1、Designation:D658118Standard Test Methods forBromate,Bromide,Chlorate,and Chlorite in Drinking Waterby Suppressed Ion Chromatography1This standard is issued under the fixed designation D6581;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revi
2、sion,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.Scope*1.1 These multi-test methods cover the determination of theoxyhalideschlorite,bromate,and chlorate,and bromid
3、e,inraw water,finished drinking water and bottled(non-carbonated)water by chemically and electrolytically sup-pressed ion chromatography.The ranges tested using these testmethods for each analyte were as follows:RangeSectionsTest Method A:Chemically SuppressedIon Chromatography8 to 20Chlorite5 to 50
4、0 g/LBromate1 to 25 g/LBromide5 to 250 g/LChlorate5 to 500 g/LTest Method B:ElectrolyticallySuppressed IonChromatography21 to 31Chlorite20 to 1000 g/LBromate1 to 30 g/LBromide20 to 200 g/LChlorate20 to 1000 g/L1.1.1 The upper limits may be extended by appropriatesample dilution or by the use of a sm
5、aller injection volume.Other ions of interest,such as fluoride,chloride,nitrite,nitrate,phosphate,and sulfate may also be determined using these testmethods.However,analysis of these ions is not the object ofthese test methods.1.2 It is the users responsibility to ensure the validity ofthese test me
6、thods for waters of untested matrices.1.3 These test methods are technically equivalent with PartB of U.S.EPA Method 300.1,2titled“The Determination ofInorganic Anions in Drinking Water by Ion Chromatography.”1.4 The values stated in SI units are to be regarded asstandard.The values given in parenth
7、eses are mathematicalconversions to inch-pound units that are provided for informa-tion only and are not considered standard.1.5 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-
8、priate safety,health,and environmental practices and deter-mine the applicability of regulatory limitations prior to use.1.6 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for theDevelo
9、pment of International Standards,Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade(TBT)Committee.2.Referenced Documents2.1 ASTM Standards:3D1129 Terminology Relating to WaterD1193 Specification for Reagent WaterD2777 Practice for Determination of Precision
10、 and Bias ofApplicable Test Methods of Committee D19 on WaterD3370 Practices for Sampling Water from Closed ConduitsD3856 Guide for Management Systems in LaboratoriesEngaged in Analysis of WaterD5810 Guide for Spiking into Aqueous SamplesD5847 Practice for Writing Quality Control Specificationsfor S
11、tandard Test Methods for Water Analysis3.Terminology3.1 Definitions:3.1.1 For definitions of terms used in this standard,refer toTerminology D1129.3.2 Definitions of Terms Specific to This Standard:3.2.1 analytical column,nthe ion exchange column usedto separate the ions of interest according to the
12、ir retentioncharacteristics prior to detection.3.2.2 analytical column set,na combination of one ormore guard columns,followed by one or more analytical1These test methods are under the jurisdiction of ASTM Committee D19 onWater and are the direct responsibility of Subcommittee D19.05 on InorganicCo
13、nstituents in Water.Current edition approved May 1,2018.Published May 2018.Originallyapproved in 2000.Last previous edition approved in 2012 as D6581 12.DOI:10.1520/D6581-18.2U.S.EPA 300.1,Cincinnati,OH,1997.3For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer S
14、ervice at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.*A Summary of Changes section appears at the end of this standardCopyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-295
15、9.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 Bar
16、riers to Trade(TBT)Committee.1 columns used to separate the ions of interest.All of thecolumns in series then contribute to the overall capacity andresolution of the analytical column set.3.2.3 eluent,nthe ionic mobile phase used to transport thesample through the chromatographic system.3.2.4 guard column,na column used before the analyticalcolumn to protect it from contaminants,such as particulates orirreversibly retained material.3.2.5 ion chromatography,na form of liquid chromatog-raphy in wh
