatalyticcracking(FCC)andhydrocrackingofpetroleum,whileX-basedadsorbentsareusedfordesiccation,sulfurcompoundremoval,andairseparation.Theunitcelldimensionofafreshlysynthesizedfaujasite-typezeoliteisasensitivemeasureofcompositionwhich,amongotheruses,distinguishesbetweenthetwosyntheticfaujasite-typezeolites,XandY.ThepresenceofamatrixinaY-containingcatalystprecludesdeterminationofthezeoliteframeworkcompositionbydirectelementalanalysis.Usersofthetestmethodshouldbeawarethatthecorrelationbetweenframeworkcompositionandunitcelldimensionisspecifictoagivencationformofthezeolite.Steamorthermaltreatments,forexample,mayalterbothcompositionandcationform.Theusermustthereforedeterminethecorrelationthatpertainstohiszeolitecontainingsamples.Inaddition,onemayusethetestmethodsolelytodeterminetheunitcelldimension,inwhichcasenocorrelationisneeded.Othercrystallinecomponentsmaybepresentinthesamplewhosediffractionpatternmaycauseinterferencewiththeselectedfaujasite-structurediffractionpeaks.Ifthereisreasontosuspectthepresenceofsuchcomponents,thenafulldiffractometerscanshouldbeobtainedandanalyzedtoselectfaujasite-structurepeaksfreeofinterference.1.1Thistestmethodcoversthedeterminationoftheunitcelldimensionofzeoliteshavingthefaujasitecrystalstructure,includingsyntheticYandXzeolites,theirmodificationssuchasthevariouscationexchangeforms,andthedealuminized,decationated,andultrastableformsofY.Thesezeoliteshavecubicsymmetrywithaunitcellparameterusuallywithinthelimitsof24.2and25.0?/span>(2.42and2.50nm).1.2Thesamplesincludezeolitepreparationinthevariousforms,andcatalystsandadsorbentscontainingthesezeolites.Thezeolitemaybepresentinamountsaslowas5%,suchasinacrackingcatalyst.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:G74
【国际标准分类号】:71_100_40
【页数】:3P.;A4
【正文语种】:英语