1、Designation:D355717Standard Test Methods forCadmium in Water1This standard is issued under the fixed designation D3557;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 ye
2、ar of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope*1.1 These test methods cover the determination of dissolvedand total recoverable cadmium in water and wastewater byatomic-absorption spectrophotometry and differential pulseanodic
3、stripping voltammetry.2Section 44 on Quality Controlpertains to these test methods.Four test methods are includedas follows:ConcentrationRangeSectionsTest Method AAtomic Absorption,Direct0.05 to 2.0mg/L7 to 15Test Method BAtomic Absorption,Chelation-Extraction5 to 200 g/L16 to 24Test Method CDiffere
4、ntial PulseAnodic Stripping Voltammetry1 to 100 g/L25 to 34Test Method DAtomic Absorption,Graphite Furnace2 to 10 g/L35 to 431.2 Test Method B can be used to determine cadmium inbrines.It is the users responsibility to ensure the validity ofthese test methods for waters of untested matrices.1.3 ICP-
5、MS or ICP-AES may also be appropriate but at ahigher instrument cost.See Test Methods D5673 and D1976.1.4 The values stated in SI units are to be regarded asstandard.The values given in parentheses are mathematicalconversion to inch-pound units that are provided for informa-tion only and are not con
6、sidered 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-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.1
7、.6 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 T
8、rade(TBT)Committee.2.Referenced Documents2.1 ASTM Standards:3D858 Test Methods for Manganese in WaterD1066 Practice for Sampling SteamD1068 Test Methods for Iron in WaterD1129 Terminology Relating to WaterD1193 Specification for Reagent WaterD1687 Test Methods for Chromium in WaterD1688 Test Methods
9、 for Copper in WaterD1691 Test Methods for Zinc in WaterD1886 Test Methods for Nickel in 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 W
10、aterD3370 Practices for Sampling Water from Closed ConduitsD3558 Test Methods for Cobalt in WaterD3559 Test Methods for Lead in WaterD3919 Practice for Measuring Trace Elements in Water byGraphite Furnace Atomic Absorption SpectrophotometryD4841 Practice for Estimation of Holding Time for WaterSampl
11、es 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 Defin
12、itions: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
13、calibration verification,na solution(orset of solutions)of known concentration used to verify freedom1These test methods are under the jurisdiction of ASTM Committee D19 onWater and are the direct responsibility of Subcommittee D19.05 on InorganicConstituents in Water.Current edition approved June 1
14、,2017.Published June 2017.Originallyapproved in 1977.Last previous edition approved in 2012 as D3557 12.DOI:10.1520/D3557-17.2Platte,J.A.,and Marcy,V.M.,“ANew Tool for the Water Chemist,”IndustrialWater Engineering,May 1965.3For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact
15、 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 Conshohoc
16、ken,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 from excessive instrumental drift;the concentration is to coverthe range of calibration curve.3.2.3 SCE,nsaturated calomel electrode.3.2.4 spiking soluti
