ASTM_C_1022_-_05_2010e1.pdf

Designation:C102205(Reapproved 2010)1Standard Test Methods forChemical and Atomic Absorption Analysis of Uranium-OreConcentrate1This standard is issued under the fixed designation C1022;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.1NOTESections 1.4 and 7.2 were editorially corrected in August 2010.1.Scope1.1 These test methods cover procedures for the chemicaland atomic absorption analysis of uranium-ore concentrates todetermine compliance with the requirements prescribed inSpecification C967.1.2 The analytical procedures appear in the following order:SectionsUranium by Ferrous Sulfate ReductionPotassium DichromateTitrimetry9Nitric Acid-Insoluble Uranium10 to 18Extractable Organic Material19 to 26Determination of Arsenic27Carbonate by CO2Gravimetry28 to 34Fluoride by Ion-Selective Electrode35 to 42Halides by Volhard Titration43 to 50Moisture by Loss of Weight at 110C51 to 57Phosphorus by Spectrophotometry58 to 66Determination of Silicon67Determination of Thorium68Calcium,Iron,Magnesium,Molybdenum,Titanium,and Vana-dium by Atomic Absorption Spectrophotometry69 to 78Potassium and Sodium by Atomic AbsorptionSpectrophotometry79 to 88Boron by Spectrophotometry89 to 981.3 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.A specific precau-tionary statement is given in Section 7.2.Referenced Documents2.1 ASTM Standards:2C761 Test Methods for Chemical,Mass Spectrometric,Spectrochemical,Nuclear,and Radiochemical Analysis ofUranium HexafluorideC859 Terminology Relating to Nuclear MaterialsC967 Specification for Uranium Ore ConcentrateC1110 Test Method for Determining Elements in WasteStreams by Inductively Coupled Plasma-Atomic EmissionSpectroscopy(Withdrawn 2014)3C1219 Test Methods for Arsenic in Uranium Hexafluoride(Withdrawn 2015)3C1254 Test Method for Determination of Uranium in Min-eral Acids by X-Ray FluorescenceC1267 Test Method for Uranium by Iron(II)Reduction inPhosphoric Acid Followed by Chromium(VI)Titration inthe Presence of VanadiumC1287 Test Method for Determination of Impurities inNuclear Grade Uranium Compounds by InductivelyCoupled Plasma Mass SpectrometryC1347 Practice for Preparation and Dissolution of UraniumMaterials for AnalysisD1193 Specification for Reagent WaterE60 Practice for Analysis of Metals,Ores,and RelatedMaterials by Spectrophotometry1These test methods are under the jurisdiction of ASTM Committee C26 onNuclear Fuel Cycle and are the direct responsibility of Subcommittee C26.05 onMethods of Test.Current edition approved June 1,2010.Published June 2010.Originallyapproved in 1984.Last previous edition approved in 2005 as C1022 05.DOI:10.1520/C1022-05R10E1.2For 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.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 3.Terminology3.1 DefinitionsFor definitions of terms used in these testmethods,refer to Terminology C859.4.Significance and Use4.1 The test methods in this standard are designed to showwhether a given material meets the specifications prescribed inSpecification C967.4.2 Because of the variability of matrices of uranium-oreconcentrate and the lack of suitable reference or calibrationmaterials,the precision and bias of these test methods shouldbe established by each individual laboratory that will use them.The precision and bias statements given for each test methodare those reported by various laboratories and can be used as aguideline.4.3 Instrumental test methods such as X-ray fluorescenceand emission spectroscopy can be used for the determination ofsome impurities where such equipment is available.5.Interferences5.1 Interferences are identified in the individual test meth-ods.5.2 Ore concentrates are of a very variable nature;therefore,all interferences are very difficult to predict.The individualuser should verify the applicability of each procedure forspecific ore concentrates.6.Reagents6.1 Purity of ReagentsReagent grade chemicals shall beused in all tests.Unless otherwise indicated,it is intended thatall reagents shall conform to the specifications of the Commit-tee on Analytical Reagents of the American Chemical Society,w