ASTM C1457-18
Standard Test Method for Determination of Total Hydrogen Content of Uranium Oxide Powders and Pellets by Carrier Gas Extraction

Standard No.

ASTM C1457-18

Release Date

2018

Published By

American Society for Testing and Materials (ASTM)

Latest

ASTM C1457-18

Scope

1.1 This test method applies to the determination of hydrogen in nuclear-grade uranium oxide powders and pellets to determine compliance with specifications. Gadolinium oxide (Gd2O3) and gadolinium oxide-uranium oxide powders and pellets may also be analyzed using this test method. 1.2 This standard describes a procedure for measuring the total hydrogen content of uranium oxides. The total hydrogen content results from absorbed water, water of crystallization, hydro-carbides and other hydrogenated compounds which may exist as fuel’s impurities. 1.3 This test method covers the determination of 0.05 to 200 µg of residual hydrogen. 1.4 This test method describes an electrode furnace carrier gas combustion system equipped with a thermal conductivity detector. 1.5 The preferred system of units is micrograms hydrogen per gram of sample (µg/g sample) or micrograms hydrogen per gram of uranium (µg/g U). 1.6 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.7 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 9. 1.8 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.

ASTM C1457-18 Referenced Document

• ASTM C753 Standard Specification for Nuclear-Grade, Sinterable Uranium Dioxide Powder
• ASTM C776 Standard Specification for Sintered Uranium Dioxide Pellets for Light Water Reactors*， 2022-07-01 Update
• ASTM C859 Standard Terminology Relating to Nuclear Materials
• ASTM C888 Standard Specification for Nuclear-Grade Gadolinium Oxide (Gd₂O₃) Powder
• ASTM C922 Standard Specification for Sintered Gadolinium Oxide-Uranium Dioxide Pellets for Light Water Reactors*， 2024-04-22 Update

ASTM C1457-18 history

• 2018 ASTM C1457-18 Standard Test Method for Determination of Total Hydrogen Content of Uranium Oxide Powders and Pellets by Carrier Gas Extraction
• 2000 ASTM C1457-00(2010)e1 Standard Test Method for the Determination of Total Hydrogen Content of Uranium Oxide Powders and Pellets by Carrier Gas Extraction
• 2000 ASTM C1457-00(2005) Standard Test Method for the Determination of Total Hydrogen Content of Uranium Oxide Powders and Pellets by Carrier Gas Extraction
• 2000 ASTM C1457-00 Standard Test Method for the Determination of Total Hydrogen Content of Uranium Oxide Powders and Pellets by Carrier Gas Extraction