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ASTM C968-12

Standard Test Methods for Analysis of Sintered Gadolinium Oxide-Uranium Dioxide Pellets

STANDARD published on 1.1.2012

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The information about the standard:

Designation standards: ASTM C968-12
Note: WITHDRAWN
Publication date standards: 1.1.2012
SKU: NS-15894
The number of pages: 6
Approximate weight : 18 g (0.04 lbs)
Country: American technical standard
Category: Technical standards ASTM

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The category - similar standards:

Fissile materials

Annotation of standard text ASTM C968-12 :

Keywords:
0 Vacuum testing, Volatile matter content--nuclear materials, XRF (X-ray fluorescence)--nuclear materials, Atomic ratio, Carbon content--nuclear materials, Ceramographic determination, Chlorine content--nuclear materials/applications, Energy-dispersive x-ray analysis (EDXA), Fluorine content--nuclear materials/applications, Gadolinia, Gadolinium oxide-uranium dioxide powder/pellets, Gases--radioactive, Homogeneity, Hot-vacuum extraction, Hydrogen content--nuclear materials, Inert gas fusion

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Significance and Use

The test methods in this method are designed to show whether a given material is in accordance with Specification C922.

1. Scope

1.1 These test methods cover procedures for the analysis of sintered gadolinium oxide-uranium dioxide pellets to determine compliance with specifications.

1.2 The analytical procedures appear in the following order:

	Section
Carbon (Total) by Direct CombustionThermal Conductivity Method
C1408 Test Method for Carbon (Total) in Uranium Oxide Powders and Pellets By Direct Combustion-Infrared Detection Method
Chlorine and Fluorine by Pyrohydrolysis Ion-Selective Electrode Method
C1502 Test Method for Determination of Total Chlorine and Fluorine in Uranium Dioxide and Gadolinium Oxide
Gadolinia Content by Energy-Dispersive X-Ray Spectrometry
C1456 Test Method for Determination of Uranium or Gadolinium, or Both, in Gadolinium Oxide-Uranium Oxide Pellets or by X-Ray Fluorescence (XRF)
Hydrogen by Inert Gas Fusion
C1457 Test Method for Determination of Total Hydrogen Content of Uranium Oxide Powders and Pellets by Carrier Gas Extraction
Isotopic Uranium Composition by Multiple-Filament Surface-Ionization Mass Spectrometric Method
C1413 Test Method for Isotopic Analysis of Hydrolysed Uranium Hexafluoride And Uranyl Nitrate Solutions By Thermal Ionization Mass Spectrometry
C1347 Practice for Preparation and Dissolution of Uranium Materials for Analysis
Nitrogen by DistillationNessler Reagent (Photometric) Method	6 to 16
Oxygen-to-Metal Ratio of Sintered Gadolinium Oxide-Uranium Dioxide Pellets
C1430 Test Method for Determination of Uranium, Oxygen to Uranium, and Oxygen to Metal (O/M) in Sintered Uranium Dioxide and Gadolinia-Uranium Dioxide Pellets by Atmospheric Equilibration
Spectrochemical Determination of Trace Impurity Elements
C1517 Test Method for Determination of Metallic Impurities in Uranium Metal or Compounds by DC-Arc Emission Spectroscopy
Total Gas by Hot Vacuum Extraction
Ceramographic Determination of Free Gd₂O₃ and Free UO₂ to Estimate the Homogeneity of (U,Gd)O₂ Pellets	17 to 24
Ceramographic Determination of Average Grain Size by Linear Intercept after Chemical Etching	25 to 32

1.3 The values stated in SI units are to be regarded as the 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 and health practices and determine the applicability of regulatory limitations prior to use.

2. Referenced Documents

C1502-16	Standard Test Method for Determination of Total Chlorine and Fluorine in Uranium Dioxide and Gadolinium Oxide
C1517-16	Standard Test Method for Determination of Metallic Impurities in Uranium Metal or Compounds by DC-Arc Emission Spectroscopy
D1193-06(2018)	Standard Specification for Reagent Water
E112-13(2021)	Standard Test Methods for Determining Average Grain Size
E146-83	Methods of Chemical Analysis of Zirconium and Zirconium Alloys (Silicon, Hydrogen, and Copper) (Withdrawn 1989)
C1456-13(2018)	Standard Test Method for Determination of Uranium or Gadolinium (or both) in Gadolinium Oxide-Uranium Oxide Pellets or by X-Ray Fluorescence (XRF)
C922-21	Standard Specification for Sintered Gadolinium Oxide-Uranium Dioxide Pellets for Light Water Reactors
C1347-08(2023)	Standard Practice for Preparation and Dissolution of Uranium Materials for Analysis
C1430-18	Standard Test Method for Determination of Uranium, Oxygen to Uranium (O/U), and Oxygen to Metal (O/M) in Sintered Uranium Dioxide and Gadolinia-Uranium Dioxide Pellets by Atmospheric Equilibration
C1457-18	Standard Test Method for Determination of Total Hydrogen Content of Uranium Oxide Powders and Pellets by Carrier Gas Extraction
C1408-16	Standard Test Method for Carbon (Total) in Uranium Oxide Powders and Pellets By Direct Combustion-Infrared Detection Method
C1413-18	Standard Test Method for Isotopic Analysis of Hydrolyzed Uranium Hexafluoride and Uranyl Nitrate Solutions by Thermal Ionization Mass Spectrometry

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