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ASTM C889-18
Standard Test Methods for Chemical and Mass Spectrometric Analysis of Nuclear-Grade Gadolinium Oxide (Gd2O3) Powder
Standard Test Methods for Chemical and Mass Spectrometric Analysis of Nuclear-Grade Gadolinium Oxide (Gd2 O3 ) Powder
C0889-18
ASTM|C0889-18|en-US
Standard Test Methods for Chemical and Mass Spectrometric Analysis of Nuclear-Grade Gadolinium Oxide (Gd2 O3 ) Powder
Standard
C889 Standard Test Methods for Chemical and Mass Spectrometric Analysis of Nuclear-Grade Gadolinium Oxide (Gd2 O3 ) Powder>
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BOS Vol. 12.01 Committee C26
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Significance and Use
4.1 Gadolinium oxide powder is used, with subsequent processing, in nuclear fuel applications, such as an addition to uranium dioxide. These test methods are designed to determine whether the material meets the requirements described in Specification C888.
4.1.1 The material is analyzed to determine whether it contains the minimum gadolinium oxide content specified.
4.1.2 The loss on ignition and impurity content are determined to ensure that the weight loss and the maximum concentration limit of specified impurity elements are not exceeded.
Scope
1.1 These test methods cover procedures for the chemical and mass spectrometric analysis of nuclear-grade gadolinium oxide powders to determine compliance with specifications.
1.2 The analytical procedures appear in the following order:
|
| Sections |
| Carbon by Direct Combustion—Thermal Conductivity | 2 |
| C1408 Test Method for Carbon (Total) in Uranium Oxide | 3 |
| Total Chlorine and Fluorine by Pyrohydrolysis Ion— | 4 |
| C1502 Test Method for Determination of Total Chlorine and | 3 |
| Loss of Weight on Ignition | 8 – 14 |
| Sulfur by Combustion—Iodometric Titration | 5 |
| Impurity Elements by a Spark-Source Mass Spectrographic |
|
| C761 Test Methods for Chemical, Mass Spectrometric, | 3 |
| C1287 Test Method for Determination of Impurities in | 3 |
| Gadolinium Content in Gadolinium Oxide by Impurity | 15 – 18 |
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. For specific hazard statements, see 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.