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

Standard No.

ASTM C1457-00(2005)

Release Date

2000

Published By

American Society for Testing and Materials (ASTM)

Status

Be replaced

Replace By

ASTM C1457-00(2010)e1

Latest

ASTM C1457-18

Scope

Uranium dioxide is used as a nuclear-reactor fuel. Gadolinium oxide is used as an additive to uranium dioxide. In order to be suitable for this purpose, these materials must meet certain criteria for impurity content. This test method is designed to determine whether the hydrogen content meets Specifications C 753, C 776, C 888, and C 922.

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 g 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 (g/g sample) or micrograms hydrogen per gram of uranium (g/g U).

1.6 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.

ASTM C1457-00(2005) 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
• 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*， 2024-04-19 Update

ASTM C1457-00(2005) 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