ASTM D4607-1994(2006) 活性碳碘值测定的标准试验方法

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【英文标准名称】:StandardTestMethodforDeterminationofIodineNumberofActivatedCarbon
【原文标准名称】:活性碳碘值测定的标准试验方法
【标准号】:ASTMD4607-1994(2006)
【标准状态】:现行
【国别】:
【发布日期】:1994
【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】:D28.02
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:碘值;碳;测定;活性碳;试验
【英文主题词】:absorptionisotherm;Iodineadsorptionnumber;Isothermtechniques;porosity;titration;unusedcarbon;iodinenumberofactivatedcarbon,test;activatedcarbon;iodinenumber,test
【摘要】:Theiodinenumberisarelativeindicatorofporosityinanactivatedcarbon.Itdoesnotnecessarilyprovideameasureofthecarbonrsquo;abilitytoabsorbotherspecies.Iodinenumbermaybeusedasanapproximationofsurfaceareaforsometypesofactivatedcarbons(seeTestMethodC819).However,itmustberealizedthatanyrelationshipbetweensurfaceareaandiodinenumbercannotbegeneralized.Itvarieswithchangesincarbonrawmaterial,processingconditions,andporevolumedistribution(seeDefinitionsD2652).Thepresenceofadsorbedvolatiles,sulfur;andwaterextractablesmayaffectthemeasurediodinenumberofanactivatedcarbon.1.1Thistestmethodcoversthedeterminationoftherelativeactivationlevelofunusedorreactivatedcarbonsbyadsorptionofiodinefromaqueoussolution.Theamountofiodineabsorbed(inmilligrams)by1gofcarbonusingtestconditionslistedhereiniscalledtheiodinenumber.1.2Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.SpecifichazardstatementsaregiveninSection7.
【中国标准分类号】:G76
【国际标准分类号】:71_040_30
【页数】:5P.;A4
【正文语种】: