ASTM_E_135_-_15a.pdf

Designation:E13515aStandard Terminology Relating toAnalytical Chemistry for Metals,Ores,and RelatedMaterials1This standard is issued under the fixed designation E135;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.Scope1.1 This is a compilation of terms commonly used inanalytical chemistry for metals,ores,and related materials.Terms that are generally understood or defined adequately inother readily available sources are either not included or theirsources are identified.1.2 A definition is a single sentence with additional infor-mation included in a discussion.1.3 Definitions identical to those published by anotherstandards organization or ASTM committee are identified withthe name of the organization or the identifying document andASTM committee.1.4 Definitions specific to a particular field(such as emis-sion spectrometry)are identified with an italicized introductoryphrase.2.Referenced Documents2.1 ASTM Standards:2E1914 Practice for Use of Terms Relating to the Develop-ment and Evaluation of Methods for Chemical AnalysisE2437 Practice for Designing and Validating Performance-Based Test Methods for the Analysis of Metals,Ores,andRelated Materials(Withdrawn 2014)3E2438 Practice for Implementing Standard PerformanceBased Test Methods for the Analysis of Metals,Ores,andRelated Materials(Withdrawn 2014)32.2 ISO Standard:4ISO Guide 30 Terms and Definitions Used in Connectionwith Reference Materials3.Significance and Use3.1 Definitions given in Section 4 are intended for use in allstandards on analytical chemistry for metals,ores,and relatedmaterials.The definitions should be used uniformly andconsistently.The purpose of this terminology is to promoteclear understanding and interpretation of the standards inwhich definitions are used.4.Terminology Definitionsaim interlaboratory uncertainty,nthe maximum deviation(95%confidence)to be allowed in the design of the totalinterlaboratory uncertainty of a test method,beginning withthe preparation of a homogeneous sample and ending with afinal report value to the client.E2437aim total intralaboratory uncertainty,nthe maximumdeviation(95%confidence)to be allowed in the design ofthe total intralaboratory uncertainty of a test method,begin-ning with the preparation of a homogeneous sample andending with a final report value to the client.aim uncertainty budget,nduring the development of astandard performance-based test method,the target alloca-tion of interlaboratory measurement uncertainty among spe-cific components of a measurement process that contributesignificantly to the overall deviation.The target allocation ismade by the task group and serves as guidance for interlabo-ratory test participants during method testing.E2437analytical curvesee calibration curve.analyte,nin methods of chemical analysis,the constituentdetermined by a chemical measurement process.E1914analytical gap,nin atomic emission spectrometry,the regionbetween two electrodes in which the specimen is excited andfrom which radiant energy is used for analysis.analytical line,nin atomic spectrometry,the particularwavelength of electromagnetic radiation used in determiningthe presence or concentration of an element.arc,condensedsee discharge,triggered capacitor.1This terminology is under the jurisdiction of ASTM Committee E01 onAnalytical Chemistry for Metals,Ores,and Related Materials and is the directresponsibility of Subcommittee E01.23 on Terminology and Editorial.Current edition approved July 1,2015.Published October 2015.Originallyapproved in 1958.Last previous edition approved in 2015 as E135 15.DOI:10.1520/E0135-15A.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.3The last approved version of this historical standard is referenced onwww.astm.org.4Available from American National Standards Institute(ANSI),25 W.43rd St.,4th Floor,New York,NY 10036,http:/www.ansi.org.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 noncapacitive ac arc,nin atomic emission spectrometry,aseries of separate electrical discharges,individually self-initiating or initiated separately by another means,in whicheach current pulse has a polarity that is reversed from theprevious one.arc linenot recommended,see atom line.atom line,nin atomic emission spectrometry,a spectral lineresulting from radiation emitted during electron transition asan excited atom returns to a lower energy level.atomic emission spectrometry(AES),npertaining to emis-sion spectrometry in the ultraviolet,visible,or infraredwavelength regions of the electromagnetic spectru