1、Designation: E350 12E350 18Standard Test Methods forChemical Analysis of Carbon Steel, Low-Alloy Steel, SiliconElectrical Steel, Ingot Iron, and Wrought Iron1This standard is issued under the fixed designation E350; the number immediately following the designation indicates the year oforiginal adopt
2、ion 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.This standard has been approved for use by agencies of the U.S. Department of Defense
3、.1. Scope1.1 These test methods cover the chemical analysis of carbon steels, low-alloy steels, silicon electrical steels, ingot iron, andwrought iron having chemical compositions within the following limits:Element Composition Range, %Aluminum 0.001 to 1.50Antimony 0.002 to 0.03Arsenic 0.0005 to 0.
4、10Bismuth 0.005 to 0.50Boron 0.0005 to 0.02Calcium 0.0005 to 0.01Cerium 0.005 to 0.50Chromium 0.005 to 3.99Cobalt 0.01 to 0.30Columbium (Niobium) 0.002 to 0.20Copper 0.005 to 1.50Lanthanum 0.001 to 0.30Lead 0.001 to 0.50Manganese 0.01 to 2.50Molybdenum 0.002 to 1.50Nickel 0.005 to 5.00Nitrogen 0.000
5、5 to 0.04Oxygen 0.0001 to 0.03Phosphorus 0.001 to 0.25Selenium 0.001 to 0.50Silicon 0.001 to 5.00Sulfur 0.001 to 0.60Tin 0.002 to 0.10Titanium 0.002 to 0.60Tungsten 0.005 to 0.10Vanadium 0.005 to 0.50Zirconium 0.005 to 0.151.2 The test methods in this standard are contained in the sections indicated
6、 as follows:SectionsAluminum, Total, by the 8-Quinolinol GravimetricMethod(0.20 % to 1.5 %)124 131Aluminum, Total, by the 8-QuinolinolSpectrophotometricMethod (0.003 % to 0.20 %)76 86Aluminum, Total or Acid-Soluble, by the Atomic Ab-sorptionSpectrometry Method(0.005 % to 0.20 %)308 317Antimony by th
7、e Brilliant Green SpectrophotometricMethod (0.0002 % to 0.030 %)142 1511 These test methods are under the jurisdiction ofASTM Committee E01 on Analytical Chemistry for Metals, Ores, and Related Materials and are the direct responsibilityof Subcommittee E01.01 on Iron, Steel, and Ferroalloys.Current
8、edition approved Aug. 15, 2012March 15, 2018. Published September 2012May 2018. Originally approved in 1968. Last previous edition approved in 20052012as E350 95 (2005)E350 12.1. DOI: 10.1520/E0350-12.10.1520/E0350-18.This document is not an ASTM standard and is intended only to provide the user of
9、an ASTM standard an indication of what changes have been made to the previous version. Becauseit may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current versionof the standard as publ
10、ished by ASTM is to be considered the official document.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States1SectionsBismuth by the Atomic Absorption SpectrometryMethod (0.02 % to 0.25 %)298 307Boron by the Distillation-CurcuminSpectrophot
11、ometricMethod (0.0003 % to 0.006 %)208 219Calcium by the Direct-Current Argon Plasma AtomicEmission Spectroscopy Method(0.0005 % to 0.010 %)289 297Carbon, Total, by the Combustion Gravimetric Method(0.05 % to1.80 %)Discontinued 1995Cerium and Lanthanum by the Direct Current PlasmaAtomic Emission Spe
12、ctrometry Method(0.003 % to 0.50 % Cerium, 0.001 % to 0.30 %Lanthanum)249 257Chromium by the Atomic Absorption SpectrometryMethod (0.006 % to 1.00 %)220 229Chromium by the Peroxydisulfate Oxidation-TitrationMethod (0.05 % to 3.99 %)230 238Cobalt by the Nitroso-R Salt SpectrophotometricMethod (0.01 %
13、 to 0.30 %)53 62Copper by the Atomic Absorption SpectrometryMethod (0.004 % to 0.5 %)279 288Copper by the Neocuproine SpectrophotometricMethod (0.005 % to 1.50 %)114 123Lead by the Ion-ExchangeAtomic Absorption Spec-trometryMethod (0.001 %to 0.50 %)132 141Manganese by the Atomic Absorption Spectrome
