ASTM_E_1999_-_11.pdf

Designation:E199911Standard 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.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 concentration ranges shown(Note 1):Concentration 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 0.08Tin0 to 0.140.004 to 0.14Titanium0 to 0.120.003 to 0.12Vanadium0 to 0.220.008 to 0.22AQuantitative range in accordance with Practice E1601.NOTE1The concentration ranges of the elements listed have beenestablished through cooperative testing of reference materials.Theseconcentration ranges can be extended by the use of suitable referencematerials.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 thickness 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 and health practices and determine the applica-bility of regulatory limitations prior to use.2.Referenced Documents2.1 ASTM Standards:2E135 Terminology Relating to Analytical Chemistry forMetals,Ores,and Related MaterialsE158 Practice for Fundamental Calculations to ConvertIntensities into Concentrations in Optical Emission Spec-trochemical Analysis(Withdrawn 2004)3E172 Practice for Describing and Specifying the ExcitationSource in Emission SpectrochemicalAnalysis(Withdrawn2001)3E305 Practice for Establishing and Controlling AtomicEmission Spectrochemical Analytical CurvesE351 Test Methods for ChemicalAnalysis of Cast IronAllTypesE406 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-trometryE1019 Test Methods for Determination of Carbon,Sulfur,Nitrogen,and Oxygen in Steel,Iron,Nickel,and CobaltAlloys by Various Combustion and Fusion TechniquesE1329 Practice for 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 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 E01.01 on Iron,Steel,and Ferroalloys.Current edition approved May 15,2011.Published July 2011.Originallyapproved in 1999.Last previous edition approved in 2004 as E1999 99(2004).DOI:10.1520/E1999-112For 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.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 E1806 Practice for Sampling Steel and Iron for Determina-tion of Chemical Composition2.2 Other Documents:MNL 7A Manual on Presentation of Data and Control ChartAnalysis43.Terminology3.1 Definitions For definitions of terms used in this testmethod,refer to Terminology E135.4.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 concentration.4.2 Carbon,phosphorus,sulfur and tin emit in the vacuumultraviolet region.The absorption of the radiation by air in thisregion is overcome by flushing the spark chamber with argonor argon-hydrogen gas mixture and either evacuating thespectrometer or filling the spectrometer with an inert gas suchas nitrogen or argon.A capacitor discharge is producedbetween the flat,ground surface of the disk specimen and aconically shaped electrode.The discharge is terminated at apredetermined intensi