1、Designation:D554216Standard Test Methods forTrace Anions in High Purity Water by Ion Chromatography1This standard is issued under the fixed designation D5542;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A
2、 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 trace(g/L)levels of fluoride,acetate,formate,chloride,phosphate,and sulfate in high purity w
3、ater using ion chromatography incombination with sample preconcentration.Other anions,suchas bromide,nitrite,nitrate,sulfite,and iodide can be deter-mined by this method.However,since they are rarely presentin significant concentrations in high purity water,they are notincluded in this test method.T
4、wo test methods are presentedand their ranges of application,as determined by a collabora-tive study,are as follows:Range Tested(g/L Added)Limit of DetectionA(Single Operator)(g/L)SectionsTest Method A:716Chloride0240.8Phosphate039BSulfate0551.8Test Method B:1724Fluoride0140.7Acetate04146.8Formate03
5、465.6ALimit of detection is lowest measurable concentration not reportable as zero at99%level of confidence as per EPRI study as cited in Sections 16 and 24.BInsufficient data to calculate limit of detection.1.2 It is the users responsibility to ensure the validity ofthese test methods for waters of
6、 untested matrices.1.3 The common practical range of Test Method A is asfollows:chloride,1 to 100 g/L,phosphate,3 to 100 g/L,andsulfate,2 to 100 g/L.1.4 The common practical range of Test Method B is asfollows:fluoride,1 to 100 g/L,acetate,10 to 200 g/L,andformate,5 to 200 g/L.1.5 The values stated
7、in SI units are to be regarded asstandard.No other units of measurement are included in thisstandard.1.6 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 and health
8、 practices and determine the applica-bility of regulatory limitations prior to use.2.Referenced Documents2.1 ASTM Standards:2D1066 Practice for Sampling SteamD1129 Terminology Relating to WaterD1192 Guide for Equipment for Sampling Water and Steamin Closed Conduits(Withdrawn 2003)3D1193 Specificatio
9、n for Reagent WaterD3370 Practices for Sampling Water from Closed ConduitsD3856 Guide for Management Systems in LaboratoriesEngaged in Analysis of WaterD4210 Practice for Intralaboratory Quality Control Proce-dures and a Discussion on Reporting Low-Level Data(Withdrawn 2002)3D4453 Practice for Handl
10、ing of High Purity Water SamplesD5810 Guide for Spiking into Aqueous SamplesD5847 Practice for Writing Quality Control Specificationsfor Standard 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
11、 of Terms Specific to This Standard:3.2.1 analytical columns,na combination of one or moreguard columns followed by one or more separator columnsused to separate the ions of interest.3.2.1.1 DiscussionIt should be remembered that all of thecolumns in series contribute to the overall capacity of thea
12、nalytical column set.3.2.2 breakthrough volume,nthe maximum sample vol-ume that can be passed through a concentrator column beforethe least tightly bound ion of interest is eluted.1These test methods are under the jurisdiction of ASTM Committee D19 onWater and are the direct responsibility of Subcom
13、mittee D19.03 on Sampling Waterand Water-Formed Deposits,Analysis of Water for Power Generation and ProcessUse,On-Line Water Analysis,and Surveillance of Water.Current edition approved June 1,2016.Published June 2016.Originallyapproved in 1994.Last previous edition approved in 2009 as D5542 04(2009)
14、.DOI:10.1520/D5542-16.2For 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.3The last approved version of this historica
15、l standard is referenced onwww.astm.org.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 3.2.3 concentrator column,nan ion exchange columnused to concentrate the ions of interest and thereby increasemethod sensitivity.3.2.4 eluant,nthe ion
16、ic mobile phase used to transport thesample through the exchange column.3.2.5 guard column,na column used before the separatorcolumn to protect it from contaminants,such as particulatematter or irreversibly retained materials.3.2.6 ion chromatography,na form of liquid chromatog-raphy in which ionic constituents are separated by ion ex-change followed by a suitable detection means.3.2.7 resolution,nthe ability of an analytical column toseparate constituents under specific test conditions.3.2.8 se
