Standard Test Methods for Chemical, Mass Spectrometric, Spectrochemical, Nuclear, and Radiochemical Analysis of Uranium Hexafluoride

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1.1 These test methods cover procedures for subsampling and for chemical, mass spectrometric, spectrochemical, nuclear, and radiochemical analysis of uranium hexafluoride UF₆. Most of these test methods are in routine use to determine conformance to UF₆ specifications in the Enrichment and Conversion Facilities.

1.2 The analytical procedures in this document appear in the following order:

Note 1 - Subcommittee C26.05 will confer with C26.02 concerning the renumbered section in Test Methods C761 to determine how concerns with renumbering these sections, as analytical methods are replaced with stand-alone analytical methods, are best addressed in subsequent publications.

	Sections
Subsampling of Uranium Hexafluoride	7 - 10
Gravimetric Determination of Uranium	11 - 19
Titrimetric Determination of Uranium	20
Preparation of High-Purity U₃O₈	21
Isotopic Analysis	22
Isotopic Analysis by Double-Standard Mass-Spectrometer Method	23 - 29
Determination of Hydrocarbons, Chlorocarbons, and Partially Substituted Halohydrocarbons	29-36
Atomic Absorption Determination of Antimony	36
Spectrophotometric Determination of Bromine	37
Titrimetric Determination of Chlorine	38-44
Determination of Silicon and Phosphorus	45-51
Determination of Boron and Silicon	52-59
Determination of Ruthenium	60
Determination of Titanium and Vanadium	61
Spectrographic Determination of Metallic Impurities	62
Determination of Tungsten	63
Determination of Thorium and Rare Earths	64-69
Determination of Molybdenum	70
Atomic Absorption Determination of Metallic Impurities	71-76
Impurity Determination by Spark-Source Mass Spectrography	77
Determination of Boron-Equivalent Neutron Cross Section	78
Determination of Uranium-233 Abundance by Thermal Ionization Mass Spectrometry	79
Determination of Uranium-232 by Alpha Spectrometry	80-86
Determination of Fission Product Activity	87
Determination of Plutonium by Ion Exchange and Alpha Counting	88-92
Determination of Plutonium by Extraction and Alpha Counting	93-100
Determination of Neptunium by Extraction and Alpha Counting	101-108
Atomic Absorption Determination of Chromium Soluble In Uranium Hexafluoride	109-115
Atomic Absorption Determination of Chromium Insoluble In Uranium Hexafluoride	116-122
Determination of Technetium-99 In Uranium Hexafluoride	123-131
Method for the Determiation of Gamma-Energy Emission Rate from Fission Products in Uranium Hexafluoride	132
Determination of Metallic Impurities by ICP-AES	133-142
Determination of Molybdenum, Niobium, Tantalum, Titanium, and Tungsten by ICP-AES	143-152

1.3 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 and health practices and determine the applicability of regulatory limitations prior to use. (For specific safeguard and safety consideration statements, see Section 6.)

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Published :	05/15/2011
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