ASTM C1254-13
(Test Method)Standard Test Method for Determination of Uranium in Mineral Acids by X-Ray Fluorescence
Standard Test Method for Determination of Uranium in Mineral Acids by X-Ray Fluorescence
SIGNIFICANCE AND USE
5.1 This test method is applicable to aqueous solutions of uranium containing 0.05 to 20 g uranium per litre of solution presented to the spectrometer.
5.2 Either wavelength-dispersive or energy-dispersive X-ray fluorescence systems may be used provided the software accompanying the system is able to accommodate the use of internal standards.
SCOPE
1.1 This test method covers the steps necessary for the preparation and analysis by X-ray fluorescence (XRF) of mineral acid solutions containing uranium.
1.2 This test method is valid for those solutions containing 0.05 to 20 g uranium/L as presented to the spectrometer. Higher concentrations may be covered by appropriate dilutions.
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. Specific precautionary statements are given in Section 9 and Note 1.
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Designation: C1254 − 13
Standard Test Method for
Determination of Uranium in Mineral Acids by X-Ray
1
Fluorescence
This standard is issued under the fixed designation C1254; 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 2.2 Other Document:
ANSI/HPS N43.2–2001 Radiation Safety for X-ray Diffrac-
1.1 This test method covers the steps necessary for the
4
tion and Fluorescence Analysis Equipment
preparation and analysis by X-ray fluorescence (XRF) of
mineral acid solutions containing uranium.
3. Terminology
1.2 This test method is valid for those solutions containing
3.1 Definitions:
0.05 to 20 g uranium/L as presented to the spectrometer.
3.1.1 See Terminologies E135 and C859 for definitions of
Higher concentrations may be covered by appropriate dilu-
terms applicable to this test method.
tions.
4. Summary of Test Method
1.3 The values stated in SI units are to be regarded as the
standard.
4.1 Solutionstandardscontaining0.025guranium/Lto20g
uranium/L and an appropriate internal standard (usually either
1.4 This standard does not purport to address all of the
yttriumorstrontium),unlessascatterlineisusedinlieuof,are
safety concerns, if any, associated with its use. It is the
placed in a liquid sample holder of an X-ray spectrometer and
responsibility of the user of this standard to establish appro-
exposed to an X-ray beam capable of exciting the uranium
priate safety and health practices and determine the applica-
L-alpha emission line and the appropriate emission line for the
bility of regulatory limitations prior to use. Specific precau-
internal standard (usually the K-alpha line). The intensities
tionary statements are given in Section 9 and Note 1.
generated are measured by an appropriate detector. The inten-
sity ratio values obtained from this data are used to calibrate
2. Referenced Documents
the X-ray analyzer.
2
2.1 ASTM Standards:
C859 Terminology Relating to Nuclear Materials
5. Significance and Use
C982 Guide for Selecting Components for Energy-
5.1 This test method is applicable to aqueous solutions of
Dispersive X-Ray Fluorescence (XRF) Systems (With-
uranium containing 0.05 to 20 g uranium per litre of solution
3
drawn 2008)
presented to the spectrometer.
C1118 Guide for Selecting Components for Wavelength-
5.2 Either wavelength-dispersive or energy-dispersive
Dispersive X-Ray Fluorescence (XRF) Systems (With-
3
X-ray fluorescence systems may be used provided the software
drawn 2011)
accompanying the system is able to accommodate the use of
D1193 Specification for Reagent Water
internal standards.
E135 Terminology Relating to Analytical Chemistry for
Metals, Ores, and Related Materials
6. Interferences
6.1 This test method requires the use of an appropriate
internal standard. Care must be taken to ascertain that samples
1
This test method is under the jurisdiction ofASTM Committee C26 on Nuclear
analyzed by this test method do not contain the internal
Fuel Cycle and is the direct responsibility of Subcommittee C26.05 on Methods of
Test.
standard element or that this contamination has been corrected
Current edition approved Jan. 1, 2013. Published January 2013. Originally
for mathematically whenever present. Such corrections are not
approved in 1993. Last previous edition approved in 1999 as C1254 – 99 (2005).
addressed in this test method.
DOI: 10.1520/C1254-13.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
6.2 Alternatively a scatter line may be used as internal
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
standard in which case the preparation of internal standard
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website.
