ASTM_D_2187_-_17.pdf

Designation:D218717Standard Test Methods and Practices forEvaluating Physical and Chemical Properties of ParticulateIon-Exchange Resins1This standard is issued under the fixed designation D2187;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 These test methods cover the determination of thephysical and chemical properties of ion-exchange resins whenused for the treatment of water.They are intended for use intesting both new and used materials.The following thirteen testmethods are included:SectionsTest Practice APretreatment6 10Test Method BWater Retention Capacity11 18Test Method CBackwashed and Settled Density19 26Test Method DParticle Size Distribution27 35Test Method ESalt-Splitting Capacity of Cation-Exchange Resins36 45Test Method FTotal Capacity of Cation-ExchangeResins46 55Test Method GPercent Regeneration of Hydrogen-Form Cation-Exchange Resins56 64Test Method HTotal and Salt-Splitting Capacity ofAnion-Exchange Resins65 73Test Practice IPercent Regeneration of Anion Ex-change Resins74 82Test Practice JIonic Chloride Content of Anion-Exchange Resins83 90Test Method KCarbonate Content of Anion-ExchangeResins91 99Test Method LSulfate Content of Anion ExchangeResins100 108Test Practice MTotal Anion Capacity of Anion-Exchange Resins109 1171.2 The values stated in SI units are to be regarded asstandard.The values given in parentheses are mathematicalconversions to inch-pound units that are provided for informa-tion only and are not considered standard.1.3 This standard does not purport to address all of thesafety concerns,if any,associated with its use.It is theresponsibility of the user of this standard to establish appro-priate safety,health and environmental practices and deter-mine the applicability of regulatory limitations prior to use.Specific precautionary statements are given in Section 10.8.1.4 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade(TBT)Committee.2.Referenced Documents2.1 ASTM Standards:2D1129 Terminology Relating to WaterD1193 Specification for Reagent WaterD1293 Test Methods for pH of WaterD2687 Practices for Sampling Particulate Ion-Exchange Ma-terialsD2777 Practice for Determination of Precision and Bias ofApplicable Test Methods of Committee D19 on WaterE11 Specification for Woven Wire Test Sieve Cloth and TestSieves3.Terminology3.1 Definitions:3.1.1 For definitions of terms used in these standards,referto Terminology D1129.3.2 Definitions of Terms Specific to This Standard:3.2.1 anion-exchange materialan ion-exchange materialcapable of the reversible exchange of negatively charged ions.3.2.2 cation-exchange materialan ion-exchange materialcapable of the reversible exchange of positively charged ions.3.2.3 ion-exchange resina synthetic organic ion-exchangematerial.3.2.4 mixed beda physical mixture of anion-exchangematerial and cation-exchange material.4.Reagents4.1 Purity of ReagentsReagent grade chemicals shall beused in all tests.Unless otherwise indicated,it is intended thatall reagents shall conform to the specifications of the Commit-tee on Analytical Reagents of the American Chemical Society,1These test methods and practices are under the jurisdiction of ASTM Commit-tee D19 on Water and are the direct responsibility of Subcommittee D19.08 onMembranes and Ion Exchange Materials.Current edition approved Aug.1,2017.Published August 2017.Originallyapproved in 1963.Last previous edition approved in 2009 as D2187 94(2009)1.DOI:10.1520/D2187-17.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United StatesThis international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade(TBT)Committee.1 where such specifications are available.3Other grades may beused,provided it is first ascertained that the reagent is ofsufficiently high purity to permit its use without lessening theaccuracy of the determination.4.2 Purity of WaterUnless otherwise indicated,referencesto water shall be understood to mean Type IV reagent waterdescribed in Specification D1193.5.Sampling5.1 Obtain a representative