ASTM_D_5627_-_17.pdf

Designation:D562717Standard Test Method forWater Extractable Residue from Particulate Ion-ExchangeResins1This standard is issued under the fixed designation D5627;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 This test method covers the measurement of watersoluble extractable residue from particulate ion-exchange res-ins based on elevated temperature extraction and gravimetricdetermination of residue.1.2 The values stated in SI units are to be regarded asstandard.No other units of measurement are included in thisstandard.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.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 WaterD2187 Test Methods and Practices for Evaluating Physicaland Chemical Properties of Particulate Ion-ExchangeResinsD2687 Practices for Sampling Particulate Ion-Exchange Ma-terialsD2777 Practice for Determination of Precision and Bias ofApplicable Test Methods of Committee D19 on Water3.Terminology3.1 Definitions:3.1.1 For definitions of terms used in this standard,refer toTerminology D1129.4.Summary of Test Method4.1 A sample of particulate ion exchange material is con-tacted with water at an elevated temperature.After a specifiedcontact time,the concentration of soluble material in theaqueous phase is measured gravimetrically after filtration.5.Significance and Use5.1 The presence of water extractables in ion-exchangeresins can cause fouling of other materials downstream andcontamination of process water.The quantity of water extract-ables is sometimes used as a specification to indicate resinquality,and typical values are 0.01 to 0.1%.5.2 It is recognized that this test method may not remove allpotential sloughage products and does not measure volatilecompounds.More extensive extraction and identification ofcompounds may be needed in specific cases.6.Interferences6.1 The hygroscopic nature of some extracted compoundscan make it difficult to obtain a constant weight.Otherextraction times and temperatures may give results that are notcomparable to these.7.Apparatus7.1 Funnel,60 mL with coarse frit.7.2 Filtration assembly.7.3 Glass fiber filters,without binder,pre-rinsed with wa-ter.37.4 Weighing vesselPlatinum,nickel,or aluminum may beused so long as there is no attack by the sample and constantweight can be achieved.7.5 Water bath,for use at 60 6 1C.1This test method is under the jurisdiction of ASTM Committee D19 on Waterand is the direct responsibility of Subcommittee D19.08 on Membranes and IonExchange Materials.Current edition approved Nov.1,2017.Published November 2017.Originallyapproved in 1994.Last previous edition approved in 2009 as D5627 94(2009)1.DOI:10.1520/D5627-17.2For 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.3Gelman Type A/E,Millipore Type AP40,Whatman GF/C,or equivalent,havebeen found suitable for this purpose.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 8.Reagents8.1 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,where such specifications are available.4Other 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.8.2 Purity of WaterUnless otherwise indicated,referencesto water shall be understood to mean reagent water conformingto Specification D1193,Type I or II.9.Sampling9.1 Collect the sample in accordance with Practices D2687.In-service resins are ta