ASTM_D_3645_-_15.pdf

Designation:D364515An American National StandardStandard Test Methods forBeryllium in Water1This standard is issued under the fixed designation D3645;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 These test methods cover the determination of dissolvedand total recoverable beryllium in most waters and wastewa-ters:ConcentrationRangeSectionsTest Method AAtomic Absorption,Direct10 to 500 g/L7 to 17Test Method BAtomic Absorption,Graphite Furnace10 to 50 g/L18 to 261.2 The analyst should direct attention to the precision andbias statements for each test method.It is the users responsi-bility to ensure the validity of these test methods for waters ofuntested matrices.1.3 The values stated in SI units are to be regarded asstandard.The values given in parentheses are mathematicalconversions to inch-pound units that are provided for informa-tion only and are not considered standard.1.4 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 Section 12 and 24.4.2.Referenced Documents2.1 ASTM Standards:2D858 Test Methods for Manganese in WaterD1068 Test Methods for Iron in WaterD1129 Terminology Relating to WaterD1193 Specification for Reagent WaterD1687 Test Methods for Chromium in WaterD1688 Test Methods for Copper in WaterD1691 Test Methods for Zinc in WaterD1886 Test Methods for Nickel in WaterD2777 Practice for Determination of Precision and Bias ofApplicable Test Methods of Committee D19 on WaterD3370 Practices for Sampling Water from Closed ConduitsD3557 Test Methods for Cadmium in WaterD3558 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 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 these test methods,refer to Terminology D1129.3.2 Definitions of Terms Specific to This Standard:3.2.1 total recoverable beryllium,na descriptive termrelating to the beryllium forms recovered in the acid-digestionprocedure specified in these test methods.4.Significance and Use4.1 These test methods are significant because the concen-tration of beryllium in water must be measured accurately inorder to evaluate potential health and environmental effects.5.Purity of Reagents5.1 Reagent grade chemicals shall be used in all tests.Unless otherwise indicated,it is intended that all reagents shallconform to the specifications of the Committee on AnalyticalReagents of the American Chemical Society,where such1These 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 Feb.1,2015.Published March 2015.Originallyapproved in 1978.Last previous edition approved in 2008 as D3645 08.DOI:10.1520/D3645-15.2For 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 States1 specifications are available.3Other grades may be used,pro-vided it is first ascertained that the reagent is sufficiently highin purity to permit its use without lessening the accuracy of thedetermination.5.2 Unless otherwise indicated,reference to water shall beunderstood to mean reagent water conforming to SpecificationD1193,Type I.Other reagent water types may be usedprovided it is first ascertained that the water is of sufficientlyhigh purity to permit its use without adversely affecting thebias and precision of the test method.Type II water wasspecified at the time of round robin testing of this test method.6.Sampling6.1 Collect the samples in accordance with PracticesD3370.The holding time for samples may be calculated inaccordance with Practice D4841.6.2 Preserve samples with HNO3(sp gr 1.42),adding about2 mL/L,to a pH of 2 or less immediately at the time ofcollection.If only dissolved beryllium is to be determined,filter the sa