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  • ASTM
    C1343-24 Standard Test Method for Determination of Low Mass Density/Fractions of Uranium in Oils, Organic Liquids, and Pellets by X-ray Fluorescence
    Edition: 2024
    $86.11
    Unlimited Users per year

Description of ASTM-C1343 2024

ASTM C1343-24

Active Standard: Standard Test Method for Determination of Low Mass Density/Fractions of Uranium in Oils, Organic Liquids, and Pellets by X-ray Fluorescence




ASTM C1343

Scope

1.1 This test method covers the steps necessary for the preparation and analysis by X-ray fluorescence (XRF) of oils and organic solutions containing uranium. Two different preparation techniques are described.

1.2 The procedure is valid for organic solutions with uranium mass densities of 20 μg/mL to 2000 μg/mL as presented to the spectrometer for the solution technique and pellets with uranium mass fractions of 200 μg/g to 50 000 μg/g for the pellet technique.

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 or that this contamination, whenever present, has been corrected for mathematically. Such corrections are not addressed in this procedure. Care must be taken that the internal standard and sample medium are compatible; that is, samples must be miscible with tri-n-butyl phosphate (TBP) and must not remove the internal standard from solution. Alternatively, a scatter line may be used as the internal standard.2

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

1.5 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 2.

1.6 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.


Keywords

organic solutions; uranium; X-ray fluorescence; XRF ;


ICS Code

ICS Number Code 17.240 (Radiation measurements)


DOI: 10.1520/C1343-24

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