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【英文标准名称】:Metalliccoatings.Electroplatedcoatingsoftin-leadalloys.Specificationandtestmethods.
【原文标准名称】:金属镀层.锡铅合金电镀层.规范和试验方法
【标准号】:NFA91-082-1987
【标准状态】:现行
【国别】:法国
【发布日期】:1987-08-01
【实施或试行日期】:1987-08-20
【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】:分类系统;厚度测量;铅;锡合金;热处理;分类;试验;附着力试验;电解镀层;金属覆层;铅合金;规范;铅覆层
【英文主题词】:Adhesion;Classification;Classificationsystems;Coatings;Determination;Determinationofcontent;Electrodeposition;Lead;Metalcoatings;Specifications;Testing;Tests;Thickness;Tin;Tincoatings
【摘要】:
【中国标准分类号】:A29
【国际标准分类号】:25_220_40
【页数】:11P;A4
【正文语种】:其他


【英文标准名称】:StandardTestMethodforDeterminingMicroporeVolumeandZeoliteAreaofaCatalyst
【原文标准名称】:测定催化剂微孔体积和沸石面积的标准试验方法
【标准号】:ASTMD4365-1995(2008)
【标准状态】:现行
【国别】:美国
【发布日期】:1995
【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】:D32.01
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:catalyst;microporevolume;nitrogenadsorption;t-plot;zeolite;zeolitearea;Adsorption--petroleumproducts/applications;Area;Dead-spaceanalysis;Microporevolume;Nitrogenadsorption;t-Plot;Zeolitecatalysts
【摘要】:ThisgasadsorptionmethodcomplementstheX-rayprocedureofTestMethodD3906.ThistestmethodwillbeusefultolaboratoriesthatdonothaveX-raydiffractometers.Eachtestmethodcanbecalibratedbyuseofanappropriateseriesofmechanicalmixturestoprovidewhatmaybetermedpercentzeolite.Ifthereisdisorderinthezeolite,theadsorptionmethodwillyieldhighervaluesthantheX-raymethod.Thereversewillbetrueifsomezeolitepores(micropores)areblockedorfilled.1.1Thistestmethodcoversthedeterminationoftotalsurfaceareaandmesoporearea.Fromtheseresultsarecalculatedthezeoliteareaandmicroporevolumeofazeolitecontainingcatalyst.Themicroporevolumeisrelatedtothepercentzeoliteinthecatalyst.Thezeolitearea,anumberrelatedtothesurfaceareawithinthezeolitepores,mayalsobecalculated.Zeolitearea,however,isdifficulttointepretinphysicaltermsbecauseofthemannerinwhichnitrogenmoleculespackwithinthezeolite.1.2Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Foraspecificprecautionarystatement,seeNote3.
【中国标准分类号】:G74
【国际标准分类号】:71_040_30
【页数】:6P.;A4
【正文语种】:英语