14、tryMethod (0.005 % to 2.0 %)269 278Manganese by the Metaperiodate SpectrophotometricMethod (0.01 % to 2.5 %)9 18Manganese by the Peroxydisulfate-Arsenite TitrimetricMethod (0.10 % to 2.50 %)164 171Molybdenum by the Thiocyanate SpectrophotometricMethod (0.01 % to 1.50 %)152 163Nickel by the Atomic Ab
15、sorption SpectrometryMethod (0.003 % to 0.5 %)318 327Nickel by the Dimethylglyoxime GravimetricMethod (0.1 % to 5.00 %)180 187Nickel by the Ion-Exchange-Atomic-AbsorptionSpectrometryMethod(0.005 % to 1.00 %)188 197Phosphorus by the Alkalimetric Method(0.02 % to 0.25 %)172 179Phosphorus by the Molybd
16、enum BlueSpectrophotometricMethod (0.003 % to 0.09 %)19 30Silicon by the Molybdenum Blue SpectrophotometricMethod (0.01 % to 0.06 %)103 113Silicon by the Gravimetric TitrationMethod (0.05 % to 3.5 %)46 52Sulfur by the Combustion-Iodate Titration Method(0.005 % to 0.3 %)37 45Tin by the Sulfide-Iodome
17、tric TitrationMethod (0.01 % to 0.1 %)95 102Tin by the Solvent Extraction-Atomic AbsorptionSpectrometryMethod(0.002 % to 0.10 %)198 207Titanium, Total, by the DiantipyrylmethaneSpectrophotometricMethod(0.025 % to 0.30 %)258 268Vanadium by the Atomic Absorption SpectrometryMethod (0.006 % to 0.15 %)2
18、39 248SectionsAluminum, Total, by the 8-Quinolinol GravimetricMethod (0.20 %to 1.5 %)124131Aluminum, Total, by the 8-QuinolinolSpectrophotometric Method(0.003 % to 0.20 %)7686E350 182SectionsAluminum, Total or Acid-Soluble, by the AtomicAbsorption Spectrometry Method(0.005 % to 0.20 %)308317Antimony
19、 by the Brilliant Green SpectrophotometricMethod (0.0002 % to 0.030 %)142151Bismuth by the Atomic Absorption SpectrometryMethod (0.02 % to 0.25 %)298307Boron by the Distillation-CurcuminSpectrophotometric Method(0.0003 % to 0.006 %)208219Calcium by the Direct-Current Plasma AtomicEmission Spectromet
20、ry Method(0.0005 % to 0.010 %)289297Carbon, Total, by the Combustion Gravimetric Method(0.05 % to 1.80 %)Discontinued 1995Cerium and Lanthanum by the Direct Current PlasmaAtomic Emission Spectrometry Method(0.003 % to 0.50 % Cerium, 0.001 % to 0.30 %Lanthanum)249257Chromium by the Atomic Absorption
21、SpectrometryMethod (0.006 % to 1.00 %)220229Chromium by the Peroxydisulfate Oxidation-TitrationMethod (0.05 % to 3.99 %)230238Cobalt by the Nitroso-R Salt SpectrophotometricMethod (0.01 % to 0.30 %)5362Copper by the Sulfide Precipitation-IodometricTitration Method (Discontinued 1989)8794Copper by th
22、e Atomic Absorption SpectrometryMethod (0.004 % to 0.5 %)279288Copper by the Neocuproine SpectrophotometricMethod (0.005 % to 1.50 %)114123Lead by the Ion-ExchangeAtomic AbsorptionSpectrometry Method(0.001 % to 0.50 %)132141Manganese by the Atomic Absorption SpectrometryMethod (0.005 % to 2.0 %)2692
23、78Manganese by the Metaperiodate SpectrophotometricMethod (0.01 % to 2.5 %)918Manganese by the Peroxydisulfate-Arsenite TitrimetricMethod (0.10 % to 2.50 %)164171Molybdenum by the Thiocyanate SpectrophotometricMethod (0.01 % to 1.50 %)152163Nickel by the Atomic Absorption SpectrometryMethod (0.003 %
24、 to 0.5 %)318327Nickel by the Dimethylglyoxime GravimetricMethod (0.1 % to 5.00 %)180187Nickel by the Ion-Exchange-Atomic-AbsorptionSpectrometryMethod(0.005 % to 1.00 %)188197Nitrogen by the Distillation-SpectrophotometricMethod (Discontinued 1988)6375Phosphorus by the Alkalimetric Method(0.02 % to
25、0.25 %)172179Phosphorus by the Molybdenum BlueSpectrophotometric Method(0.003 % to 0.09 %)1930Silicon by the Molybdenum Blue SpectrophotometricMethod (0.01 % to 0.06 %)103113Silicon by the Gravimetric TitrationMethod (0.05 % to 3.5 %)4652Sulfur by the Gravimetric Method(Discontinued 1988)3136Sulfur
