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ASTM C697-16

Standard Test Methods for Chemical, Mass Spectrometric, and Spectrochemical Analysis of Nuclear-Grade Plutonium Dioxide Powders and Pellets

NORMA vydaná dňa 1.6.2016

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Informácie o norme:

Označenie normy: ASTM C697-16
Dátum vydania normy: 1.6.2016
Kód tovaru: NS-642244
Počet strán: 25
Približná hmotnosť: 75 g (0.17 libier)
Krajina: Americká technická norma
Kategória: Technické normy ASTM

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Keywords:
impurity content, isotopic composition, plutonium content, plutonium dioxide pellets, plutonium dioxide powders,, ICS Number Code 27.120.30 (Fissile materials and nuclear fuel technology)

Doplňujúce informácie

Significance and Use

4.1 Plutonium dioxide is used in mixtures with uranium dioxide as a nuclear-reactor fuel. In order to be suitable for this purpose, the material must meet certain criteria for plutonium content, isotopic composition, and 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 C757.

4.1.1 An assay is performed to determine whether the material has the minimum plutonium content specified on a dry weight basis.

4.1.2 Determination of the isotopic content of the plutonium in the plutonium dioxide powder is made to establish whether the effective fissile content is in compliance with the purchaser's specifications.

4.1.3 Impurity content is determined to ensure that the maximum concentration limit of certain impurity elements is not exceeded. Determination of impurities is also required for calculation of the equivalent boron content (EBC) as described in Practice C1233.

4.2 Fitness for Purpose of Safeguards and Nuclear Safety Applications—Methods intended for use in safeguards and nuclear safety applications shall meet the requirements specified by Guide C1068 for use in such applications.

1. Scope

1.1 These test methods cover procedures for the chemical, mass spectrometric, and spectrochemical analysis of nuclear-grade plutonium dioxide powders and pellets to determine compliance with specifications.

1.2 The analytical procedures appear in the following order:

Sections

Plutonium Sample Handling

8 to 10

Plutonium by Controlled-Potential Coulometry

Plutonium by Ceric Sulfate Titration

Plutonium by Amperometric Titration with Iron(II)

Plutonium by Diode Array Spectrophotometry

Nitrogen by Distillation Spectrophotometry Using Nessler
Reagent

11 to 18

Carbon (Total) by Direct Combustion–Thermal Conductivity

19 to 29

Total Chlorine and Fluorine by Pyrohydrolysis

30 to 37

Sulfur by Distillation Spectrophotometry

38 to 46

Plutonium Isotopic Analysis by Mass Spectrometry

Rare Earth Elements by Spectroscopy

47 to 54

Trace Elements by Carrier–Distillation Spectroscopy

55 to 62

(Alternative: Impurities by ICP-AES or ICP-MS)

Impurity Elements by Spark-Source Mass Spectrography

63 to 69

Moisture by the Coulometric Electrolytic Moisture Analyzer

70 to 77

Total Gas in Reactor-Grade Plutonium Dioxide Pellets

Plutonium-238 Isotopic Abundance by Alpha Spectrometry

Americium-241 in Plutonium by Gamma-Ray Spectrometry

Rare Earths By Copper Spark-Spectroscopy

78 to 87

Plutonium Isotopic Analysis by Mass Spectrometry

88 to 96

Oxygen-To-Metal Atom Ratio by Gravimetry

97 to 104

1.3 The values stated in SI units are to be regarded as standard. The values given in parentheses are for information only.

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 Sections 6, 16.2.5, 44.7, 51.9 and 92.5.1.

2. Referenced Documents

E115-97	Standard Practice for Photographic Processing in Optical Emission Spectrographic Analysis (Withdrawn 2002)
E60-11(2022)e1	Standard Practice for Analysis of Metals, Ores, and Related Materials by Spectrophotometry (Includes all amendments and changes 6/29/2022).
D4327-17	Standard Test Method for Anions in Water by Suppressed Ion Chromatography
E130-08	Standard Practice for Designation of Shapes and Sizes of Graphite Electrodes (Withdrawn 2013)
C1415-18	Standard Test Method for 238Pu Isotopic Abundance By Alpha Spectrometry
D1193-06(2018)	Standard Specification for Reagent Water
C1672-23	Standard Test Method for Determination of the Uranium, Plutonium or Americium Isotopic Composition or Concentration by the Total Evaporation Method Using a Thermal Ionization Mass Spectrometer
C1637-21	Standard Test Method for Determination of Impurities in Plutonium Materials—Acid Digestion and Inductively Coupled Plasma-Mass Spectroscopy (ICP-MS) Analysis
C1625-19	Standard Test Method for Uranium and Plutonium Concentrations and Isotopic Abundances by Thermal Ionization Mass Spectrometry
C1432-23	Standard Test Method for Determination of Impurities in Plutonium: Acid Dissolution, Ion Exchange Matrix Separation, and Inductively Coupled Plasma-Atomic Emission Spectroscopic (ICP/AES) Analysis
C1068-21	Standard Guide for Qualification of Measurement Methods by a Laboratory Within the Nuclear Industry
C859-24	Standard Terminology Relating to Nuclear Materials
C852-09	Standard Guide for Design Criteria for Plutonium Gloveboxes
C757-16(2021)	Standard Specification for Nuclear-Grade Plutonium Dioxide Powder for Light Water Reactors
C1307-21	Standard Test Method for Plutonium Assay by Plutonium (III) Diode Array Spectrophotometry
E116-97	Standard Practice for Photographic Photometry in Spectrochemical Analysis (Withdrawn 2002)
C1235-99	Standard Test Method for Plutonium by Titanium(III)/Cerium(IV) Titration (Withdrawn 2005)
C1233-15(2021)	Standard Practice for Determining Equivalent Boron Contents of Nuclear Materials
C1206-02	Standard Test Method for Plutonium by Iron (II)/Chromium (VI) Amperometric Titration
C1168-23	Standard Practice for Preparation and Dissolution of Plutonium Materials for Analysis
C1165-23	Standard Test Method for Determining Plutonium by Controlled-Potential Coulometry in H2SO4 at a Platinum Working Electrode
C1108-23	Standard Test Method for Plutonium by Controlled-Potential Coulometry
C1268-23	Standard Test Method for Quantitative Determination of 241Am in Plutonium by Gamma-Ray Spectrometry

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