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Significance and Use
3.1 Aluminum oxide pellets are used in a reactor core as filler or spacers within fuel, burnable poison, or control rods. In order to be suitable for this purpose, the material must meet certain criteria for impurity content. These test methods are designed to show whether or not a given material meets the specifications for these items as described in Specification C785.
3.2 Aluminum oxide-boron carbide composite pellets are used in a reactor core as a component in neutron absorber rods. In order to be suitable for this purpose, the material must meet certain criteria for boron content, isotopic composition, and impurity content as described in Specification C784.
1.1 These test methods cover procedures for the chemical, mass spectrometric, and spectrochemical analysis of nuclear-grade aluminum oxide and aluminum oxide-boron carbide composite pellets to determine compliance with specifications.
Boron by Titrimetry and ICP OES
7 to 16
Separation of Boron for Mass Spectrometry
17 to 22
Isotopic Composition by Mass Spectrometry
23 to 26
Separation of Halides by Pyrohydrolysis
27 to 30
Chloride and Fluoride by Ion-Selective Electrode
31 to 33
Chloride, Bromide, and Iodide by Amperometric Microtitrimetry
34 to 36
Trace Elements by Emission Spectroscopy
37 to 49
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 and health practices and determine the applicability of regulatory limitations prior to use. (For specific precautionary statements, see Section 5.)
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
C784 Specification for Nuclear-Grade Aluminum Oxide-Boron Carbide Composite Pellets
C785 Specification for Nuclear-Grade Aluminum Oxide Pellets
C791 Test Methods for Chemical, Mass Spectrometric, and Spectrochemical Analysis of Nuclear-Grade Boron Carbide
C799 Test Methods for Chemical, Mass Spectrometric, Spectrochemical, Nuclear, and Radiochemical Analysis of Nuclear-Grade Uranyl Nitrate Solutions
D1193 Specification for Reagent Water
E115 Practice for Photographic Processing in Optical Emission Spectrographic Analysis
E116 Practice for Photographic Photometry in Spectrochemical Analysis
ICS Number Code 27.120.30 (Fissile materials and nuclear fuel technology)
UNSPSC Code 26142106(Nuclear reactor control rod systems)