1、Designation:D445617Standard Test Methods forPhysical and Chemical Properties of Powdered IonExchange Resins1This standard is issued under the fixed designation D4456;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last re
2、vision.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 powdered ion exchangeresins and are intended
3、for use in testing new materials.Thefollowing test methods are included:SectionsTest Method AParticle Size Distribution5 to 15Test Method BSolids Content16 to 231.2 The values stated in SI units are to be regarded asstandard.The values given in parentheses are mathematicalconversions to inch-pound u
4、nits 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
5、 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 Reco
6、m-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 WaterD2687 Practices for Sampling Particulate Ion-Exchange Ma-terialsD2777 Practice for Determinat
7、ion of Precision and Bias ofApplicable Test Methods of Committee D19 on WaterF322 Test Method for Determining the Quality of Calibra-tion Particles forAutomatic Particle Counters(Withdrawn1990)3F651 Method for Particle Counter Single-Point Calibrationby the Median Method(Withdrawn 1987)3F658 Practic
8、e for Calibration of a Liquid-Borne ParticleCounter Using an Optical System Based Upon LightExtinction(Withdrawn 2007)33.Terminology3.1 Definitions:3.1.1 For definitions of terms used in these standards,referto Terminology D1129.3.2 Definitions of Terms Specific to This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 Certain terms
9、that relate specifically to these standardsare described as follows:3.2.2 powdered ion exchange resinan ion exchange resinthat has undergone post-manufacturing size reduction to lessthan 30 m.3.2.3 resin flocthat voluminous aggregate formed whenpowdered anion exchange resin and powdered cation excha
10、ngeresin are slurried together in an aqueous suspension.4.Purity of Reagents4.1 Reagent grade chemicals shall be used in all tests.Unless otherwise indicated,it is intended that all reagents shallconform to the specifications of the Committee on AnalyticalReagents of the American Chemical Society,4w
11、here suchspecifications are available.Other grades may be used,pro-vided it is first ascertained that the reagent is of sufficientlyhigh purity to permit its use without lessening the accuracy ofthe determination.1These test methods are under the jurisdiction of ASTM Committee D19 onWater and are th
12、e direct responsibility of Subcommittee D19.08 on Membranes andIon Exchange Materials.Current edition approved Aug.1,2017.Published August 2017.Originallyapproved in 1985.Last previous edition approved in 2009 as D4456 99(2009)1.DOI:10.1520/D4456-17.2For referenced ASTM standards,visit the ASTM webs
13、ite,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.3The last approved version of this historical standard is referenced onwww.astm.org.4Reagent Chemicals,American Chem
14、ical Society Specifications,AmericanChemical Society,Washington,DC.For Suggestions on the testing of reagents notlisted by the American Chemical Society,see Annual Standards for LaboratoryChemicals,BDH Ltd.,Poole,Dorset,U.K.,and the United States Pharmacopeiaand National Formulary,U.S.Pharmacopeial
15、Convention,Inc.(USPC),Rockville,MD.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 Principl
16、es for theDevelopment of International Standards,Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade(TBT)Committee.1 4.2 Purity of WaterUnless otherwise indicated,referencesto water shall be understood to mean Type III reagent water,Specification D1193.TEST METHOD APARTICLE SIZEDISTRIBUTION5.Scope5.1 This test method covers the instrumental determinationof the particle-size distribution of powdered ion exchangeresins.6.Summary of Test Method6.1 A sample
