ASTM_E_1835_-_14.pdf

Designation:E183514Standard Test Method forAnalysis of Nickel Alloys by Flame Atomic AbsorptionSpectrometry1This standard is issued under the fixed designation E1835;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 analysis of nickel alloys byflame atomic absorption spectrometry(FAAS)for the follow-ing elements:ElementCompostiton Range,%Aluminum0.2to 4.0Chromium0.01 to 4.0Cobalt0.01 to 4.0Copper0.01 to 4.0Iron0.1to 4.0Manganese0.1to 4.0Silicon0.2to 1.0Vanadium0.05 to 1.01.2 The composition ranges of these elements can beexpanded by the use of appropriate standards.1.3 The values stated in SI units are to be regarded asstandard.No other units of measurement are included in thisstandard.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 hazardsassociated with the use of this test method,see Practices E50and the warningstatements included in this test method.2.Referenced Documents2.1 ASTM Standards:2D1193 Specification for Reagent WaterE29 Practice for Using Significant Digits in Test Data toDetermine Conformance with SpecificationsE50 Practices for Apparatus,Reagents,and Safety Consid-erations for Chemical Analysis of Metals,Ores,andRelated MaterialsE135 Terminology Relating to Analytical Chemistry forMetals,Ores,and Related MaterialsE882 Guide for Accountability and Quality Control in theChemical Analysis LaboratoryE1601 Practice for Conducting an Interlaboratory Study toEvaluate the Performance of an Analytical MethodE1812 Practice for Optimization of Flame Atomic Absorp-tion Spectrometric Equipment(Withdrawn 2004)32.2 ISO Standards:4ISO 5725:1986 Precision of Test MethodsDeterminationof Repeatability and Reproducibility for a Standard TestMethod by Inter-laboratory TestsISO 7530 Parts 1 through 9Nickel AlloysFlame AtomicAbsorption Spectrometric Analysis3.Terminology3.1 DefinitionsFor definitions of terms used in this testmethod,refer to Terminology E135.4.Summary of Test Method4.1 The sample is dissolved in a mixture of HCl and HNO3.The solution is aspirated into an appropriate flame of an atomicabsorption spectrometer.The absorbance of the resonant lineenergy from the spectrum of the analyte is measured andcompared with that of calibration solutions.5.Significance and Use5.1 This test method is used for the analysis of nickel alloysamples by FAAS to check compliance with compositionalspecifications.It is assumed that all who use the procedure willbe trained analysts capable of performing common laboratoryprocedures skillfully and safely.It is expected that the workwill be performed in a properly equipped laboratory and thatproper waste disposal procedures will be followed.Appropriatequality control practices must be followed such as thosedescribed in Guide E882.1This test method is under the jurisdiction of ASTM Committee E01 onAnalytical Chemistry for Metals,Ores,and Related Materials and is the directresponsibility of Subcommittee E01.08 on Ni and Co and High TemperatureAlloys.Current edition approved Oct.1,2014.Published December 2014.Originallyapproved in 1996.Last previous edition approved in 2009 as E1835 09.DOI:10.1520/E1835-14.2For 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 5.2 Interlaboratory Studies(ILS)5,6International inter-laboratory studies were conducted by ISO/TC 155/SC4,Analy-sis of nickel alloys.Results were evaluated in accordance withISO 5725:1986 and restated to conform to Practice E1601.Themethod was published as ISO 7530,Parts 1 through 9.Thepublished ISO statistics are summarized separately for eachanalyte to correspond with Practice E1601.5.3 In this test method,some matrix modifiers are specified.However,other additives have come into common use sincethe original publication of this test method.These may beequally or more effective but have not been tested.It is theresponsibility of the user to validate the use of such additivesor the use of different dilutions,or both.6.Apparatus6.1 Flame Atomic Absorption Spectrometer,equipped withan appropriate background corrector,a signa