26、by the Combustion-Iodate Titration Method(0.005 % to 0.3 %) (Discontinued 2017)3745Tin by the Sulfide Precipitation-Iodometric TitrationMethod (0.01 % to 0.1 %)95102Tin by the Solvent Extraction-Atomic AbsorptionSpectrometry Method(0.002 % to 0.10 %)198207Titanium by the DiantipyrylmethaneSpectropho
27、tometricMethod(0.025 % to 0.30 %)258268Vanadium by the Atomic Absorption SpectrometryMethod (0.006 % to 0.15 %)239248E350 1831.3 Test methods for the determination of several elements not included in this standard can be found in Test Methods E1019.1.4 Some of the composition ranges given in 1.1 are
28、 too broad to be covered by a single test method and therefore this standardcontains multiple test methods for some elements. The user must select the proper test method by matching the information givenin the Scope and Interference sections of each test method with the composition of the alloy to b
29、e analyzed.1.5 The values stated in SI units are to be regarded as standard. In some cases, exceptions allowed in IEEE/ASTM SI 10 arealso used.1.6 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibilityof the user of this standa
30、rd to establish appropriate safety safety, health, and healthenvironmental practices and determine theapplicability of regulatory limitations prior to use. Specific hazards statements are given in Section 6 and in special “Warning”paragraphs throughout these test methods.1.7 This international stand
31、ard was developed in accordance with internationally recognized principles on standardizationestablished in the Decision on Principles for the Development of International Standards, Guides and Recommendations issuedby the World Trade Organization Technical Barriers to Trade (TBT) Committee.2. Refer
32、enced Documents2.1 ASTM Standards:2D1193 Specification for Reagent WaterE29 Practice for Using Significant Digits in Test Data to Determine Conformance with SpecificationsE50 Practices forApparatus, Reagents, and Safety Considerations for ChemicalAnalysis of Metals, Ores, and Related MaterialsE60 Pr
33、actice for Analysis of Metals, Ores, and Related Materials by SpectrophotometryE135 Terminology Relating to Analytical Chemistry for Metals, Ores, and Related MaterialsE173 Practice for Conducting Interlaboratory Studies of Methods for Chemical Analysis of Metals (Withdrawn 1998)3E319 Practice for t
34、he Evaluation of Single-Pan Mechanical BalancesE351 Test Methods for Chemical Analysis of Cast IronAll TypesE352 Test Methods for Chemical Analysis of Tool Steels and Other Similar Medium- and High-Alloy SteelsE353 Test Methods for Chemical Analysis of Stainless, Heat-Resisting, Maraging, and Other
35、Similar Chromium-Nickel-IronAlloysE354 Test Methods for Chemical Analysis of High-Temperature, Electrical, Magnetic, and Other Similar Iron, Nickel, andCobalt AlloysE882 Guide for Accountability and Quality Control in the Chemical Analysis LaboratoryE1019 Test Methods for Determination of Carbon, Su
36、lfur, Nitrogen, and Oxygen in Steel, Iron, Nickel, and Cobalt Alloys byVarious Combustion and Fusion TechniquesE1024 Guide for Chemical Analysis of Metals and Metal Bearing Ores by Flame Atomic Absorption Spectrophotometry(Withdrawn 2004)3E1097E1601 Guide for Determination ofVarious Elements by Dire
37、ct Current PlasmaAtomic Emission SpectrometryPractice forConducting an Interlaboratory Study to Evaluate the Performance of an Analytical MethodE1806 Practice for Sampling Steel and Iron for Determination of Chemical CompositionIEEE/ASTM SI 10 Standard for Use of the International System of Units (S