3
The last approved version of this historical standard is referenced on
4
www.astm.org. Available from the Health Physics Society, McLean, Virginia, 22101.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
C1254 − 13
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solutions and subsequent doping of samples and calibration 8.6 Uranium Oxide, U O , NBLCRM-129 (or equivalent).
3 8
5
standards is unnecessary.
8.7 Yttrium Oxide, Y O .
2 3
6.3 Sample must not contain significant concentration of
9. Technical Precautions
anyelementsthathavemassabsorptionedgesthatfallbetween
the energies of the uranium L-alpha line and the internal 9.1 XRF equipment analyzes by the interaction of ionizing
standard line. radiation with the sample. Applicable safety regulations and
standard operating procedures must
...
This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: C1254 − 99 (Reapproved 2005) C1254 − 13
Standard Test Method for
Determination of Uranium in Mineral Acids by X-Ray
1
Fluorescence
This standard is issued under the fixed designation C1254; 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
1.1 This test method covers the steps necessary for the preparation and analysis by X-ray fluorescence (XRF) of mineral acid
solutions containing uranium.
1.2 This test method is valid for those solutions containing 0.05 to 20 g uranium/L as presented to the spectrometer. Higher
concentrations may be covered by appropriate dilutions.
1.3 This test method requires the use of an appropriate internal standard. Care must be taken to ascertain that samples analyzed
by this test method do not contain the internal standard element or that this contamination has been corrected for mathematically
whenever present. Such corrections are not addressed in this test method. Care must also be taken that the choice of internal
standard and sample medium are compatible; that is, do not use yttrium with solutions containing HF or strontium with those
2
having H SO . Alternatively a scatter line may be used as internal standard.
2 4
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. Specific precautionary statements are given in Section 89 and Note 1.
2. Referenced Documents
2
2.1 ASTM Standards:
C859 Terminology Relating to Nuclear Materials
3
C982 Guide for Selecting Components for Energy-Dispersive X-Ray Fluorescence (XRF) Systems (Withdrawn 2008)
3
C1118 Guide for Selecting Components for Wavelength-Dispersive X-Ray Fluorescence (XRF) Systems (Withdrawn 2011)
D1193 Specification for Reagent Water
E135 Terminology Relating to Analytical Chemistry for Metals, Ores, and Related Materials
2.2 Other Document:
NBS Handbook 111,ANSI/HPS N43.2–2001 Radiation Safety for X-RayX-ray Diffraction and X-Ray Fluorescence Analysis
4
Equipment
3. Terminology
3.1 Definitions:
3.1.1 See TerminologyTerminologies E135 and C859 for definitions of terms applicable to this test method.
4. Summary of Test Method
4.1 Solution standards containing 0.025 g/L uraniumg uranium/L to 20 g/L uraniumg uranium/L and an appropriate internal
standard (usually either yttrium or strontium) strontium), unless a scatter line is used in lieu of, are placed in a liquid sample holder
of an X-ray spectrometer and exposed to an X-ray beam capable of exciting the uranium L-alpha emission line and the appropriate
1
This test method is under the jurisdiction of ASTM Committee C26 on Nuclear Fuel Cycle and is the direct responsibility of Subcommittee C26.05 on Methods of Test.
Current edition approved June 1, 2005Jan. 1, 2013. Published December 2005January 2013. Originally approved in 1993. Last previous edition approved in 1999 as
C1254 – 99.C1254 – 99 (2005). DOI: 10.1520/C1254-99R05.10.1520/C1254-13.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
3
The last approved version of this historical standard is referenced on www.astm.org.
4
Available as a photocopy from the U.S. Department of Commerce, National Institute of Standards and Technology, Gaithersburg, MD 20899.from the Health Physics
Society, McLean, Virginia, 22101.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
C1254 − 13
emission line for the internal standard (usually the K-alpha line). The intensities generated are measured by an appropriate detector.
The intensity ratio values obtained from this data are used to calibrate the X-ray analyzer.
5. Significance and Use
5.1 This test method is applicable to aqueous solutions of uranium containing 0.05 to 20 g uranium per litre of solution
presented to the spectrometer.
5.2 Either wavelength-dispersive or ener
...
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