1、Designation:E199918Standard Test Method forAnalysis of Cast Iron by Spark Atomic EmissionSpectrometry1This standard is issued under the fixed designation E1999;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision
2、.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 test method covers the analysis of cast iron byspark atomic emission spectrometry for the following elementsin the ranges shown(Not
3、e 1):Ranges,%ElementsApplicable Range,%Quantitative Range,%ACarbon1.9 to 3.81.90to 3.8Chromium0 to 2.00.025 to 2.0Copper0 to 0.750.015 to 0.75Manganese0 to 1.80.03to 1.8Molybdenum0 to 1.20.01to 1.2Nickel0 to 2.00.02to 2.0Phosphorus0 to 0.40.005 to 0.4Silicon0 to 2.50.15to 2.5Sulfur0 to 0.080.01to 0.
4、08Tin0 to 0.140.004 to 0.14Titanium0 to 0.120.003 to 0.12Vanadium0 to 0.220.008 to 0.22AQuantitative range as directed in Practice E1601.NOTE1The ranges of the elements listed have been establishedthrough cooperative testing of reference materials.These ranges can beextended by the use of suitable r
5、eference materials.1.2 This test method covers analysis of specimens having adiameter adequate to overlap the bore of the spark standopening(to effect an argon seal).The specimen thicknessshould be sufficient to prevent overheating during excitation.Aheat sink backing may be used.The maximum thickne
6、ss islimited only by the height that the stand will permit.1.3 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,health,and environmental practices and deter-mine th
7、e applicability of regulatory limitations prior to use.1.4 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 issue
8、d by the World Trade Organization TechnicalBarriers to Trade(TBT)Committee.2.Referenced Documents2.1 ASTM Standards:2E29 Practice for Using Significant Digits in Test Data toDetermine Conformance with SpecificationsE135 Terminology Relating to Analytical Chemistry forMetals,Ores,and Related Material
9、sE305 Practice for Establishing and Controlling AtomicEmission Spectrochemical Analytical CurvesE406 Practice for Using Controlled Atmospheres in Spec-trochemical AnalysisE826 Practice for Testing Homogeneity of a Metal Lot orBatch in Solid Form by Spark Atomic Emission Spec-trometryE1329 Practice f
10、or Verification and Use of Control Charts inSpectrochemical AnalysisE1601 Practice for Conducting an Interlaboratory Study toEvaluate the Performance of an Analytical MethodE1763 Guide for Interpretation and Use of Results fromInterlaboratory Testing of Chemical Analysis Methods(Withdrawn 2015)3E180
11、6 Practice for Sampling Steel and Iron for Determina-tion of Chemical CompositionE2972 Guide for Production,Testing,and Value Assignmentof In-House Reference Materials for Metals,Ores,andOther Related Materials2.2 Other Documents:MNL 7 Manual on Presentation of Data and Control ChartAnalysis43.Termi
12、nology3.1 DefinitionsFor definitions of terms used in this testmethod,refer to Terminology E135.1This test method is under the jurisdiction of ASTM Committee E01 onAnalytical Chemistry for Metals,Ores,and Related Materials and is the directresponsibility of Subcommittee E01.01 on Iron,Steel,and Ferr
13、oalloys.Current edition approved April 15,2018.Published June 2018.Originallyapproved in 1999.Last previous edition approved in 2011 as E1999 11.DOI:10.1520/E1999-18.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book
14、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.4ASTM Manual Series,ASTM International,8th Edition,2010.Copyright ASTM International,100 Barr Harbor Drive,PO Box C7
15、00,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
16、 Trade Organization Technical Barriers to Trade(TBT)Committee.1 4.Summary of Test Method4.1 A capacitor discharge is produced between the flat,ground surface of the disk specimen and a conically shapedelectrode.The discharge is terminated at a predeterminedintensity of a selected iron line,or at a predetermined time,andthe relative radiant energies of the analytical lines are recordedand converted to mass fractions.4.2 Carbon,phosphorus,sulfur and tin emit in the vacuumultraviolet region.The abs
