ASTM C1022-05
(Test Method)Standard Test Methods for Chemical and Atomic Absorption Analysis of Uranium-Ore Concentrate
Standard Test Methods for Chemical and Atomic Absorption Analysis of Uranium-Ore Concentrate
SIGNIFICANCE AND USE
The test methods in this standard are designed to show whether a given material meets the specifications prescribed in Specification C 967.
Because of the variability of matrices of uranium-ore concentrate and the lack of suitable reference or calibration materials, the precision and bias of these test methods should be established by each individual laboratory that will use them. The precision and bias statements given for each test method are those reported by various laboratories and can be used as a guideline.
Instrumental test methods such as X-ray fluorescence and emission spectroscopy can be used for the determination of some impurities where such equipment is available.
SCOPE
1.1 These test methods cover procedures for the chemical and atomic absorption analysis of uranium-ore concentrates to determine compliance with the requirements prescribed in Specification C 967.
1.2 The analytical procedures appear in the following order:
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. A specific precautionary statement is given in Section 7.
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Designation:C1022–05
Standard Test Methods for
Chemical and Atomic Absorption Analysis of Uranium-Ore
1
Concentrate
This standard is issued under the fixed designation C1022; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope C761 Test Methods for Chemical, Mass Spectrometric,
Spectrochemical, Nuclear, and Radiochemical Analysis of
1.1 These test methods cover procedures for the chemical
Uranium Hexafluoride
and atomic absorption analysis of uranium-ore concentrates to
C859 Terminology Relating to Nuclear Materials
determine compliance with the requirements prescribed in
C967 Specification for Uranium Ore Concentrate
Specification C967.
C1110 Practice for Sample Preparation for X-Ray Emission
1.2 The analytical procedures appear in the following order:
Spectrometric Analysis of Uranium in Ores Using the
Sections
Glass Fusion or Pressed Powder Method
Uranium by Ferrous Sulfate Reduction—Potassium Dichromate
Titrimetry 9 C1219 Test Methods for Arsenic in Uranium Hexafluoride
Nitric Acid-Insoluble Uranium 10 to 18
C1254 Test Method for Determination of Uranium in Min-
Extractable Organic Material 19 to 26
eral Acids by X-Ray Fluorescence
Determination of Arsenic 27
Carbonate by CO Gravimetry 28 to 34 C1267 Test Method for Uranium by Iron (II) Reduction in
2
Fluoride by Ion-Selective Electrode 35 to 42
Phosphoric Acid Followed by Chromium (VI) Titration in
Halides by Volhard Titration 43 to 50
the Presence of Vanadium
Moisture by Loss of Weight at 110°C 51 to 57
Phosphorus by Spectrophotometry 58 to 66 C1287 Test Method for Determination of Impurities in
Determination of Silicon 67
Nuclear Grade Uranium Compounds by Inductively
Determination of Thorium 68
Coupled Plasma Mass Spectrometry
Calcium, Iron, Magnesium, Molybdenum, Titanium, and Vana-
dium by Atomic Absorption Spectrophotometry 69 to 78 C1347 Practice for Preparation and Dissolution of Uranium
Potassium and Sodium by Atomic Absorption
Materials for Analysis
Spectrophotometry 79 to 88
D1193 Specification for Reagent Water
Boron by Spectrophotometry 89 to 98
E60 Practice for Analysis of Metals, Ores, and Related
1.3 This standard does not purport to address all of the
Materials by Molecular Absorption Spectrometry
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro-
3. Terminology
priate safety and health practices and determine the applica-
3.1 Definitions—For definitions of terms used in these test
bility of regulatory limitations prior to use. A specific precau-
methods, refer to Terminology C859.
tionary statement is given in Section 7.
4. Significance and Use
2. Referenced Documents
4.1 The test methods in this standard are designed to show
2
2.1 ASTM Standards:
whether a given material meets the specifications prescribed in
Specification C967.
1
4.2 Because of the variability of matrices of uranium-ore
These test methods are under the jurisdiction of ASTM Committee C26 on
Nuclear Fuel Cycle and are the direct responsibility of Subcommittee C26.05 on
concentrate and the lack of suitable reference or calibration
Methods of Test.
materials, the precision and bias of these test methods should
Current edition approved Jan. 1, 2005. Published February 2005. Originally
be established by each individual laboratory that will use them.
approved in 1984. Last previous edition approved in 2002 as C1022 – 02. DOI:
10.1520/C1022-05. The precision and bias statements given for each test method
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
are those reported by various laboratories and can be used as a
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
guideline.
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website.
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C1022–05
4.3 Instrumental test methods such as X-ray fluorescence NITRIC ACID-INSOLUBLE URANIUM
andemissionspectroscopycanbeusedforthedeterminationof
10. Scope
some impurities where such equipment is available.
10.1 This test method covers the determination of that
5. Interferences
quantity of uranium in uranium-ore concentrate that is not
soluble in nitric acid.
5.1 Interferences are identified in the individual test meth-
ods.
11. Summary of Test Method
5.2 Oreconcentratesareofaveryvariablenature;therefore,
11.1 A sample of ore concentrate is digested in 10 M nitric
all interferences are very difficult to pred
...
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