ASTM C 799:2019

1.1 These test methods cover procedures for the chemical, mass spectrometric, spectrochemical, nuclear, and radiochemical analysis of nuclear-grade uranyl nitrate solution to determine compliance with specifications. 1.2 The analytical procedures appear in the following order: Sections Determination of Uranium 8 Specific Gravity by Pycnometry 16 - 21 Free Acid by Oxalate Complexation 22 - 28 Determination of Thorium 29 Determination of Chromium 30 Determination of Molybdenum 31 Halogens Separation by Steam Distillation 32 - 36 Fluoride by Specific Ion Electrode 37 - 43 Halogen Distillate Analysis: Chloride, Bromide, and Iodide by Amperometric Microtitrimetry 44 Determination of Chloride and Bromide 45 Determination of Sulfur by X-Ray Fluorescence 46 Sulfate Sulfur by (Photometric) Turbidimetry 47 Phosphorus by the Molybdenum Blue (Photometric) Method 55 - 62 Silicon by the Molybdenum Blue (Photometric) Method 63 - 70 Carbon by Persulfate Oxidation-Acid Titrimetry 71 Conversion to U 3 O 8 72 - 75 Boron by Emission Spectrography ^A Impurity Elements by Spark Source Mass Spectrography 77 Isotopic Composition by Thermal Ionization Mass Spectrometry 78 Uranium-232 by Alpha Spectrometry 79 - 85 Total Alpha Activity by Direct Alpha Counting 86 - 92 Fission Product Activity by Beta Counting 93 - 99 Entrained Organic Matter by Infrared Spectrophotometry 100 Fission Product Activity by Gamma Counting 101 Determination of Arsenic 102 Determination of Impurities for the EBC Calculation 103 Determination of Technetium 99 104 Determination of Plutonium and Neptunium 105 1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. Specific precautionary statements are given in Section 6 . 1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

27.120.30