ASTM E1019-2008 895 Standard Test Methods for Determination of Carbon Sulfur Nitrogen and Oxygen in Steel Iron Nickel and Cobalt Alloys by Various Combustion and Fusion Techniques《.pdf
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1、Designation: E 1019 08Standard Test Methods forDetermination of Carbon, Sulfur, Nitrogen, and Oxygen inSteel, Iron, Nickel, and Cobalt Alloys by VariousCombustion and Fusion Techniques1This standard is issued under the fixed designation E 1019; the number immediately following the designation indica
2、tes 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.This standard has been approved for use by agencies of t
3、he Department of Defense.1. Scope1.1 These test methods2cover the determination of carbon,sulfur, nitrogen, and oxygen, in steel and in iron, nickel, andcobalt alloys having chemical compositions within the follow-ing limits:Element Concentration Range, %Aluminum 0.001 to 18.00Antimony 0.002 to 0.03
4、Arsenic 0.0005 to 0.10Beryllium 0.001 to 0.05Bismuth 0.001 to 0.50Boron 0.0005 to 1.00Cadmium 0.001 to 0.005Calcium 0.001 to 0.05Carbon 0.001 to 4.50Cerium 0.005 to 0.05Chromium 0.005 to 35.00Cobalt 0.01 to 75.0Columbium 0.002 to 6.00Copper 0.005 to 10.00Hydrogen 0.0001 to 0.0030Iron 0.01 to 100.0Le
5、ad 0.001 to 0.50Magnesium 0.001 to 0.05Manganese 0.01 to 20.0Molybdenum 0.002 to 30.00Nickel 0.005 to 84.00Nitrogen 0.0005 to 0.50Oxygen 0.0005 to 0.03Phosphorus 0.001 to 0.90Selenium 0.001 to 0.50Silicon 0.001 to 6.00Sulfur (Metal ReferenceMaterials)0.002 to 0.35Sulfur (Potassium Sulfate) 0.001 to
6、0.600Tantalum 0.001 to 10.00Tellurium 0.001 to 0.35Tin 0.002 to 0.35Titanium 0.002 to 5.00Tungsten 0.005 to 21.00Vanadium 0.005 to 5.50Zinc 0.005 to 0.20Zirconium 0.005 to 2.5001.2 The test methods appear in the following order:SectionsCarbon, Total, by the CombustionInstrumental MeasurementTest Met
7、hod 10-20Nitrogen by the Inert Gas FusionThermal ConductivityTest Method32-42Oxygen by the Inert Gas Fusion Test Method 43-54Sulfur by the Combustion-Infrared Absorption Test Method(Calibration with Metal Reference Materials) 55-65Sulfur by the CombustionInfrared Absorption Test Method(Potassium Sul
8、fate Calibration) 21-311.3 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 sta
9、ndard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use. Specific hazardsstatements are given in Section 6.2. Referenced Documents2.1 ASTM Standards:3E29 Practice for Using Significant Digits in Test Data toDetermine Conform
10、ance with SpecificationsE50 Practices for Apparatus, Reagents, and Safety Consid-erations for Chemical Analysis of Metals, Ores, andRelated MaterialsE 135 Terminology Relating to Analytical Chemistry forMetals, Ores, and Related MaterialsE 173 Practice for Conducting Interlaboratory Studies ofMethod
11、s for Chemical Analysis of Metals4E 1601 Practice for Conducting an Interlaboratory Study to1These test methods are under the jurisdiction of ASTM Committee E01 onAnalytical Chemistry for Metals, Ores, and Related Materials and are the directresponsibility of Subcommittee E01.01 on Iron, Steel, and
12、Ferroalloys.Current edition approved Nov. 1, 2008. Published November 2008. Originallyapproved in 1984. Last previous edition approved in 2003 as E 1019 03.2Some of these test methods represent revisions of test methods covered by TestMethods E 350, E 351, E 352, E 353, and E 354, which appear in th
13、e Annual Bookof ASTM Standards, Vol 03.05.3For 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.4Withdrawn. The las
14、t approved version of this historical standard is referencedon www.astm.org.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.Evaluate the Performance of an Analytical MethodE 1806 Practice for Sampling Steel and Iron for Determi-natio
15、n of Chemical Composition3. Terminology3.1 For definition of terms used in this test method, refer toTerminology E 135.4. Significance and Use4.1 These test methods for the chemical analysis of metalsand alloys are primarily intended to test such materials forcompliance with compositional specificat
16、ions. It is assumedthat all who use these test methods will be trained analysts,capable of performing common laboratory procedures skill-fully and safely. It is expected that work will be performed ina properly equipped laboratory.5. Apparatus and Reagents5.1 Apparatus and reagents required for each
17、 determinationare listed in separate sections preceding the procedure.6. Hazards6.1 For hazards to be observed in the use of certain reagentsin this test method, refer to Practices E50.6.2 Use care when handling hot crucibles and operatingfurnaces to avoid personal injury by either burn or electrica
18、lshock.7. Sampling7.1 For procedures for sampling the materials, refer to thoseparts of Practice E 1806.8. Rounding Calculated Values8.1 Calculated values shall be rounded to the desired num-ber of places as directed in Practice E29.9. Interlaboratory Studies9.1 These test methods have been evaluate
19、d in accordancewith Practice E 173. The Reproducibility R2of Practice E 173corresponds to the Reproducibility Index R of Practice E 1601.The Repeatability R1of Practice E 173 corresponds to theRepeatability Index r of Practice E 1601.TOTAL CARBON BY THE COMBUSTIONINSTRUMENTAL MEASUREMENT TEST METHOD
20、10. Scope10.1 This test method covers the determination of carbon inconcentrations from 0.005 % to 4.5 %.11. Summary of Test Method11.1 The carbon is converted to carbon dioxide by combus-tion in a stream of oxygen.11.1.1 Thermal Conductivity Test MethodThe carbon di-oxide is absorbed on a suitable
21、grade of zeolite, released byheating the zeolite, and swept by helium or oxygen into achromatographic column. Upon elution, the amount of carbondioxide is measured in a thermistor-type conductivity cell.Refer to Fig. 1.11.1.2 Infrared (IR) Absorption, Test Method ATheamount of carbon dioxide is meas
22、ured by infrared (IR)absorption. Carbon dioxide (CO2) absorbs IR energy at aprecise wavelength within the IR spectrum. Energy of thiswavelength is absorbed as the gas passes through a cell body inwhich the IR energy is transmitted. All other IR energy iseliminated from reaching the detector by a pre
23、cise wavelengthfilter. Thus, the absorption of IR energy can be attributed toonly CO2and its concentration is measured as changes inenergy at the detector. One cell is used as both a reference anda measure chamber. Total carbon, as CO2, is monitored andmeasured over a period of time. Refer to Fig. 2
24、.11.1.3 Infrared (IR) Absorption, Test Method BThe detec-tor consists of an IR energy source, a separate measurechamber and reference chamber, and a diaphragm acting as oneplate of a parallel plate capacitor. During specimen combus-tion, the flow of CO2with its oxygen gas carrier is routedthrough th
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