ASTM C1254-18
(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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. Specific precautionary statements are given in Section 9 and Note 1.
1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
General Information
Relations
Buy Standard
Standards Content (Sample)
This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation: C1254 − 18
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
3
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
4.1 Solutionstandardscontaining0.025guranium/Lto20g
standard.
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, health, and environmental practices and deter-
L-alpha emission line and the appropriate emission line for the
mine the applicability of regulatory limitations prior to use.
internal standard (usually the K-alpha line). The intensities
Specific precautionary statements are given in Section 9 and
generated are measured by an appropriate detector. The inten-
Note 1.
sity ratio values obtained from this data are used to calibrate
1.5 This international standard was developed in accor-
the X-ray analyzer.
dance with internationally recognized principles on standard-
ization established in the Decision on Principles for the
5. Significance and Use
Development of International Standards, Guides and Recom-
5.1 This test method is applicable to aqueous solutions of
mendations issued by the World Trade Organization Technical
uranium containing 0.05 to 20 g uranium per litre of solution
Barriers to Trade (TBT) Committee.
presented to the spectrometer.
5.2 Either wavelength-dispersive or energy-dispersive
2. Referenced Documents
X-ray fluorescence systems may be used provided the software
2
2.1 ASTM Standards:
accompanying the system is able to accommodate the use of
C859 Terminology Relating to Nuclear Materials
internal standards.
D1193 Specification for Reagent Water
E135 Terminology Relating to Analytical Chemistry for
6. Interferences
Metals, Ores, and Related Materials
6.1 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
1
This test method is under the jurisdiction ofASTM Committee C26 on Nuclear
standard element or that this contamination has been corrected
Fuel Cycle and is the direct responsibility of Subcommittee C26.05 on Methods of
for mathematically whenever present. Such corrections are not
Test.
addressed in this test method.
Current edition approved Oct. 1, 2018. Published November 2018. Originally
approved in 1993. Last previous edition approved in 2013 as C1254 – 13. DOI:
6.2 Alternatively a scatter line may be used as internal
10.1520/C1254-18.
standard in which case the preparation of internal standard
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
3
the ASTM website. 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 − 18
solutions and subsequent doping of samples and calibration 8.7 Yttrium Oxide, Y O .
2 3
4
standards is unnecessary.
9. Technical Precautions
6.3 Sample must not contain significant concentration of
9.1 XRF equipment analyzes by the interaction of ionizing
anyelementsthathavemassabsorptionedgesthatfallbetween
radiation with the sample. Applicable safety regulat
...
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 − 13 C1254 − 18
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 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 safety, health, and healthenvironmental practices and determine the
applicability of regulatory limitations prior to use. Specific precautionary statements are given in Section 9 and Note 1.
1.5 This international standard was developed in accordance with internationally recognized principles on standardization
established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued
by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
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:
3
ANSI/HPS N43.2–2001 Radiation Safety for X-ray Diffraction and Fluorescence Analysis Equipment
3. Terminology
3.1 Definitions:
3.1.1 See Terminologies 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 uranium/L to 20 g uranium/L and an appropriate internal standard (usually either
yttrium or 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 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.
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 Jan. 1, 2013Oct. 1, 2018. Published January 2013November 2018. Originally approved in 1993. Last previous edition approved in 19992013
as C1254 – 99 (2005).C1254 – 13. DOI: 10.1520/C1254-13.10.1520/C1254-18.
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
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 − 18
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.
6. Interferences
6.1 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.
6.2 Alternatively a scatter line may be
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.