1、Designation:D369717Standard Test Method forAntimony in Water1This standard is issued under the fixed designation D3697;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 This test method covers the determination of dissolvedand total recoverable antimony in water by atomic absorptionspectroscopy.21.2 This test method is applicable in the range
3、from 1 to 15g/L of antimony.The range may be extended by less scaleexpansion or by dilution of the sample.1.3 The precision and bias data were obtained on reagentwater,tap water,salt water,and two untreated wastewaters.The information on precision and bias may not apply to otherwaters.1.4 The values
4、 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 considered standard.1.5 This standard does not purport to address all of thesafety concerns,if any,associated with its
5、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.1.6 This international standard was developed in accor-dance with internationally recognized principles on standard-i
6、zation 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:3D1129 Terminology Relating to WaterD1193 Specification
7、for Reagent WaterD2777 Practice for Determination of Precision and Bias ofApplicable Test Methods of Committee D19 on WaterD3370 Practices for Sampling Water from Closed ConduitsD4691 Practice for Measuring Elements in Water by FlameAtomic Absorption SpectrophotometryD4841 Practice for Estimation of
8、 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 An
9、alysis3.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:3.2.1continuing calibration blank,na solution contain-ing no analytes(of interest)which is used to verify blankresponse and freedom fro
10、m carryover.3.2.2continuing 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.3.2.3 laboratory control sample,na solution with a certi-fied concentration o
11、f the antimony.3.2.4 total recoverable antimony,na descriptive termrelating to forms of antimony that are determinable by thedigestion method which is included in the procedure;someorganic compounds may not be completely recovered.4.Summary of Test Method4.1 Organic antimony-containing compounds are
12、 decom-posed by adding sulfuric and nitric acids and repeatedlyevaporating the sample to fumes of sulfur trioxide.Theantimony so produced,together with inorganic antimonyoriginally present,is subsequently reacted with potassiumiodide and stannous chloride,and finally with sodium borohy-dride to form
13、 stibine.The stibine is removed from solution byaeration and swept by a flow of nitrogen into a hydrogen flamewhere it is determined by atomic absorption at 217.6 nm.1This test method is under the jurisdiction of ASTM Committee D19 on Waterand is the direct responsibility of Subcommittee D19.05 on I
14、norganic Constituentsin Water.Current edition approved June 1,2017.Published June 2017.Originallyapproved in 1978.Last previous edition approved in 2012 as D3697 12.DOI:10.1520/D3697-17.2Platte,J.A.,and Marcy,V.M.,“ANew Tool for the Water Chemist,”IndustrialWater Engineering,IWEGA,May 1965.3For refe
15、renced 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
16、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 5.Significance and Use5.1 Because of the association with lead and arsenic inindustry,
