ASTM_D_1976_-_12.pdf

Designation:D197612Standard Test Method forElements in Water by Inductively-Coupled Argon PlasmaAtomic Emission Spectroscopy1This standard is issued under the fixed designation D1976;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.Scope*1.1 This test method covers the determination of dissolved,total-recoverable,or total elements in drinking water,surfacewater,domestic,or industrial wastewaters.2,31.2 It is the users responsibility to ensure the validity of thetest method for waters of untested matrices.1.3 Table 1 lists elements for which this test method applies,with recommended wavelengths and typical estimated instru-mental detection limits using conventional pneumatic nebuli-zation.4Actual working detection limits are sample dependentand as the sample matrix varies,these detection limits may alsovary.In time,other elements may be added as more informa-tion becomes available and as required.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 of regulatory limitations prior to use.For specific hazardstatements,see Note 2 and Section 9.2.Referenced Documents2.1 ASTM Standards:5D1066 Practice for Sampling SteamD1129 Terminology Relating to WaterD1193 Specification for Reagent WaterD2777 Practice for Determination of Precision and Bias ofApplicable Test Methods of Committee D19 on WaterD3370 Practices for Sampling Water from Closed ConduitsD4841 Practice for Estimation of Holding Time for WaterSamples Containing Organic and Inorganic ConstituentsD5810 Guide for Spiking into Aqueous SamplesD5847 Practice for Writing Quality Control Specificationsfor Standard Test Methods for Water Analysis3.Terminology3.1 DefinitionsFor definitions of other terms used in thistest method,refer to Terminology D1129.3.2 Definitions of Terms Specific to This Standard:3.2.1 calibration blank,na volume of water containingthe same acid matrix as the calibration standards(see 11.1).3.2.2 calibration standards,na series of known standardsolutions used by the analyst for calibration of the instrument(preparation of the analytical curve)(see 8.11).3.2.3 instrumental detection limit,nthe concentrationequivalent to a signal,due to the analyte,that is equal to threetimes the standard deviation of a series of ten replicatemeasures of a reagent-blank signal at the same wavelength.3.2.4 laboratory control sample,na solution with thecertified concentration(s)of the analytes.3.2.5 reagent blank,na volume of water containing thesame matrix as the calibration standards,carried through theentire analytical procedure.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 March 1,2012.Published March 2012.Originallyapproved in 1991.Last previous edition approved in 2007 as D1976 07.DOI:10.1520/D1976-12.2The detailed report of EPA Method Study 27,Method 200.7 is available fromthe National Technical Information Service,5285 Port Royal Road,Springfield,VA.A summary of the project is available from the U.S.Environmental ProtectionAgency,Environmental Monitoring and Support Laboratory,Cincinnati,OH.3Fishman,M.J.and Friedman,L.,“Methods for Determination of InorganicSubstances in Water and Fluvial Sediments”,U.S.Geological Survey Techniques ofWater-Resources Investigations,Book 5,Chapter D1066,Open File Report 85-495,1985,p.659671.4Winge,R.K.,Fassel,V.A.,Peterson,V.J.and Floyd,M.A.,“InductivelyCoupled Plasma-Atomic Emission Spectroscopy,”An Atlas of Spectral Information,Elsevier Science Publishing Co.,Inc.,New York,NY,1985.5For 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 States1 3.2.6 total,nthe concentration determined on an unfilteredsample following vigorous digestion(see 12.3).3.2.7 total-recoverable,adja term relating to elementforms that are determinable by the digestion method that isincluded in this procedure(see 12.2).4.Summary of Test Method4.1 Elements are determined,either sequentially orsimultaneously,by inductively-coupled argon plasma opticalemission spectroscopy.4.2 A background correction technique may be used