38、I): The Modern Metric System2.2 ISO Standard:4ISO 5725 Precision of Test MethodsDetermination of Repeatability and Reproducibility for Inter-Laboratory Tests3. Terminology3.1 For definitions of terms used in these test methods, refer to Terminology E135.4. Significance and Use4.1 These test methods
39、for the chemical analysis of metals and alloys are primarily intended as referee methods to test suchmaterials for compliance with compositional specifications, particularly those under the jurisdiction ofASTM CommitteesA01 onSteel, Stainless Steel, and RelatedAlloys andA04 on Iron Castings. It is a
40、ssumed that all who use these test methods will be trainedanalysts capable of performing common laboratory procedures skillfully and safely. It is expected that work will be performed ina properly equipped laboratory under appropriate quality control practices such as those described in Guide E882.5
41、. Apparatus, Reagents, and Instrumental Practices5.1 ApparatusSpecialized apparatus requirements are listed in the “Apparatus” Section in each test method.2 For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at serviceastm.org. For Annual Book of ASTM
42、Standardsvolume information, refer to the standards Document Summary page on the ASTM website.3 The last approved version of this historical standard is referenced on www.astm.org.4 Available from American National Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036, http:/www.
43、ansi.org.E350 1845.1.1 In the methods specifying spectrophotometric testing, the cells utilized to contain the reference material solutions and thesample solutions in spectrophotometers are referred to as “absorption cells.” Please note that the radiant energy passed through thecells can be measured
44、 as absorbance or transmittance. These methods refer to absorbance measurements. Refer to Practice E60 fordetails.5.2 Reagents:5.2.1 Purity of ReagentsUnless otherwise indicated, all reagents used in these test methods shall conform to the reagent gradespecifications of the American Chemical Society
45、.5 Other chemicals may be used, provided it is first ascertained that they are ofsufficiently high purity to permit their use without adversely affecting the expected performance of the determination, as indicatedin the Precision and Bias section.5.2.2 Purity of WaterUnless otherwise indicated, refe
46、rences to water shall be understood to mean reagent water as conformingto Type I or Type II of Specification D1193. Type III or IV may be used if they effect no measurable change in the blank or sample.6. Hazards6.1 For precautions to be observed in the use of certain reagents and equipment in these
47、 test methods, refer to Practices E50.7. Sampling7.1 For procedures for samplingto sample the material, reference shall be made refer to Practice E1806.8. Interlaboratory Studies and Rounding Calculated Values8.1 These test methods have been evaluated using Practice E173 or ISO 5725.8.1.1 Practice E
48、173 has been replaced by Practice E1601. The reproducibility, R2, of Practice E173 corresponds to thereproducibility index, R, of Practice E1601. The repeatability, R1, of Practice E173 corresponds to the repeatability index, r, ofPractice E1601.8.2 Calculated values shall be rounded to the desired
49、number of places in accordanceRounding of test results obtained usingthese test methods shall be performed as directed in Practice E29with the Rounding Method of Practice, Rounding Method, unlessan alternative E29.rounding method is specified by the customer or applicable material specification.MANGANESE BY THE METAPERIODATE SPECTROPHOTOMETRIC METHOD9. Scope9.1 This test method covers the determination of manganese in compositions from 0.01 % to 2.5 %.9. Scope9.1 This test
