1、Designation:E237113Standard Test Method forAnalysis of Titanium and Titanium Alloys by Direct CurrentPlasma and Inductively Coupled Plasma Atomic EmissionSpectrometry(Performance-Based Test Methodology)1This standard is issued under the fixed designation E2371;the number immediately following the de
2、signation 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 method describes the analysis
3、of titanium andtitanium alloys,such as specified by committee B10,byinductively coupled plasma atomic emission spectrometry(ICP-AES)and direct current plasma atomic emission spec-trometry(DCP-AES)for the following elements:ElementApplicationRange(wt.%)QuantitativeRange(wt.%)Aluminum080.009 to 8.0Bor
4、on00.040.0008 to 0.01Cobalt0-10.006 to 0.1Chromium050.005 to 4.0Copper00.60.004 to 0.5Iron030.004 to 3.0Manganese00.040.003 to 0.01Molybdenum080.004 to 6.0Nickel010.001 to 1.0Niobium0-60.008 to 0.1Palladium0-0.30.02 to 0.20Ruthenium0-0.50.004 to 0.10Silicon00.50.02 to 0.4Tantalum0-10.01 to 0.10Tin04
5、0.02 to 3.0Tungsten0-50.01 to-0.10Vanadium0150.01 to 15.0Yttrium00.040.001 to 0.004Zirconium050.003 to 4.01.2 This test method has been interlaboratory tested for theelements and ranges specified in the quantitative range part ofthe table above.It may be possible to extend this test methodto other e
6、lements or broader mass fraction ranges as shown inthe application range part of the table above provided that testmethod validation is performed that includes evaluation ofmethod sensitivity,precision,and bias.Additionally,the vali-dation study shall evaluate the acceptability of sample prepa-ratio
7、n methodology using reference materials or spike recov-eries or both.Guide E2857 provides information on validationof analytical methods for alloy analysis.1.3 Because of the lack of certified reference materials(CRMs)containing bismuth,hafnium,and magnesium,theseelements were not included in the sc
8、ope or the interlaboratorystudy(ILS).It may be possible to extend the scope of this testmethod to include these elements provided that method vali-dation includes the evaluation of method sensitivity,precision,and bias during the development of the testing method.1.4 UnitsThe values stated in SI uni
9、ts are to be regardedas the standard.No other units of measurement are included inthis 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 prac
10、tices and determine the applica-bility of regulatory limitations prior to use.Specific safetyhazards statements are given in Section 9.2.Referenced Documents2.1 ASTM Standards:2D1193 Specification for Reagent WaterE50 Practices for Apparatus,Reagents,and Safety Consid-erations for Chemical Analysis
11、of Metals,Ores,andRelated MaterialsE135 Terminology Relating to Analytical Chemistry forMetals,Ores,and Related MaterialsE1097 Guide for Determination of Various Elements byDirect Current Plasma Atomic Emission SpectrometryE1329 Practice for Verification and Use of Control Charts inSpectrochemical A
12、nalysisE1479 Practice for Describing and Specifying Inductively-Coupled Plasma Atomic Emission SpectrometersE1601 Practice for Conducting an Interlaboratory Study toEvaluate the Performance of an Analytical MethodE1763 Guide for Interpretation and Use of Results fromInterlaboratory Testing of Chemic
13、al Analysis Methods1This test method is under the jurisdiction of ASTM Committee E01 onAnalytical Chemistry for Metals,Ores,and Related Materials and is the directresponsibility of Subcommittee E01.06 on Ti,Zr,W,Mo,Ta,Nb,Hf,Re.Current edition approved June 15,2013.Published June 2013.Originallyappro
14、ved in 2004.Last previous edition approved in 2004 as E2371-04,which waswithdrawn in January 2013 and reinstated in June 2013.DOI:10.1520/E2371-13.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards vo
15、lume information,refer to the standards Document Summary page onthe ASTM website.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 E1832 Practice for Describing and Specifying a DirectCurrent Plasma Atomic Emission SpectrometerE2027 Practic
16、e for Conducting Proficiency Tests in theChemical Analysis of Metals,Ores,and Related MaterialsE2626 Guide for Spectrometric Analysis of Reactive andRefractory MetalsE2857 Guide for Validating Analytical Methods2.2 ISO Standards:3ISO/IEC 17025 Requirements for the Competence of Cali-bration and Test LaboratoriesISO Guide 31 Reference MaterialsContents of Certificatesand LabelsISO Guide 34 General Requirements for the Competence ofReference Material ProducersISO Guide 98-3 Uncertainty of measurem
