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【英文标准名称】:StandardTestMethodsforPhysicalandChemicalPropertiesofParticulateIon-ExchangeResins
【原文标准名称】:粒状离子交换树脂的物理化学特性的标准试验方法
【标准号】:ASTMD2187-1994(2009)e1
【标准状态】:现行
【国别】:美国
【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】:D19.08
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:anionresins;cationresins;exchangecapacity;ionexchange;Cationexchangecapacity;Anionexchangeresins;Chlorideanalysis--waterapplications;Density;Exchangecapacity;Ionexchangematerials/applications;Particleanalysis--water;Salt-splitt
【摘要】:Theionicformofanion-exchangematerialaffectsbothitsequivalentmassanditsequilibriumwatercontent.Theseinturninfluencethenumericalvaluesobtainedinexchangecapacitydeterminations,indensitymeasurements,andinthesizeoftheparticles.Toprovideauniformbasisforcomparison,therefore,thesampleshouldbeconvertedtoaknownionicformbeforeanalysis.Thisprocedureprovidesfortheconversionofcation-exchangematerialstothesodiumformandanion-exchangematerialstothechlorideformpriortoanalysis.Theseformsarechosensincetheypermitsamplestobeweighedanddriedwithoutconcernforaircontaminationordecomposition.Ifotherionicformsareusedthisfactshouldbenotedinreportingtheresults.1.1Thesetestmethodscoverthedeterminationofthephysicalandchemicalpropertiesofion-exchangeresinswhenusedforthetreatmentofwater.Theyareintendedforuseintestingbothnewandusedmaterials.Thefollowingthirteentestmethodsareincluded:1.2ThevaluesstatedinSIunitsaretoberegardedasthestandard.Theinch-poundunitsgiveninparenthesesareforinformationonly.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.SpecificprecautionarystatementsaregiveninSection10.8.
【中国标准分类号】:G32
【国际标准分类号】:71_100_40
【页数】:19P.;A4
【正文语种】:英语