ASTM_D_3373_-_17.pdf

Designation:D337317Standard Test Method forVanadium in Water1This standard is issued under the fixed designation D3373;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.This standard has been approved for use by agencies of the U.S.Department of Defense.1.Scope*1.1 This test method covers the determination of dissolvedand total recoverable vanadium in most waters and wastewaterby graphite furnace atomic absorption spectrophotometry.1.2 The optimum range of this test method is 10 to 200 g/Lof vanadium based on a 20-L sample size.Concentrationshigher than 200 g/L may be determined by proper dilution ofsample.A detection level as low as 4 g/L of vanadium hasbeen reported.1.3 This test method has been used successfully withreagent water,lake water,tap water,river water,condensatefrom a medium Btu coal gasification process,and well water.It is the users responsibility to ensure the validity of this testmethod for waters of untested matrices.1.4 The values stated in SI units are to be regarded asstandard.No other units of measurement are included in thisstandard.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-priate safety and health practices and determine the applica-bility or regulatory limitations prior to use.1.6 Former Test Method A(Catalytic)was discontinued.Refer to Appendix X1 for historical information.1.7 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:2D1066 Practice for Sampling SteamD1129 Terminology Relating to WaterD1193 Specification for Reagent WaterD1976 Test Method for Elements in Water by Inductively-Coupled Argon Plasma Atomic Emission SpectroscopyD2777 Practice for Determination of Precision and Bias ofApplicable Test Methods of Committee D19 on WaterD3370 Practices for Sampling Water from Closed ConduitsD3919 Practice for Measuring Trace Elements in Water byGraphite Furnace Atomic Absorption SpectrophotometryD4841 Practice for Estimation of Holding Time for WaterSamples Containing Organic and Inorganic ConstituentsD5673 Test Method for Elements in Water by InductivelyCoupled PlasmaMass SpectrometryD5810 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 of Terms Specific to This Standard:3.2.1 continuing calibration blank,na solution containingno analytes(of interest)which is used to verify blank responseand freedom from carryover.3.2.2 continuing calibration verification,na solution(orset of solutions)of known concentration used to verify freedomfrom excessive instrumental drift;the concentration is to coverthe range of calibration curve.1This test method is under the jurisdiction of ASTM Committee D19 on Waterand is the direct responsibility of Subcommittee D19.05 on Inorganic Constituentsin Water.Current edition approved June 1,2017.Published June 2017.Originallyapproved in 1975.Last previous edition approved in 2012 as D3373 12.DOI:10.1520/D3373-17.2For 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.*A Summary of Changes section appears at the end of this standardCopyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.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 3.2.3 total recoverable vanadium,na descriptive termrelating to the metal forms of vanadium recovered in theacid-digestion procedure specified in this test standard.4.Summary of Test Method4.1 Vanadium is determined by an atomic absorption spec-trophotometer utilizing a graphite furnace for sample atomiza-tion.4.2 Asample volume of several microlitres,depending uponthe concentration of the analyte,is transferred to a graphitetube housed within an electrical furnace and the system isheated in an inert or reducing atmosphere.The sample isevaporated to dryness,c